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Article Abstract
Semiconductor photocatalysis technology is a promising method for hydrogen production and water pollution treatment. Here, the SnInS/CeO (SISC) composites were fabricated by a stirring and calcination method, and the mass ratio of SnInS to CeO was optimized. The 50 wt% SISC heterojunction photocatalyst has the highest visible light catalytic activity. The degradation rate of hexavalent chromium (Cr (VI)) is 98.8% in 75 min of light irradiation, which is 2.48 times that of pure CeO. Besides, the 50 wt% SISC composite photocatalyst also has the highest photocatalytic hydrogen production efficiency (0.6193 mmol g h), which exhibits a higher photocatalytic activity than pure CeO and SnInS. The enhanced photocatalytic performance can be attributed to the Z-scheme heterojunction structure between CeO and SnInS, which can effectively separate and transfer photo-generated charges, thereby reducing the recombination of photo-generated carriers. We hope this work can provide ideas for constructing Z-scheme heterojunction structures and improving photocatalytic activity under visible light.
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| http://dx.doi.org/10.1016/j.jhazmat.2021.126217 | DOI Listing |
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