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Semiconductor Photocatalysts for Solar-to-Hydrogen Energy Conversion: Recent Advances of CdS
Current Analytical Chemistry ( IF 1.8 ) Pub Date : 2021-05-31 , DOI: 10.2174/1573411016666200106103712
Yuxue Wei 1 , Honglin Qin 1 , Jinxin Deng 1 , Xiaomeng Cheng 1 , Mengdie Cai 1 , Qin Cheng 1 , Song Sun 1
Affiliation  

Background: Photocatalytic hydrogen evolution from water splitting using photocatalyst semiconductors is one of the most promising solutions to satisfy the increasing demands of a rapidly developing society. CdS has emerged as a representative semiconductor photocatalyst due to its suitable band gap and band position. However, the poor stability and rapid charge recombination of CdS restrict its application for hydrogen production. The strategy of using a cocatalyst is typically recognized as an effective approach for improving the activity, stability, and selectivity of photocatalysts.

Introduction: Solar-driven photocatalytic hydrogen production from water splitting is one of the most promising solutions to satisfy the increasing demands of a rapidly developing society. CdS has emerged as a representative semiconductor photocatalyst due to its suitable band gap and band position. However, the poor stability and rapid charge recombination of CdS restrict its application for hydrogen production. The strategy of using a cocatalyst is typically recognized as an effective approach for improving the activity, stability, and selectivity of photocatalysts. In this review, recent developments in CdS cocatalysts for hydrogen production from water splitting under visible-light irradiation are summarized. In particular, the factors affecting the photocatalytic performance and new cocatalyst design, as well as the general classification of cocatalysts, are discussed, which includes a single cocatalyst containing noble-metal cocatalysts, non-noble metals, metal-complex cocatalysts, metal-free cocatalysts, and multi-cocatalysts. Finally, future opportunities and challenges with respect to the optimization and theoretical design of cocatalysts toward the CdS photocatalytic hydrogen evolution are described.

Methods: This review summarizes the recent developments in CdS cocatalysts for hydrogen production from water splitting under visible-light irradiation.

Results: Recent developments in CdS cocatalysts for hydrogen production from water splitting under visible-light irradiation are summarized. The factors affecting the photocatalytic performance and new cocatalyst design, as well as the general classification of cocatalysts, are discussed, which includes a single cocatalyst containing noble-metal cocatalysts, non-noble metals, metal-complex cocatalysts, metal-free cocatalysts, and multi-cocatalysts. Finally, future opportunities and challenges with respect to the optimization and theoretical design of cocatalysts toward the CdS photocatalytic hydrogen evolution are described.

Conclusion: The state-of-the-art CdS for producing hydrogen from photocatalytic water splitting under visible light is discussed. The future opportunities and challenges with respect to the optimization and theoretical design of cocatalysts toward the CdS photocatalytic hydrogen evolution are also described.



中文翻译:

用于太阳能转化为氢能的半导体光催化剂:CdS的最新进展

背景:使用光催化剂半导体将水分解产生的光催化氢是满足快速发展的社会日益增长的需求的最有希望的解决方案之一。由于其合适的带隙和能带位置,CdS已经成为代表性的半导体光催化剂。但是,CdS的稳定性差和快速的电荷重组限制了其在制氢中的应用。通常认为使用助催化剂的策略是用于提高光催化剂的活性,稳定性和选择性的有效方法。

简介:由水分解产生的太阳能驱动的光催化制氢是满足快速发展的社会日益增长的需求的最有希望的解决方案之一。由于其合适的带隙和能带位置,CdS已经成为代表性的半导体光催化剂。但是,CdS的稳定性差和快速的电荷重组限制了其在制氢中的应用。通常认为使用助催化剂的策略是用于提高光催化剂的活性,稳定性和选择性的有效方法。在这篇综述中,总结了CdS助催化剂在可见光照射下由水分解制氢产生氢的最新进展。特别是影响光催化性能和新助催化剂设计的因素,还讨论了助催化剂的一般分类,包括单一助催化剂,其中包含贵金属助催化剂,非贵金属,金属络合物助催化剂,无金属助催化剂和多助催化剂。最后,描述了针对CdS光催化制氢的助催化剂的优化和理论设计方面的未来机遇和挑战。

方法:这篇综述总结了在可见光照射下从水分解产生氢气的CdS助催化剂的最新进展。

结果:总结了CdS助催化剂在可见光照射下由水分解制氢产生氢的最新进展。讨论了影响光催化性能和新型助催化剂设计的因素,以及助催化剂的一般分类,其中包括含有贵金属助催化剂,非贵金属,金属络合物助催化剂,无金属助催化剂的单一助催化剂,以及多助催化剂。最后,描述了针对CdS光催化制氢的助催化剂的优化和理论设计方面的未来机遇和挑战。

结论:讨论了在可见光下由光催化水分解产生氢气的最新CdS。还描述了针对CdS光催化制氢的助催化剂的优化和理论设计方面的未来机遇和挑战。

更新日期:2021-05-27
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