CN106179344A - A kind of indoor air purification agent of efficient white light catalysis and preparation method thereof - Google Patents
A kind of indoor air purification agent of efficient white light catalysis and preparation method thereof Download PDFInfo
- Publication number
- CN106179344A CN106179344A CN201610469094.6A CN201610469094A CN106179344A CN 106179344 A CN106179344 A CN 106179344A CN 201610469094 A CN201610469094 A CN 201610469094A CN 106179344 A CN106179344 A CN 106179344A
- Authority
- CN
- China
- Prior art keywords
- preparation
- nano
- hydro
- white light
- titanium dioxide
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000002360 preparation method Methods 0.000 title claims abstract description 23
- 238000004887 air purification Methods 0.000 title claims abstract description 6
- 238000006555 catalytic reaction Methods 0.000 title claims abstract description 6
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims abstract description 44
- 238000000034 method Methods 0.000 claims abstract description 22
- 239000011941 photocatalyst Substances 0.000 claims abstract description 14
- 239000004408 titanium dioxide Substances 0.000 claims abstract description 12
- 239000002131 composite material Substances 0.000 claims abstract description 9
- 238000004845 hydriding Methods 0.000 claims abstract description 9
- 238000001027 hydrothermal synthesis Methods 0.000 claims abstract description 8
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 5
- 229910052751 metal Inorganic materials 0.000 claims abstract description 5
- 239000002184 metal Substances 0.000 claims abstract description 5
- 239000002105 nanoparticle Substances 0.000 claims abstract description 5
- 229910052755 nonmetal Inorganic materials 0.000 claims abstract description 4
- 238000000746 purification Methods 0.000 claims abstract description 3
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 claims description 14
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 9
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 8
- UMGDCJDMYOKAJW-UHFFFAOYSA-N thiourea Chemical compound NC(N)=S UMGDCJDMYOKAJW-UHFFFAOYSA-N 0.000 claims description 8
- 238000001035 drying Methods 0.000 claims description 7
- 238000010438 heat treatment Methods 0.000 claims description 7
- 229910052739 hydrogen Inorganic materials 0.000 claims description 6
- 239000001257 hydrogen Substances 0.000 claims description 6
- 229910021645 metal ion Inorganic materials 0.000 claims description 6
- 238000005406 washing Methods 0.000 claims description 6
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims description 5
- 229910010413 TiO 2 Inorganic materials 0.000 claims description 5
- 239000004202 carbamide Substances 0.000 claims description 5
- 235000013877 carbamide Nutrition 0.000 claims description 5
- 150000001875 compounds Chemical class 0.000 claims description 4
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims description 3
- 229910052759 nickel Inorganic materials 0.000 claims description 3
- 239000010936 titanium Substances 0.000 claims description 3
- 229910052719 titanium Inorganic materials 0.000 claims description 3
- 239000007864 aqueous solution Substances 0.000 claims description 2
- 230000003197 catalytic effect Effects 0.000 claims description 2
- 229910052802 copper Inorganic materials 0.000 claims description 2
- 229910052742 iron Inorganic materials 0.000 claims description 2
- 239000002127 nanobelt Substances 0.000 claims description 2
- 239000002071 nanotube Substances 0.000 claims description 2
- 239000002070 nanowire Substances 0.000 claims description 2
- 150000002894 organic compounds Chemical class 0.000 claims description 2
- 239000002994 raw material Substances 0.000 claims description 2
- 229910001220 stainless steel Inorganic materials 0.000 claims description 2
- 239000010935 stainless steel Substances 0.000 claims description 2
- 229910052718 tin Inorganic materials 0.000 claims description 2
- 150000003608 titanium Chemical class 0.000 claims description 2
- 229910052721 tungsten Inorganic materials 0.000 claims description 2
- 229910052725 zinc Inorganic materials 0.000 claims description 2
- 229910003087 TiOx Inorganic materials 0.000 claims 1
- 239000008187 granular material Substances 0.000 claims 1
