Journal of Kerman University of Medical Sciences

Photocatalytic removal of o-chlorophenol by Using a Mixture of Modified Fly Ash and TiO2 Nanoparticles

Document Type : Original Article

Authors

Mohammad Malakootian 1
Alireza Mesdaghinia 2
Shima Rezaei 3

1 Professor, Environmental Health Engineering Research Center & Department of Environmental Health, School of Public Health, Kerman University of Medical Sciences, Kerman, Iran

2 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

3 MSc, Environmental Health Research Center, Kurdistan University of Medical Sciences, Sanandaj, Iran

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 TiO2 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 TiO2 nanoparticles was used for photocatalytic decomposition of o-chlorophenol.
Results: The percentage of carbon increased from 77.94% to 86.52% after acid washing of fly ash and absorption efficiency increased from 58.8% up to 83.3%. During the oxidation of acid washed fly ash, absorption efficiency reached to 93.27%. Photocatalytic removal efficiency of o-chlorophenol by mixture of modified fly ash and TiO2 increased to 98.9%. Photocatalytic removal efficiency of o-chlorophenol by TiO2/UV and without use of fly ash was 78.7%.
Conclusion: Industrial application of this method recommended because of the simple modification, high efficiency removal and prevention of environment pollution.
 

Keywords

Modified absorbent
Fly ash
O-chlorophenol
TiO2 nanoparticles
Photocatalytic
Mixture substance
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Journal of Kerman University of Medical Sciences
Volume 24, Issue 2
2017
Pages 147-158

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