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Complementary behavior of doping and loading in Ag/C-ZnTa2O6 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-ZnTa2O6) photocatalyst with visible light photocatalytic activity toward broad wastewater remediation, including 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-ZnTa2O6 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.

Graphical abstract: Complementary behavior of doping and loading in Ag/C-ZnTa2O6 for efficient visible-light photocatalytic redox towards broad wastewater remediation

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Article information


Submitted
21 Feb 2020
Accepted
11 Jun 2020
First published
12 Jun 2020

Photochem. Photobiol. Sci., 2020, Advance Article
Article type
Paper

Complementary behavior of doping and loading in Ag/C-ZnTa2O6 for efficient visible-light photocatalytic redox towards broad wastewater remediation

N. Wu, P. Bai, T. Yang, H. Li, J. Zhang, Z. Chai and X. Wang, Photochem. Photobiol. Sci., 2020, Advance Article , DOI: 10.1039/D0PP00056F

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