- 150000002843 nonmetals Chemical class 0.000 claims 1
- 239000012629 purifying agent Substances 0.000 claims 1
- HLLICFJUWSZHRJ-UHFFFAOYSA-N tioxidazole Chemical compound CCCOC1=CC=C2N=C(NC(=O)OC)SC2=C1 HLLICFJUWSZHRJ-UHFFFAOYSA-N 0.000 claims 1
- 150000002500 ions Chemical class 0.000 abstract description 9
- 230000000694 effects Effects 0.000 abstract description 6
- 230000001699 photocatalysis Effects 0.000 abstract description 3
- 230000008569 process Effects 0.000 abstract description 3
- 230000015572 biosynthetic process Effects 0.000 abstract 1
- 238000004519 manufacturing process Methods 0.000 abstract 1
- 230000001105 regulatory effect Effects 0.000 abstract 1
- 238000003786 synthesis reaction Methods 0.000 abstract 1
- WSFSSNUMVMOOMR-UHFFFAOYSA-N Formaldehyde Chemical compound O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 description 10
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 description 8
- 230000015556 catabolic process Effects 0.000 description 7
- 238000006731 degradation reaction Methods 0.000 description 7
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 6
- 238000013033 photocatalytic degradation reaction Methods 0.000 description 6
- 238000013019 agitation Methods 0.000 description 5
- 239000006227 byproduct Substances 0.000 description 5
- 201000010099 disease Diseases 0.000 description 5
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 5
- 239000007789 gas Substances 0.000 description 5
- 208000024891 symptom Diseases 0.000 description 5
- 235000019256 formaldehyde Nutrition 0.000 description 4
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Substances [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 4
- 238000003756 stirring Methods 0.000 description 4
- 238000012360 testing method Methods 0.000 description 4
- PNEYBMLMFCGWSK-UHFFFAOYSA-N Alumina Chemical compound [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 3
- 229910021529 ammonia Inorganic materials 0.000 description 3
- 238000005119 centrifugation Methods 0.000 description 3
- 229960000935 dehydrated alcohol Drugs 0.000 description 3
- 238000009413 insulation Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- CXKWCBBOMKCUKX-UHFFFAOYSA-M methylene blue Chemical compound [Cl-].C1=CC(N(C)C)=CC2=[S+]C3=CC(N(C)C)=CC=C3N=C21 CXKWCBBOMKCUKX-UHFFFAOYSA-M 0.000 description 3
- 229960000907 methylthioninium chloride Drugs 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 239000002114 nanocomposite Substances 0.000 description 3
- PXHVJJICTQNCMI-UHFFFAOYSA-N nickel Substances [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 3
- 239000000047 product Substances 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 208000011580 syndromic disease Diseases 0.000 description 3
- 238000002604 ultrasonography Methods 0.000 description 3
- 238000010792 warming Methods 0.000 description 3
- 229910052724 xenon Inorganic materials 0.000 description 3
- FHNFHKCVQCLJFQ-UHFFFAOYSA-N xenon atom Chemical compound [Xe] FHNFHKCVQCLJFQ-UHFFFAOYSA-N 0.000 description 3
- PMZURENOXWZQFD-UHFFFAOYSA-L Sodium Sulfate Chemical compound [Na+].[Na+].[O-]S([O-])(=O)=O PMZURENOXWZQFD-UHFFFAOYSA-L 0.000 description 2
- 239000002253 acid Substances 0.000 description 2
- 238000003915 air pollution Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- VCJMYUPGQJHHFU-UHFFFAOYSA-N iron(3+);trinitrate Chemical compound [Fe+3].[O-][N+]([O-])=O.[O-][N+]([O-])=O.[O-][N+]([O-])=O VCJMYUPGQJHHFU-UHFFFAOYSA-N 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 239000010446 mirabilite Substances 0.000 description 2
- 239000011259 mixed solution Substances 0.000 description 2
- SOQBVABWOPYFQZ-UHFFFAOYSA-N oxygen(2-);titanium(4+) Chemical compound [O-2].[O-2].[Ti+4] SOQBVABWOPYFQZ-UHFFFAOYSA-N 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 239000002243 precursor Substances 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 208000024172 Cardiovascular disease Diseases 0.000 description 1
- 206010015946 Eye irritation Diseases 0.000 description 1
- 206010019233 Headaches Diseases 0.000 description 1
- 208000004023 Legionellosis Diseases 0.000 description 1
- 208000035353 Legionnaires disease Diseases 0.000 description 1
- 208000007764 Legionnaires' Disease Diseases 0.000 description 1
- 206010058467 Lung neoplasm malignant Diseases 0.000 description 1
