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Nanostructured CdS for efficient photocatalytic H 2 evolution: A review
Science China Materials ( IF 6.8 ) Pub Date : 2020-10-10 , DOI: 10.1007/s40843-020-1456-x
Rongchen Shen , Doudou Ren , Yingna Ding , Yatong Guan , Yun Hau Ng , Peng Zhang , Xin Li

Cadmium sulfide (CdS)-based photocatalysts have attracted extensive attention owing to their strong visible light absorption, suitable band energy levels, and excellent electronic charge transportation properties. This review focuses on the recent progress related to the design, modification, and construction of CdS-based photocatalysts with excellent photocatalytic H2 evolution performances. First, the basic concepts and mechanisms of photocatalytic H2 evolution are briefly introduced. Thereafter, the fundamental properties, important advancements, and bottlenecks of CdS in photocatalytic H2 generation are presented in detail to provide an overview of the potential of this material. Subsequently, various modification strategies adopted for CdS-based photocatalysts to yield solar H2 are discussed, among which the effective approaches aim at generating more charge carriers, promoting efficient charge separation, boosting interfacial charge transfer, accelerating charge utilization, and suppressing charge-induced self-photocorrosion. The critical factors governing the performance of the photocatalyst and the feasibility of each modification strategy toward shaping future research directions are comprehensively discussed with examples. Finally, the prospects and challenges encountered in developing nanostructured CdS and CdS-based nanocomposites in photocatalytic H2 evolution are presented.



中文翻译:

纳米结构的CdS用于有效的光催化H 2释放:综述

硫化镉(CdS)基光催化剂由于其强大的可见光吸收能力,合适的能带能级以及出色的电子电荷传输性能而备受关注。这篇综述着重于与具有出色的光催化H 2放出性能的CdS基光催化剂的设计,改性和构造有关的最新进展。首先,简要介绍了光催化H 2逸出的基本概念和机理。此后,CdS在光催化H 2中的基本性质,重要进展和瓶颈详细介绍了这一世代,以概述这种材料的潜力。随后,讨论了基于CdS的光催化剂产生太阳能H 2的各种改性策略,其中有效的方法旨在产生更多的电荷载流子,促进有效的电荷分离,促进界面电荷转移,加速电荷利用,抑制电荷诱导自光腐蚀。通过实例全面讨论了控制光催化剂性能的关键因素以及每种修饰策略对塑造未来研究方向的可行性。最后,在光催化H 2中开发纳米结构化CdS和基于CdS的纳米复合材料时遇到的前景和挑战 进化。

更新日期:2020-10-13
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