Emerging Trends in CdS-Based Nanoheterostructures: From Type-II and Z-Scheme toward S-Scheme Photocatalytic H₂ Production.

IF 7 2区化学 Q1 CHEMISTRY, MULTIDISCIPLINARY Chemical record Pub Date : 2024-10-17 DOI:10.1002/tcr.202400127

Ikram Ullah, Pei Zhao, Ning Qin, Shuai Chen, Jing-Han Li, An-Wu Xu

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Abstract

Cadmium sulfide (CdS) based heterojunctions, including type-II, Z-scheme, and S-scheme systems emerged as promising materials for augmenting photocatalytic hydrogen (H₂) generation from water splitting. This review offers an exclusive highlight of their fundamental principles, synthesis routes, charge transfer mechanisms, and performance properties in improving H₂ production. We overview the crucial roles of Type-II heterojunctions in enhancing charge separation, Z-scheme heterojunctions in promoting redox potentials to reduce electron-hole (e^-/h⁺) pairs recombination, and S-scheme heterojunctions in combining the merits of both type-II and Z-scheme frameworks to obtain highly efficient H₂ production. The importance of this review is demonstrated by its thorough comparison of these three configurations, presenting valuable insights into their special contributions and capability for augmenting photocatalytic H₂ activity. Additionally, key challenges and prospects in the practical applications of CdS-based heterojunctions are addressed, which provides a comprehensive route for emerging research in achieving sustainable energy goals.

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基于 CdS 的纳米异质结构的新趋势：从 II 型和 Z 型到 S 型光催化制取 H2。

基于硫化镉（CdS）的异质结，包括 II 型、Z 型和 S 型系统，已成为增强光催化水分裂产生氢气（H2）的有前途的材料。本综述独家重点介绍了它们的基本原理、合成路线、电荷转移机制以及在提高 H2 产率方面的性能特性。我们概述了 II 型异质结在增强电荷分离方面的关键作用，Z 型主题异质结在促进氧化还原电位以减少电子-空穴（e-/h+）对重组方面的关键作用，以及 S 型主题异质结在结合 II 型和 Z 型主题框架的优点以获得高效 H2 产能方面的关键作用。本综述的重要性体现在对这三种构型进行了全面比较，对它们在提高光催化 H2 活性方面的特殊贡献和能力提出了宝贵的见解。此外，还探讨了基于 CdS 的异质结在实际应用中面临的主要挑战和前景，为实现可持续能源目标的新兴研究提供了一条全面的途径。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Chemical record 化学-化学综合

CiteScore

11.00

自引率

3.00%

发文量

188

审稿时长

>12 weeks

期刊介绍： The Chemical Record (TCR) is a "highlights" journal publishing timely and critical overviews of new developments at the cutting edge of chemistry of interest to a wide audience of chemists (2013 journal impact factor: 5.577). The scope of published reviews includes all areas related to physical chemistry, analytical chemistry, inorganic chemistry, organic chemistry, polymer chemistry, materials chemistry, bioorganic chemistry, biochemistry, biotechnology and medicinal chemistry as well as interdisciplinary fields. TCR provides carefully selected highlight papers by leading researchers that introduce the author''s own experimental and theoretical results in a framework designed to establish perspectives with earlier and contemporary work and provide a critical review of the present state of the subject. The articles are intended to present concise evaluations of current trends in chemistry research to help chemists gain useful insights into fields outside their specialization and provide experts with summaries of recent key developments.