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Open AccessArticle

CuInS2/Mg(OH)2 Nanosheets for the Enhanced Visible-Light Photocatalytic Degradation of Tetracycline

1
College of Chemistry and Chemical Engineering, Neijiang Normal University, Neijiang 641100, China
2
Key Laboratory of Comprehensive and Highly Efficient Utilization of Salt Lake Resources, Key Laboratory of Salt Lake Resources Chemistry of Qinghai Province, Qinghai Institute of Salt Lakes, Chinese Academy of Sciences, Xining 810008, Qinghai, China
3
State Key Laboratory of Water Environment Simulation, School of Environment, Beijing Normal University, Beijing 100875, China
*
Authors to whom correspondence should be addressed.
Nanomaterials 2019, 9(11), 1567; https://doi.org/10.3390/nano9111567
Received: 9 October 2019 / Revised: 31 October 2019 / Accepted: 1 November 2019 / Published: 5 November 2019
CuInS2/Mg(OH)2 (CIS/Mg(OH)2) nanosheets have been prepared for the visible light activated photodegradation of tetracycline hydrochloride (TCH). The introduction of CuInS2 has proven to enhance the photocatalytic activity of Mg(OH)2 nanosheets. It’s ascribed to the enhanced transfer and separation of charge carriers at the junction interface between CuInS2 and Mg(OH)2. The photocatalytic activity of obtained CIS/Mg(OH)2 is greatly affected by CuInS2 content, pH value, and inorganic ions. Among these samples, 2-CIS/Mg(OH)2 exhibits the excellent photocatalytic activity and durability for the visible light driven removal of TCH after five cycle times. Atomic force microscope (AFM) images indicate that the surface roughness of 2-CIS/Mg(OH)2 is intensively influenced in adsorption-photocatalysis process. The •O2 and •OH radicals are vital for the visible light driven photocatalytic activity of 2-CIS/Mg(OH)2 for TCH removal. View Full-Text
Keywords: CuInS2/Mg(OH)2 nanosheets; heterojunction; tetracycline hydrochloride; photocatalysis CuInS2/Mg(OH)2 nanosheets; heterojunction; tetracycline hydrochloride; photocatalysis
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MDPI and ACS Style

Zheng, X.; Mao, Y.; Wen, J.; Fu, X.; Liu, X. CuInS2/Mg(OH)2 Nanosheets for the Enhanced Visible-Light Photocatalytic Degradation of Tetracycline. Nanomaterials 2019, 9, 1567.

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