- 229910002651 NO3 Inorganic materials 0.000 description 1
- 206010028767 Nasal sinus cancer Diseases 0.000 description 1
- 206010028980 Neoplasm Diseases 0.000 description 1
- 241001597008 Nomeidae Species 0.000 description 1
- 206010035718 Pneumonia legionella Diseases 0.000 description 1
- 206010057190 Respiratory tract infections Diseases 0.000 description 1
- 206010041349 Somnolence Diseases 0.000 description 1
- 230000002159 abnormal effect Effects 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 150000001412 amines Chemical class 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 201000011510 cancer Diseases 0.000 description 1
- 230000000711 cancerogenic effect Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 231100000315 carcinogenic Toxicity 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 238000005034 decoration Methods 0.000 description 1
- 230000000994 depressogenic effect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 231100000013 eye irritation Toxicity 0.000 description 1
- 231100000869 headache Toxicity 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 238000000703 high-speed centrifugation Methods 0.000 description 1
- 150000002431 hydrogen Chemical class 0.000 description 1
- 238000003905 indoor air pollution Methods 0.000 description 1
- 230000002045 lasting effect Effects 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 229910052750 molybdenum Inorganic materials 0.000 description 1
- 210000004877 mucosa Anatomy 0.000 description 1
- 201000010762 nasal cavity neoplasm Diseases 0.000 description 1
- SPIFDSWFDKNERT-UHFFFAOYSA-N nickel;hydrate Chemical compound O.[Ni] SPIFDSWFDKNERT-UHFFFAOYSA-N 0.000 description 1
- 230000008520 organization Effects 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 150000002989 phenols Chemical class 0.000 description 1
- 239000011120 plywood Substances 0.000 description 1
- 229910052573 porcelain Inorganic materials 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 230000035943 smell Effects 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- -1 wallpaper Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J23/00—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00
- B01J23/70—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of the iron group metals or copper
- B01J23/74—Iron group metals
- B01J23/745—Iron
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
- B01D53/86—Catalytic processes
- B01D53/8668—Removing organic compounds not provided for in B01D53/8603 - B01D53/8665
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J21/00—Catalysts comprising the elements, oxides, or hydroxides of magnesium, boron, aluminium, carbon, silicon, titanium, zirconium, or hafnium
- B01J21/06—Silicon, titanium, zirconium or hafnium; Oxides or hydroxides thereof
- B01J21/063—Titanium; Oxides or hydroxides thereof
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J23/00—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00
- B01J23/70—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of the iron group metals or copper
- B01J23/74—Iron group metals
- B01J23/755—Nickel
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J35/00—Catalysts, in general, characterised by their form or physical properties
- B01J35/30—Catalysts, in general, characterised by their form or physical properties characterised by their physical properties
- B01J35/39—Photocatalytic properties
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2255/00—Catalysts
- B01D2255/20—Metals or compounds thereof
- B01D2255/207—Transition metals
- B01D2255/20707—Titanium
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2255/00—Catalysts
- B01D2255/80—Type of catalytic reaction
- B01D2255/802—Photocatalytic
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2258/00—Sources of waste gases
- B01D2258/06—Polluted air
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2259/00—Type of treatment
- B01D2259/45—Gas separation or purification devices adapted for specific applications
- B01D2259/4508—Gas separation or purification devices adapted for specific applications for cleaning air in buildings
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Environmental & Geological Engineering (AREA)
- Health & Medical Sciences (AREA)
- Biomedical Technology (AREA)
