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Reduced Graphene Oxide/ZnIn2S4 Nanocomposite Photocatalyst with Enhanced Photocatalytic Performance for the Degradation of Naproxen under Visible Light Irradiation

by Kun Fu 1,2, Yishuai Pan 1,2, Chao Ding 1,2, Jun Shi 1,2,3,* and Huiping Deng 1,2,3,*
1
Key Laboratory of Yangtze River Water Environment, Ministry of Education, Shanghai 200092, China
2
College of Environmental Science and Engineering, Tongji University, Shanghai 200092, China
3
Shanghai Institute of Pollution Control and Ecological Security, Shanghai 200092, China
*
Authors to whom correspondence should be addressed.
Catalysts 2020, 10(6), 710; https://doi.org/10.3390/catal10060710
Received: 4 June 2020 / Revised: 19 June 2020 / Accepted: 22 June 2020 / Published: 24 June 2020
The development of photocatalysts with visible light response is of great significance to cope with energy crisis and environmental remediation. In this study, a visible light-driven photocatalyst reduced graphene oxide/ZnIn2S4 (rGO/ZIS) was prepared by a facile one-pot hydrothermal method. The photocatalyst was used for the degradation of naproxen under visible light illumination and it exhibited remarkably degradation efficiency (nearly 99% within 60 min). The improved photocatalytic degradation performance can be attributed to the enhancement of light adsorption capacity and effective separation of photoinduced electron–hole pairs. The reactive species quenching experiments and EPR measurements demonstrated that superoxide radical (–O2) and hole (h+) play a dominant role in the photocatalytic degradation reactions. In addition, the degradation intermediates were identified and the degradation pathway was suggested. View Full-Text
Keywords: ZnIn2S4; visible light; photocatalyst; degradation; naproxen ZnIn2S4; visible light; photocatalyst; degradation; naproxen
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Fu, K.; Pan, Y.; Ding, C.; Shi, J.; Deng, H. Reduced Graphene Oxide/ZnIn2S4 Nanocomposite Photocatalyst with Enhanced Photocatalytic Performance for the Degradation of Naproxen under Visible Light Irradiation. Catalysts 2020, 10, 710.

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