Characterization, Degradation, and Reaction Pathways of Indoor Toluene over Visible-light-driven S, Zn Co-doped TiO2

2016 International Conference on Environmental Engineering and Sustainable Development

生态环境科学;经济学

Chu, H.^1 ; Lin, Y.H.^1,2 ; Lin, C.Y.^1

Department of Environmental Engineering, National Cheng Kung University, Tainan

70101, Taiwan^1

College of Ecology and Resource Engineering, Wuyi University, Fujian Wuyishan

354300, China^2

关键词: Degradation reaction;    Humid environment;    Operation conditions;    Oxidation products;    Possible mechanisms;    TiO2 photocatalyst;    Toluene conversion;    Visible-light-driven;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/51/1/012001/pdf
DOI  :  10.1088/1742-6596/51/1/012001

学科分类：环境科学（综合）

来源: IOP

【 摘 要 】

Sulfur and Zinc co-doped TiO2prepared by a sol-gel method to degrade toluene under a fluorescent lamp was investigated. The results indicate that S,Zn co-doped TiO2photocatalysts are mainly nano-size with an anatase phase structure. The degradation reactions of toluene were performed under various operation conditions. The results show that the toluene conversion increases with increasing toluene concentration and decreasing relative humidity. Based on the results of activity test, S0.05Zn0.001/TiO2was chosen for further studies. The main oxidation products of toluene photodegradation are CO2, H2O, benzyl alcohol, acetone, butadiene and acetic acid. Two possible mechanisms have been developed for photodegradation of toluene in a dry and a humid environment.