期刊名称：International Journal of Environmental Science and Development
印刷版ISSN：2010-0264
出版年度：2015
卷号：6
期号：4
页码：286-291
DOI：10.7763/IJESD.2015.V6.605
摘要：AbstractPresent study deals with the photocatalytic degradation of low concentrations of VOCs like methanol, acetone, dichloromethane (DCM), benzene and toluene that are found in the pharmaceutical wastewater. The synthesized N doped TiO2 were used. N doped TiO2 with the reduced band gap energy of 2.91ev exhibited a complete degradation of the target VOCs in the presence of visible and sunlight. Kinetic study indicated that the rate of degradation of the target solvents was high in the presence of sunlight than when compared to visible irradiation. This may be due to the presence of the UV radiation in the natural sunlight. Irrespective of irradiation, the order of degradation of VOCs for the N doped TiO2 acetone. For mixed pollutant condition, individual pollutants followed similar degradation pattern as single pollutant system. This study has proven the suitability of photocatalysis as an alternative polishing treatment for pharmaceutical wastewaters.
关键词：Band gap energy; N doped TiO 2 ; pharmaceutical wastewater; visible light irradiation
