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Complementary behavior of doping and loading in Ag/C-ZnTa206 for efficient visible-light photocatalytic redox towards broad wastewater remediation

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Abstract

This work reports on the simple fabrication of a silver loaded and carbon doped zinc tantalate (Ag/ C-ZnTa206) photocatalyst with visible light photocatalytic activity toward broad wastewater remediation, ncluding high photo-reduction of Cr(vi) (98.4% in 210 min), excellent photo-oxidation of tetracycline hydrochloride (94.7% in 210 min), and superior photo-degradation of multiple dyes (>99.0% within 210 min). The optimal photocatalytic performance of Ag/C-ZnTa206 is mainly due to the excellent visible light absorption capacity and superior electron-hole separation efficiency, which is ascribed to the complementary behavior between carbon doping and silver loading. Particularly, the generation of defects due to C-doping is greatly inhibited by Ag-loading, and the SPR effect of Ag nanoparticles is enhanced due to the obstruction of Ag+ by C doping.

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  1. Inner Mongolia Key Laboratory of Chemistry and Physics of Rare Earth Materials, School of Chemistry and Chemical Engineering, Inner Mongolia University, 010021, Hohhot, China

    Niri Wu, Ping Bai, Ting Yang, Hui Li, Jingyu Zhang, Zhanli Chai & Xiaojing Wang

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  1. Niri Wu
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Correspondence to Zhanli Chai.

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Wu, N., Bai, P., Yang, T. et al. Complementary behavior of doping and loading in Ag/C-ZnTa206 for efficient visible-light photocatalytic redox towards broad wastewater remediation. Photochem Photobiol Sci 19, 1042–1053 (2020). https://doi.org/10.1039/d0pp00056f

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