Recent progress on visible light responsive heterojunctions for photocatalytic applications
Recent progress on visible light responsive heterojunctions for photocatalytic applications
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DOI：
10.1016/j.jmst.2016.11.017
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发表时间：
2017-02
影响因子：
10.9
通讯作者：
Songcan Wang;Jung‐Ho Yun;Bin Luo;T. Butburee;Piangjai Peerakiatkhajohn;Supphasin Thaweesak;Mu Xiao
中科院分区：
文献类型：
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作者：
Songcan Wang;Jung‐Ho Yun;Bin Luo;T. Butburee;Piangjai Peerakiatkhajohn;Supphasin Thaweesak;Mu Xiao
光催化由于其在解决能源和环境问题上的巨大潜力，近年来引起了人们的广泛关注。尽管已经取得了许多成就，但迄今为止开发的光催化系统由于效率低和耐久性差而离实际应用还很远。高效的光吸收和电荷分离是探索高性能光催化体系的两个关键因素，这通常难以在单一光催化剂中获得。各种材料的组合形成异质结提供了一种有效的方式来更好地收集太阳能并促进电荷分离和转移，从而提高光催化活性和稳定性。本文简要介绍了可见光响应异质结的最新进展，包括半导体/半导体结、半导体/助催化剂结、半导体/金属结、半导体/非金属结和表面异质结的制备和性能，以及它们增强光捕获和电荷分离/转移的机理。
Photocatalysis has attracted much attention in recent years due to its potential in solving energy and environmental issues. Even though numerous achievements have been made, the photocatalytic systems developed to date are still far from practical applications due to the low efficiency and poor durability. Efficient light absorption and charge separation are two of the key factors for the exploration of high performance photocatalytic systems, which is generally difficult to be obtained in a single photocatalyst. The combination of various materials to form heterojunctions provides an effective way to better harvest solar energy and to facilitate charge separation and transfer, thus enhancing the photocatalytic activity and stability. This review concisely summarizes the recent development of visible light responsive heterojunctions, including the preparation and performances of semiconductor/semiconductor junctions, semiconductor/cocatalyst junctions, semiconductor/metal junctions, semiconductor/non-metal junctions, and surface heterojunctions, and their mechanism for enhanced light harvesting and charge separation/transfer.