Photocatalytic removal of o-chlorophenol by Using a Mixture of Modified Fly Ash and TiO۲ Nanoparticles
Publish Year: 1396
نوع سند: مقاله ژورنالی
زبان: English
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شناسه ملی سند علمی:
JR_JKMU-24-2_007
تاریخ نمایه سازی: 19 دی 1401
Abstract:
Abstract Background: Photocatalytic process is used as a suitable method for o-chlorophenol removal. In this study, the efficiency of a mixture of modified fly ash and TiO۲ nanoparticles in photocatalytic removal of o-chlorophenol was evaluated. Methods: After acid washing of fly ash, the absorbent was oxidized with potassium permanganate. Then, the substrate mixture of modified fly ash and TiO۲ nanoparticles was used for photocatalytic decomposition of o-chlorophenol. Results: The percentage of carbon increased from ۷۷.۹۴% to ۸۶.۵۲% after acid washing of fly ash and absorption efficiency increased from ۵۸.۸% up to ۸۳.۳%. During the oxidation of acid washed fly ash, absorption efficiency reached to ۹۳.۲۷%. Photocatalytic removal efficiency of o-chlorophenol by mixture of modified fly ash and TiO۲ increased to ۹۸.۹%. Photocatalytic removal efficiency of o-chlorophenol by TiO۲/UV and without use of fly ash was ۷۸.۷%. Conclusion: Industrial application of this method recommended because of the simple modification, high efficiency removal and prevention of environment pollution.
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Authors
Mohammad Malakootian
Professor, Environmental Health Engineering Research Center & Department of Environmental Health, School of Public Health, Kerman University of Medical Sciences, Kerman, Iran
Alireza Mesdaghinia
Professor, Department of Environmental Health Engineering, School of Public Health & Water Quality Research Centre, Institute for Environmental Research, Tehran University of Medical Sciences, Tehran, Iran
Shima Rezaei
MSc, Environmental Health Research Center, Kurdistan University of Medical Sciences, Sanandaj, Iran
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