- Analytical Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Catalysts (AREA)
Abstract
The invention discloses indoor air purification agent of a kind of efficient white light catalysis and preparation method thereof, described white light photocatalyst refers to the metal of surface hydriding and the composite titanium dioxide nano-particle of nonmetal codope.The preparation method of described composite titanium dioxide nano-particle is hydro-thermal method and the synthesis of surface hydriding two-step method.The present invention is by combining ion doping and two kinds of modified methods of surface hydriding, play both synergism, the energy gap of titanium dioxide is regulated and controled, make photocatalyst be provided with stronger photocatalytic activity at ultraviolet region and visible region, under daylight lamp irradiates, room air is had the effect of significantly purification.Air purifying preparation prepared by this method has low cost, process controllability is strong and is prone to the features such as industrialized production.
Description
Technical field
The invention belongs to nano-photo catalytic and air cleaning research field, be specifically related to nano titania composite photocatalyst
The preparation method of agent.
Background technology
The all one's life 70% ~ 90% of people is spent in indoor, but along with the raising of people's living standard and house decorative material
Variation, room air pollution grows in intensity the most therewith.Indoor environment is broadly divided into two big types to healthy impact: a kind of
Referred to as harmful building syndrome (being called for short SBS), another kind of referred to as harmful building syndrome (being called for short BRI).Harmful building is combined
Close the symptom that disease (SBS) refers to there will be during live and work in building.Cardinal symptom shows themselves in that attention does not collects
In, depressed, drowsiness, tired, headache, worried abnormal smells from the patient, easy catching a cold, uncomfortable in chest, mucosa, skin, eye irritation etc..Once leave this
Environment, symptom can alleviate or disappear by nature.Building relevant disease (BRI) refers to owing to Architectural foundation, design, selection are improper,
Cause the bad disease caused of IAQ (indoor air quality), mainly have respiratory tract infection, cardiovascular disease, legionnaires disease and various cancer
(such as pulmonary carcinoma).Have left the environment causing building relevant disease, symptom also will not disappear.Either harmful building syndrome, also
It is building relevant disease, all can improve IAQ (indoor air quality) by improving living environment, thus reduce the generation of these symptoms
Rate.
" formaldehyde is carcinogenic " publication of one of No. 153 indoor polluted gas that the World Health Organization (WHO) issues formaldehyde is pointed out,
Formaldehyde not only can cause tumor of nasal cavity and nasal sinus cancer, and have strongly but the most insufficient proof show can also leukemogenesis.Room
Internal contamination gas derive from interior decoration furniture and material, such as plywood, wallpaper, paint, coating, binding agent etc., wherein
Residual or decomposition harmful gas out can gradually discharge in surrounding, and maximum disengagement time is up to the more than ten years.How to have
Effect eliminates room air pollution, how to provide comfortable, a safe living environment to habitant, has become as urgently to be resolved hurrily
Major issue.
The product of a lot of purifying formaldehydes on China market, is all to use active carbon adsorption, amine derivant or many
The chemical removal method of phenol derivatives, quasiconductor carry associated materials photocatalytic degradation method etc..With absorption method, chemical removal method etc.
Comparing, photocatalytic degradation method has lasting effect, will not produce secondary pollution after pollution degradation gas, and to environment and human body
Non-hazardous, the indoor polluted gas cleanser exploitation of photocatalytic degradation method receives more and more attention.But room light at present
The actual effect of catalysis is the most extremely limited, and the actual requirement from people also has bigger gap.
