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

Catalysts

Huiping Deng¹  Kun Fu¹  Yishuai Pan¹  Jun Shi¹  Chao Ding¹ 

[1] Key Laboratory of Yangtze River Water Environment, Ministry of Education, Shanghai 200092, China;

关键词: ZnIn₂S₄;    visible light;    photocatalyst;    degradation;    naproxen;   

DOI  :  10.3390/catal10060710

来源: DOAJ

【 摘 要 】

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.

【 授权许可】

Unknown