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Visible-Light Photocatalytic Degradation of Aromatic Contaminants with Simultaneous H2 Generation: Comparison of 2,4-Dichlorophenoxyacetic Acid and 4-Chlorophenol

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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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Acknowledgment

National Science Foundation of China (No. 20207008) is acknowledged for the financial support. The authors wish to thank Profs. Sun C.L., Sun L.X. and Sun G.Q. for their help in the chemical analysis and DPV measurements.

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Authors and Affiliations

  1. Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, 116023, P.R. China

    Xianghua Zhang, Wenzhao Li, Hengyong Xu & Keli Han

  2. School of Chemistry and Chemical Engineering, Sun Yat-sen University, Guangzhou, 510275, P.R. China

    Hong Liu, Guofeng Cui & Qingping Long

Authors
  1. Xianghua Zhang
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  2. Hong Liu
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  3. Wenzhao Li
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  4. Guofeng Cui
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  7. Qingping Long
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Correspondence to Wenzhao Li.

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Zhang, X., Liu, H., Li, W. et al. Visible-Light Photocatalytic Degradation of Aromatic Contaminants with Simultaneous H2 Generation: Comparison of 2,4-Dichlorophenoxyacetic Acid and 4-Chlorophenol. Catal Lett 125, 371–375 (2008). https://doi.org/10.1007/s10562-008-9542-1

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  • DOI: https://doi.org/10.1007/s10562-008-9542-1

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