Parameters effect on heterogeneous photocatalysed degradation of phenolin aqueous dispersion of TiO_2

查看全文 作　　者：KASHIF [1]Naeem

机构地区：[1]Department of Urban and Civil Engineering, Harbin Institute of Technology, Shenzhen Graduate School

出　　处：《Journal of Environmental Sciences》索引2009年第21卷第4期,共7页

摘　　要：Photocatalytic degradation of phenol selected as model compound of organic pollutant had been investigated in aqueous titanium dioxide (TiO2) dispersion under UV irradiation. The effects of various parameters such as pH, catalyst concentration, phenol concentration, anions, metal ions, electron acceptors, and surfactants on the photocatalytic degradation of phenol were investigated. The degradation kinetics was determined by the change in phenol concentration employing UV-Vis spectrometry as a function of irradiation time. The degradation kinetics of phenol follows pseudo first-order kinetics. The results showed a significant dependence of the photocatalytic degradation of phenol on the functional parameters. The probable promising roles of the additives on the degradation process were discussed. 关键词：光催化降解二氧化钛水溶液苯酚分散催化剂浓度降解动力学异构

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Parameters effect on heterogeneous photocatalysed degradation of phenolin aqueous dispersion of TiO_2

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