The present invention, by ion doping and two kinds of modified methods of surface hydriding being combined, plays both synergism, has
The energy gap of effect regulation and control titanium dioxide, makes nano composite photo-catalyst be provided with stronger light at ultraviolet region and visible region
Catalysis activity, can play obvious purification under the irradiation of daylight lamp, have broad application prospects room air.
Summary of the invention
It is an object of the invention to provide the preparation method of a kind of titanic oxide nano compound photocatalyst, efficiently solve indoor
Air pollution problems inherent.In conjunction with hydro-thermal method and surface hydriding method, make nano composite photo-catalyst equal at ultraviolet region and visible region
There is stronger photocatalytic activity, notable to room air clean-up effect under daylight lamp irradiates.
Further, the preparation method of above-mentioned nano titania recombined white light indoor air purification, key step is such as
Under:
A, prepare TiO 2 sol system, be separately added into a certain amount of Fe, Co, Ni, Cu, Zn, Sn, W or Mo etc. wherein
Soluble-salt, and a certain amount of carbamide, thiourea or tripolycyanamide etc. are containing nonmetallic organic compound, stir 3 under heating ~
5h, obtains mixed system A；
B, system A is carefully moved in stainless steel cauldron, prepare metal and the titanium dioxide of nonmetal codope by hydro-thermal method
Titanium nano-particle, hydrothermal temperature is 150 ~ 180 C, and the hydro-thermal time is 8 ~ 24h, is divided through high speed centrifugation by product after off-test
From, washing and alcohol are washed 3 times respectively, obtain system B after being dried 4 ~ 6h in electric drying oven with forced convection under 80 C；
C, by above-mentioned photocatalyst raw material, during i.e. system B is laid in aluminium oxide porcelain boat, insert in tube-type atmosphere furnace, evacuation is complete
Bi Hou, is filled with a certain amount of hydrogen, carries out surface hydriding at different conditions, and wherein temperature is 200 ~ 600 C, and the time is
30min ~ 24h, obtains nano combined white light-catalysed air purifying preparation.
TiO 2 sol of the present invention can be prepared by titanium salt or organic titanium-containing compound, or by business nanometer
Titanium dioxide or Titanium dioxide nanoparticle, nano wire, nano belt and the nanotube etc. of preparation in advance, at the aqueous solution of certain proportioning
In ultrasonic preparation.
Metal ion mixing of the present invention can be one or more in described metal ion, is usually no more than
3 kinds.
Of the present invention nonmetallic ion-doped can come real by any one in carbamide, thiourea and tripolycyanamide
Existing.
Appointing during the alr mode of mixed system A can be mechanical agitation, magnetic agitation, ultrasonic hybrid mode in the present invention
Meaning one, or ultrasonic and first two combination.
The present invention compares the method for existing common nano composite photo-catalyst, has the advantages that
(1) process controllability is strong.Titanium oxide sol preparation technology is simple, follow-up hydro-thermal reaction metal ion and nonmetallic ion
Codope pilot process is few, and doping component and content regulation and control are convenient, adulterate effective, can enter in the future in large-scale water heating kettle
OK, easy to operate, it is suitable for industrialized popularization and produces.
(2) two kinds of method of modifying of ion doping and surface hydriding combine, and ion doping is metal ion and Fei Jin
Belonging to the doping of ion, this modification strategies yet there are no substantially report, has the novelty in method.
(3) the nano combined white light photocatalyst photoresponse wide ranges prepared by, photocatalytic activity is strong, and powder body appearance is with former
Titanium oxide sol has obvious inheritance, and chemical stability is high.
