JP5775248B2 - 光触媒材料、有機物分解方法、内装部材、空気清浄装置、酸化剤製造装置 - Google Patents
光触媒材料、有機物分解方法、内装部材、空気清浄装置、酸化剤製造装置 Download PDFInfo
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- JP5775248B2 JP5775248B2 JP2008073930A JP2008073930A JP5775248B2 JP 5775248 B2 JP5775248 B2 JP 5775248B2 JP 2008073930 A JP2008073930 A JP 2008073930A JP 2008073930 A JP2008073930 A JP 2008073930A JP 5775248 B2 JP5775248 B2 JP 5775248B2
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- 239000000463 material Substances 0.000 title claims description 78
- 239000011941 photocatalyst Substances 0.000 title claims description 46
- 238000000034 method Methods 0.000 title claims description 17
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- 238000000354 decomposition reaction Methods 0.000 title description 11
- 239000005416 organic matter Substances 0.000 title description 6
- ZNOKGRXACCSDPY-UHFFFAOYSA-N tungsten trioxide Chemical compound O=[W](=O)=O ZNOKGRXACCSDPY-UHFFFAOYSA-N 0.000 claims description 106
- 239000010949 copper Substances 0.000 claims description 65
- 230000000694 effects Effects 0.000 claims description 48
- 230000001699 photocatalysis Effects 0.000 claims description 36
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 34
- 229910052802 copper Inorganic materials 0.000 claims description 34
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- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 22
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 description 20
- 238000006864 oxidative decomposition reaction Methods 0.000 description 18
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- 229910052760 oxygen Inorganic materials 0.000 description 14
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 description 12
- 238000006862 quantum yield reaction Methods 0.000 description 12
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- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 4
- OUUQCZGPVNCOIJ-UHFFFAOYSA-M Superoxide Chemical compound [O-][O] OUUQCZGPVNCOIJ-UHFFFAOYSA-M 0.000 description 4
- 230000008859 change Effects 0.000 description 4
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- 229910052757 nitrogen Inorganic materials 0.000 description 4
- 238000010525 oxidative degradation reaction Methods 0.000 description 4
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- KFZMGEQAYNKOFK-UHFFFAOYSA-N Isopropanol Chemical group CC(C)O KFZMGEQAYNKOFK-UHFFFAOYSA-N 0.000 description 3
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- IKHGUXGNUITLKF-UHFFFAOYSA-N Acetaldehyde Chemical compound CC=O IKHGUXGNUITLKF-UHFFFAOYSA-N 0.000 description 2
