Visible-Light Photocatalytic Degradation of Aromatic Contaminants with Simultaneous H2 Generation: Comparison of 2,4-Dichlorophenoxyacetic Acid and 4-Chlorophenol |
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| Authors: | Xianghua Zhang Hong Liu Wenzhao Li Guofeng Cui Hengyong Xu Keli Han Qingping Long |
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| Affiliation: | 1. Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, 116023, P.R. China
2. School of Chemistry and Chemical Engineering, Sun Yat-sen University, Guangzhou, 510275, P.R. China
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| Abstract: | Aromatic contaminants, 2,4-dichlorophenoxyacetic acid (2,4-D) and 4-chlorophenol (4-CP), were photocatalytically degraded in aqueous solutions under visible light illumination. 2,4-D was degraded more rapidly with more amount of simultaneous hydrogen generation than 4-CP. This is due to their difference in oxidative potentials, hydrophobic effects, electrostatic interactions and chemisorptions on the photocatalyst 3%WO x /TiO2. |
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