Detailed description of the invention
The present invention is further described below with reference to embodiment:
Embodiment 1:
By commercially available for 5g Nanometer Titanium Dioxide (titanium dioxide), particle diameter 15 ~ 50nm, add 70ml water and dehydrated alcohol (volume ratio 2:5) mixes
Close and solution stirs under ultrasound condition 1h prepare titanium oxide sol, be then respectively adding 0.5ml ammonia, 0.4g nine water ferric nitrate,
0.2g carbamide, continues ultrasonic agitation 6h and obtains mixture A；Then A is poured in 100ml rustless steel water heating kettle, at freeze-day with constant temperature
Case is warming up to 180 DEG C of insulation 12h with the speed of 3 DEG C/min, then by product centrifugation, is washed with deionized three respectively
Secondary, absolute ethanol washing three times, is dried 5h, before preparing ion co-doped titanium oxide in drying baker by products therefrom at 80 DEG C
Drive body B；Finally B is hydrogenated at 500 DEG C in hydrogen atmosphere stove 3h, obtains composite photo-catalyst.
With 500W xenon lamp for simulated solar radiant, with solar energy measuring instrument, intensity is adjusted to AM1.5, uses outside exposure method pair
Methylene blue carries out photocatalytic degradation test according to weight ratio 0.1%, and the degradation rate of 2h reaches 98.2%, and P25 under equal conditions
Degradation rate then only 71.5%.
Embodiment 2:
By 5g titanium dioxide nano thread standby for project team system, diameter about 10nm, add 70ml water and dehydrated alcohol (volume ratio 2:5)
Mixed solution stirs under ultrasound condition 1h and prepares titanium oxide sol, be then respectively adding 0.5ml ammonia, the acid of 0.4g nine liquid glauber salt
Ferrum, 0.2g carbamide, continue ultrasonic agitation 6h and obtain mixture A；Then A is poured in 100ml rustless steel water heating kettle, do at constant temperature
Dry case is warming up to 180 DEG C of insulation 12h with the speed of 3 DEG C/min, then by product centrifugation, is washed with deionized respectively
Three times, absolute ethanol washing three times, be dried products therefrom 5h in drying baker, prepare ion co-doped titanium oxide at 80 DEG C
Precursor B；Finally B is hydrogenated at 500 DEG C in hydrogen atmosphere stove 3h, obtains composite titanium dioxide nano wire photocatalyst.
With 500W xenon lamp for simulated solar radiant, with solar energy measuring instrument, intensity is adjusted to AM1.5, uses outside exposure method pair
Methylene blue carries out photocatalytic degradation test according to weight ratio 0.1%, and the degradation rate of 2h reaches 99.4%, hence it is evident that higher than embodiment 1
The degradation rate of 98.2% of the composite nanometer particle prepared by.Reason may have high carrier owing to one-dimensional titanium oxide
Efficiency of transmission etc..
Embodiment 3:
By 5g titanium dioxide nano thread standby for project team system, diameter about 10nm, add 70ml water and dehydrated alcohol (volume ratio 2:5)
Mixed solution stirs under ultrasound condition 1h and prepares titanium oxide sol, be then respectively adding 0.5ml ammonia, the acid of 0.2g nine liquid glauber salt
Ferrum, 0.15g six water nickel nitrate and 0.3g thiourea, continue ultrasonic agitation 5h and obtain mixture A；Then A is poured into 100ml rustless steel
In water heating kettle, in thermostatic drying chamber, it is warming up to 180 DEG C of insulation 12h with the speed of 3 DEG C/min, then by product centrifugation,
It is washed with deionized three times, absolute ethanol washing three times respectively, products therefrom is dried at 80 DEG C in drying baker 5h, prepares
Ion co-doped titania precursor body B；Finally B is hydrogenated at 500 DEG C in hydrogen atmosphere stove 3h, obtains composite titanium dioxide
Nano wire photocatalyst.
With 500W xenon lamp for simulated solar radiant, with solar energy measuring instrument, intensity is adjusted to AM1.5, uses outside exposure method pair
Methylene blue carries out photocatalytic degradation test according to weight ratio 0.1%, and the degradation rate of 2h reaches 99.6%, made with embodiment 2
The degradation rate of standby composite nano-line is compared and is slightly improved.Reason may be owing to ferrum and the doping etc. of nickel metal ion.
