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Rare Metals

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26-08-2019

Visible light response ZnO–C₃N₄ thin film photocatalyst

Authors: Yue Zhang, Shu-Man Zhao, Qi-Wen Su, Jun-Li Xu

Published in: Rare Metals | Issue 1/2021

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Abstract

Nanoflower-like ZnO–C₃N₄ thin film with a porous net structure was successfully synthesized by a simple chemical corrosion method. The prepared ZnO–C₃N₄ thin films presented remarkable photocatalytic activities for the degradation of methyl orange under visible light irradiation, and more than 90% methyl orange was removed from water by ZnO–C₃N₄ composite. Meanwhile, the ZnO–C₃N₄ composite presented an enhanced photocatalytic stability. The loading content of C₃N₄ had a great effect on the photocatalytic performance. Moreover, the photocatalytic activities were higher in acidic media than those in alkaline conditions. The adsorption of methyl orange was enhanced, and the recombination of photogenerated electrons and holes was suppressed with a suitable content of C₃N₄. However, too much loading content of C₃N₄ resulted in a poor dispersion of C₃N₄ as the aggregated C₃N₄ can behave as recombination centers. In addition, the prepared ZnO–C₃N₄ thin film can be used for the water splitting in water–methanol system under simulated solar light irradiation.

previous article Co and N co-modified carbon nanotubes as efficient electrocatalyst for oxygen reduction reaction

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Title: Visible light response ZnO–C3N4 thin film photocatalyst
Authors: Yue Zhang
Shu-Man Zhao
Qi-Wen Su
Jun-Li Xu
Publication date: 26-08-2019
Publisher: Nonferrous Metals Society of China
Published in: Rare Metals / Issue 1/2021
Print ISSN: 1001-0521
Electronic ISSN: 1867-7185
DOI: https://doi.org/10.1007/s12598-019-01297-0

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