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- 229910021591 Copper(I) chloride Inorganic materials 0.000 description 2
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 2
- LSDPWZHWYPCBBB-UHFFFAOYSA-N Methanethiol Chemical compound SC LSDPWZHWYPCBBB-UHFFFAOYSA-N 0.000 description 2
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- 125000004433 nitrogen atom Chemical group N* 0.000 description 2
- QGLKJKCYBOYXKC-UHFFFAOYSA-N nonaoxidotritungsten Chemical compound O=[W]1(=O)O[W](=O)(=O)O[W](=O)(=O)O1 QGLKJKCYBOYXKC-UHFFFAOYSA-N 0.000 description 2
- 125000004430 oxygen atom Chemical group O* 0.000 description 2
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- GETQZCLCWQTVFV-UHFFFAOYSA-N trimethylamine Chemical compound CN(C)C GETQZCLCWQTVFV-UHFFFAOYSA-N 0.000 description 2
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- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
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Description
例えば、特許文献1には、酸化チタン結晶の酸素サイトの一部を窒素原子で置換した可視光活性を有する光触媒材料が開示されている。
2Cu(I)+O2+2H+ → 2Cu(II)+H2O2
:4電子還元
4Cu(I)+O2+4H+ → 4Cu(II)+2H2O
あるいは
3Cu(I)+O2+4H+ → 2Cu(II)+Cu(III)+2H2O
すなわち、三酸化タングステン上に担持された銅二価塩のCu(II)イオンは酸素の多電子還元触媒として作用する。
O2+e− → ・O2−
一方、本発明における光触媒材料は、可視光照射によって励起された光励起電子が、Cu(II)イオンを介して酸素の多電子還元に消費され、過酸化水素あるいは水を生成する。このように本発明の光触媒材料は、活性酸素種であるスーパーオキサイドアニオンを生成しないという安全面での利点もある。
WO3粉末(平均粒径250nm、(株)高純度化学研究所)をフィルターに通して粒径1μm以上の粒子を除去し、650℃で3時間焼成する前処理を行なうことによって、三酸化タングステン微粒子を得た。
三酸化タングステンの焼成前処理を行わなかったこと以外は実施例1と同様にして、評価用サンプルとなる銅二価塩担持三酸化タングステン微粒子を得た。
WO3粉末(平均粒径250nm、(株)高純度化学研究所)をフィルターに通して粒径1μmの粒子を除去し、650℃で3時間焼成することによって、評価用サンプルとなる三酸化タングステン微粒子を得た。
アナターゼ型酸化チタン(ST−01、石原産業(株))をアンモニア気流中(1SCCM)、550℃で3時間アニールすることによって、評価用サンプルとなる窒素ドープ酸化チタン微粒子を得た。
三酸化タングステン微粒子の代わりに、ルチル型TiO2粉末(MT−150A、TAYCA Co.,Ltd.)を用い、実施例1と同様にしてこのルチル型TiO2粉末に銅二価塩を担持させることによって、評価用サンプルとなる銅二価塩担持酸化チタン微粒子を得た。
上記のように実施例1〜2、比較例1〜3で得た評価サンプルについて、光触媒活性を、可視光照射下で2−プロパノール(IPA)が気相酸化分解される結果生じるアセトンおよびCO2濃度を定量することにより評価した。以下に詳細を示す。
Claims (5)
- 三酸化タングステン微粒子の表面に、銅二価塩を担持して成り、前記三酸化タングステン微粒子に担持された銅二価塩は、三酸化タングステンに対する銅元素の質量比率が、0.0001〜1%であり、前記三酸化タングステン微粒子の表面に担持された前記銅二価塩の陰イオンが、水酸イオンであり、前記三酸化タングステン微粒子の粒径は1μm以下であることを特徴とする可視光活性を有する光触媒材料。
- 請求項1に記載の可視光活性を有する光触媒材料に可視光を照射して、有機物を分解することを特徴とする有機物分解方法。
- 請求項1に記載の可視光活性を有する光触媒材料を、表層に含むことを特徴とする内装部材。
- 請求項1に記載の可視光活性を有する光触媒材料を使用して形成されたことを特徴とする空気清浄装置。
- 請求項1に記載の可視光活性を有する光触媒材料を使用して形成されたことを特徴とする酸化剤製造装置。
Priority Applications (8)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2008073930A JP5775248B2 (ja) | 2008-03-21 | 2008-03-21 | 光触媒材料、有機物分解方法、内装部材、空気清浄装置、酸化剤製造装置 |
KR1020107023493A KR20100126538A (ko) | 2008-03-21 | 2009-03-19 | 광촉매 재료, 유기물 분해 방법, 내장부재, 공기청정 장치, 산화제 제조 장치 |