Claims (5)
1. indoor air purification agent of an efficient white light catalysis and preparation method thereof, it is characterised in that: hydro-thermal method and hydrogenization method
The two-step method combined carries out the preparation of titanic oxide nano compound photocatalyst, is mainly used in the purification of room air；Main
Want step as follows:
A, prepare TiO 2 sol, add metal ion and containing nonmetallic organic compound, be mixed with system A；
B, by system A move into stainless steel cauldron, prepare metal and the nano titania of nonmetal codope by hydro-thermal method
Granule, and product is washed through washing and alcohol, obtain system B after drying；
C, by above-mentioned photocatalyst raw material, i.e. system B, insert and in hydrogen atmosphere stove, carry out surface hydriding at different conditions
Obtain nano combined white light catalytic air purification agent.
The preparation method of nano titania composite air purifying agent the most according to claim 1, it is characterised in that: first
Preparing TiO 2 sol, be subsequently adding metal soluble-salt, wherein metal species includes Fe, Co, Ni, Cu, Zn, Sn, W and Mo
Deng, can be therein one or both；Non-metal organic compound, including: carbamide, thiourea, tripolycyanamide etc..
The preparation method of nano combined air purifying preparation the most according to claim 1, it is characterised in that: TiO 2 sol
Can be prepared by titanium salt or organic titanium-containing compound, or by business nanometer titanium dioxide or the TiOx nano of preparation in advance
Grain, nano wire, nano belt and nanotube etc., ultrasonic preparation in the aqueous solution of certain proportioning.
The preparation method of nano combined air purifying preparation the most according to claim 1, it is characterised in that: utilize hydro-thermal method to exist
Carrying out hydro-thermal heating in water heating kettle at different temperatures, temperature is 150 ~ 180 C, and the time is 8-24h；
The preparation method of nano combined air purifying preparation the most according to claim 1, it is characterised in that: surface hydriding be by
The brilliant fully washing of nano-particle prepared through hydro-thermal method is placed in vacuum type stove after drying, carries out table under certain atmosphere of hydrogen
Face hydrogenates, and temperature is 200 ~ 600 C, and the time is 30min ~ 24h.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610469094.6A CN106179344A (en) | 2016-06-25 | 2016-06-25 | A kind of indoor air purification agent of efficient white light catalysis and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610469094.6A CN106179344A (en) | 2016-06-25 | 2016-06-25 | A kind of indoor air purification agent of efficient white light catalysis and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106179344A true CN106179344A (en) | 2016-12-07 |
Family
ID=57461073
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610469094.6A Pending CN106179344A (en) | 2016-06-25 | 2016-06-25 | A kind of indoor air purification agent of efficient white light catalysis and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106179344A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110813360A (en) * | 2019-11-28 | 2020-02-21 | 吉林大学 | Nitrogen and sulfur doped black titanium dioxide/graphite phase carbon nitride composite photocatalyst and preparation method and application thereof |
| CN111715285A (en) * | 2020-06-08 | 2020-09-29 | 武汉纺织大学 | Metal-doped titanium dioxide photocatalytic degradation material for treating printing and dyeing wastewater and preparation method thereof |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04305290A (en) * | 1991-03-30 | 1992-10-28 | Shinshu Ceramics:Kk | Method for preventing and removing reddish water using thermally sprayed photocatalyst function material |
| CN105126796A (en) * | 2015-07-13 | 2015-12-09 | 华北电力大学 | Preparation method of fluorine-doped lamellar black titanium dioxide nano material |
-
2016
