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Photocatalytic oxygen reduction reaction over copper-indium-sulfide modified polymeric carbon nitride S-scheme heterojunction photocatalyst

Yunxiao Zhang,Xia Chen, Yuhai Ye,Jiazhi Chen

Journal of Catalysis（2023）

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Abstract
•A novel step-scheme (S-scheme) heterojunction copper-indium-sulfide-modified polymeric carbon nitride (CuInS2/PCN) photocatalyst was synthesized.•CuInS2/PCN possess efficient charge separation and strong redox abilities based on S-scheme heterojunctions.•Superior photocatalytic hydrogen peroxide evolution performance over CuInS2/PCN was achieved under visible light irradiation.•S-scheme charge transfer mechanism between PCN and CuInS2 was verified by photo-irradiated Kelvin probe force measurement.
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Key words
S-scheme heterojunction,Copper-indium-sulfide,Polymeric carbon nitride,Oxygen reduction reaction,H2O2 evolution
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