KR1020127032020A KR101334970B1 (ko) | 2008-03-21 | 2009-03-19 | 광촉매 재료, 유기물 분해 방법, 내장부재, 공기청정 장치, 산화제 제조 장치 |
CN2009801101401A CN101977688B (zh) | 2008-03-21 | 2009-03-19 | 光催化剂材料、分解有机材料的方法、内部构件、空气净化装置和用于制备氧化剂的设备 |
PCT/JP2009/055452 WO2009116627A1 (ja) | 2008-03-21 | 2009-03-19 | 光触媒材料、有機物分解方法、内装部材、空気清浄装置、酸化剤製造装置 |
EP09721400.1A EP2258478B1 (en) | 2008-03-21 | 2009-03-19 | Photocatalyst material, method for decomposition of organic material, interior member, air purification device, and apparatus for production of oxidizing agent |
US12/736,209 US8536084B2 (en) | 2008-03-21 | 2009-03-19 | Photocatalyst material, method for decomposition of organic material, interior member, air purification device, and apparatus for preparation of oxidizing agent |
CA2718999A CA2718999C (en) | 2008-03-21 | 2009-03-19 | Photocatalyst material, method for decomposition of organic material, interior member, air purification device, and apparatus for preparation of oxidizing agent |
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JP5537356B2 (ja) * | 2009-10-14 | 2014-07-02 | 積水樹脂株式会社 | 光触媒、コーティング剤、内装材、及び光触媒の製造方法 |
JP5567828B2 (ja) * | 2009-11-30 | 2014-08-06 | パナソニック株式会社 | 可視光応答型光触媒コーティング材、コーティング処理物及びアレルゲン不活性化方法 |
WO2011102353A1 (ja) * | 2010-02-16 | 2011-08-25 | 昭和電工株式会社 | 銅イオンで修飾された酸化タングステン光触媒及びその製造方法 |
JP5765678B2 (ja) * | 2010-02-25 | 2015-08-19 | 三菱化学株式会社 | 光水分解反応用光触媒および光水分解反応用光触媒の製造方法 |
JP2012016679A (ja) * | 2010-07-09 | 2012-01-26 | Showa Denko Kk | 銅イオンで修飾された酸化タングステン系光触媒の分散液の製造方法 |
JP5209130B2 (ja) | 2011-06-07 | 2013-06-12 | 昭和電工株式会社 | 酸化タングステン系光触媒、及びその製造方法 |
JP5812488B2 (ja) | 2011-10-12 | 2015-11-11 | 昭和電工株式会社 | 抗菌抗ウイルス性組成物及びその製造方法 |
KR101426745B1 (ko) * | 2011-12-22 | 2014-08-13 | 쇼와 덴코 가부시키가이샤 | 동 및 티탄 함유 조성물 및 그 제조 방법 |
KR102166570B1 (ko) * | 2012-02-03 | 2020-10-16 | 아키다 홀딩스, 엘엘씨 | 공기 처리 시스템 |
JP2014193433A (ja) * | 2013-03-28 | 2014-10-09 | Yokohama National Univ | 可視光応答型ハイブリッド光触媒及びその製造方法 |
JP6237780B2 (ja) | 2013-10-16 | 2017-11-29 | 信越化学工業株式会社 | 酸化チタン・酸化タングステン複合光触媒微粒子分散液、その製造方法、及び光触媒薄膜を表面に有する部材 |
CN103752332B (zh) * | 2014-01-22 | 2016-09-07 | 玉林师范学院 | 柿饼状可见光催化剂BiOBr及其制备方法 |
JP7106268B2 (ja) * | 2017-12-14 | 2022-07-26 | 株式会社東芝 | 光触媒付基材およびその製造方法及び光触媒装置 |
CN111495382B (zh) * | 2020-03-24 | 2023-05-23 | 山西师范大学 | 铜/介孔三氧化钨复合催化剂及其制备方法和应用 |
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CN112778996B (zh) * | 2020-11-30 | 2022-09-23 | 天津孚信阳光科技有限公司 | 一种钨基复合材料及其制备方法与应用 |
KR20220095952A (ko) | 2020-12-30 | 2022-07-07 | 주식회사 비엔큐브 | 구리산화텅스텐 콜로이드를 포함하는 가시광 응답형 광촉매의 제조방법 및 이를 이용한 가시광 응답형 광촉매 |
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EP2258478A4 (en) | 2012-02-01 |
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