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Construction of CdS/CdSnO3 direct Z-scheme heterostructure for efficient tetracycline hydrochloride photodegradation by Min Zhang; Yunyuan Dong; Hongfei Yin; Xiaobin Chen is a Engineering article available to read on EtoBox.

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Photocatalytic technology is one of the promising methods for solving the environmental crisis caused by antibiotics. In this work, CdS/CdSnO3 direct Z-scheme heterojunctions were fabricated through soft-chemistry routes. Various characterizations were performed to analyze the intrinsic properties of the constructed photocatalysts. The photocatalytic activity of the as-prepared catalysts was assessed via tetracycline hydrochloride (TCH) photodegradation. Compared with the bare CdSnO3 and CdS, all the obtained CdS/CdSnO3 heterojunctions exhibited improved photocatalytic performance. Meanwhile, the kinetic constant of CdS/CdSnO3 heterojunction with optimized mass ratio was about 57.5 and 1.85 times as high as the bare CdSnO3 and CdS. The upgraded photocatalytic activity can be attributed to the enhanced light absorption and unique charge transfer path. Based on the systematic analysis, the possible direct Z-scheme photocatalytic mechanism was put forward.

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Author

Min Zhang; Yunyuan Dong; Hongfei Yin; Xiaobin Chen

Publisher

Elsevier BV

Published

2022

Language

EN

Field

Engineering (Physical Sciences)