- 2016-06-25 CN CN201610469094.6A patent/CN106179344A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04305290A (en) * | 1991-03-30 | 1992-10-28 | Shinshu Ceramics:Kk | Method for preventing and removing reddish water using thermally sprayed photocatalyst function material |
| CN105126796A (en) * | 2015-07-13 | 2015-12-09 | 华北电力大学 | Preparation method of fluorine-doped lamellar black titanium dioxide nano material |
Non-Patent Citations (1)
| Title |
|---|
| 赵辉等: "不同金属离子与N共掺杂TiO2光催化剂的制备与性能表征", 《2010年全国太阳能光化学与光催化学术会议》 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110813360A (en) * | 2019-11-28 | 2020-02-21 | 吉林大学 | Nitrogen and sulfur doped black titanium dioxide/graphite phase carbon nitride composite photocatalyst and preparation method and application thereof |
| CN111715285A (en) * | 2020-06-08 | 2020-09-29 | 武汉纺织大学 | Metal-doped titanium dioxide photocatalytic degradation material for treating printing and dyeing wastewater and preparation method thereof |
| CN111715285B (en) * | 2020-06-08 | 2023-09-01 | 武汉纺织大学 | Metal-doped titanium dioxide photocatalytic degradation material for treating printing and dyeing wastewater and preparation method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103949278B (en) | Nitrogen-doped graphene/N doping TiO2the aluminum products of catalysis material coating | |
| CN108201789A (en) | A kind of preparation method of purifying formaldehyde material and application | |
| CN108745347A (en) | Pt atom carried titanium dioxide catalysis material and preparation method thereof | |
| CN107321375A (en) | A kind of SiO2/ZnO/g‑C3N4Nano material and its application in reduction of hexavalent chromium | |
| CN104307501B (en) | A kind of preparation method of the nano zine oxide as photochemical catalyst | |
| CN103212392A (en) | Method for preparing TiO2/kieselguhr composite photocatalytic material by using sol-gel method | |
| CN105107524A (en) | Nano-composite material for catalytically decomposing formaldehyde at normal temperature and method for preparing nano-composite material | |
| CN107519856A (en) | A kind of redox graphene/TiO2The preparation and application of composite photocatalyst material | |
| CN106824256A (en) | Degradation Formaldehyde catalyst and preparation method thereof | |
| CN102702807A (en) | Photo-catalytic composite coating and preparation method thereof | |
| CN108855175A (en) | A kind of formaldehyde light cleanser of neutrality and preparation method thereof | |
| CN102895972B (en) | Method for preparing negative ion material used for organic pollutant and sewage treatment and having photo-catalysis performance | |
| CN106423161A (en) | Preparation method of hydrogenation catalyst and catalyst | |
| CN106311304A (en) | Ultraviolet and visible light catalytic composite nanometer material and preparation and application thereof | |
| CN104264449A (en) | Antibiotic finishing method of silk fabric | |
| CN102784632A (en) | Preparation method for infusorial earth/ titanium dioxide composite photocatalyst with nuclear/shell structure | |
| CN106179344A (en) | A kind of indoor air purification agent of efficient white light catalysis and preparation method thereof | |
| CN107282083B (en) | Silicon-zinc-doped graphite-phase carbon nitride nano material and application thereof in photocatalytic reduction | |
| CN108753064A (en) | A kind of liquid shell powder paint and preparation method thereof | |
| CN106179372B (en) | A kind of C@Fe based on biomass porous carbon3O4The Preparation method and use of@Bi composite photo-catalyst | |
| CN102432064A (en) | Method for synthesizing nanometer titanium dioxide by reverse microemulsion carbon adsorption titanium tetrachloride hydrolytic system | |
| CN109482238A (en) | A kind of titanous-titanium dioxide-porphyrin/nitridation carbon composite photocatalyst and preparation method thereof | |
| CN103611524A (en) | Photo-thermal coupling adsorption reaction type sterilization material | |
| CN102863834A (en) | Modified nano-cuprous oxide coating additive and preparation method thereof | |
| CN105129903A (en) | Titanium dioxide sieve for photocatalytic treatment of phenol-containing wastewater |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20161207 |