Abstract
Previous reports indicate that the catalyst CdxZn1−xS shows good activity and reliability in the process of photocatalytic hydrogen production. However, it is still a challenge to design a cost-effective catalyst to replace the traditional CdxZn1−xS. In this work, Roman broccoli Cd0.8Zn0.2S-2 was successfully prepared through reasonable adjustment and control of the amount of raw materials. In the photocatalytic hydrogen evolution test, the amount of hydrogen evolution of CZS-2 was 1.24, 1.34, 2.06, and 2.24 times that of CZS-1, CZS-3, CZS-4, and CZS-5, respectively. This is because Cd0.8Zn0.2S-2 has more excellent synergy inside. Theoretical and experimental studies show that, based on rational design, the optical and electrical properties of the CZS-2 structure have been substantially improved (based on UV–Visible diffusion and photoluminescence). The mechanism of the study shows that the photocatalytic hydrogen evolution activity of CZS-2 is effectively improved due to the favorable energy band of effective charge transfer inside CZS-2. In this work, Roman broccoli-like CZS-2 provides a new research direction for photocatalytic water decomposition.
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Acknowledgements
This work was supported by the Natural Science Foundation of Ningxia Province (NZ17262). This work also was financially supported by the New Catalytic Process in Clean Energy Production (ZDZX201803), the Open Project of State Key Laboratory of High-efficiency Utilization of Coal and Green Chemical Engineering, Ningxia University (2019-KF-36).
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Li, L., Xu, J., Li, X. et al. Reasonable design of roman cauliflower photocatalyst Cd0.8Zn0.2S, high-efficiency visible light induced hydrogen generation. J Mater Sci: Mater Electron 31, 10657–10668 (2020). https://doi.org/10.1007/s10854-020-03615-0
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DOI: https://doi.org/10.1007/s10854-020-03615-0