Z-scheme CdS/WO3 on a carbon cloth enabling effective hydrogen evolution
Received date: 21 Feb 2021
Accepted date: 31 May 2021
Published date: 15 Sep 2021
Copyright
Photocatalytic water splitting for hydrogen (H2) generation is a potential strategy to solve the problem of energy crisis and environmental deterioration. However, powder-like photocatalysts are difficult to recycle, and the agglomeration of particles would affect the photocatalytic activity. Herein, a direct Z-scheme CdS/WO3 composite photocatalyst was fabricated based on carbon cloth through a two-step process. With the support of carbon cloth, photocatalysts tend to grow uniformly for further applications. The experimental results showed that the H2 yield of adding one piece of CdS/WO3 composite material was 17.28 μmol/h, which was 5.5 times as compared to that of pure CdS-loaded carbon cloth material. A cycle experiment was conducted to verify the stability of the as-prepared material and the result demonstrated that the H2 generation performance of CdS/WO3 decreased slightly after 3 cycles. This work provides new ideas for the development of recyclable photocatalysts and has a positive significance for practical applications.
Key words: photocatalysis; CdS/WO3; carbon cloth; Z-scheme; hydrogen evolution
Zehong XU , Qiaohong ZHU , Xinguo XI , Mingyang XING , Jinlong ZHANG . Z-scheme CdS/WO3 on a carbon cloth enabling effective hydrogen evolution[J]. Frontiers in Energy, 2021 , 15(3) : 678 -686 . DOI: 10.1007/s11708-021-0768-6
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