Wang Yiou, Suzuki Hajime, Xie Jijia, Tomita Osamu, Martin David James, Higashi Masanobu, Kong Dan, Abe Ryu, Tang Junwang
Department of Chemical Engineering , University College London , Torrington Place , London WC1E 7JE , U.K.
Graduate School of Engineering , Kyoto University , Katsura , Kyoto 615-8510 , Japan.
Chem Rev. 2018 May 23;118(10):5201-5241. doi: 10.1021/acs.chemrev.7b00286. Epub 2018 Apr 20.
Visible light-driven water splitting using cheap and robust photocatalysts is one of the most exciting ways to produce clean and renewable energy for future generations. Cutting edge research within the field focuses on so-called "Z-scheme" systems, which are inspired by the photosystem II-photosystem I (PSII/PSI) coupling from natural photosynthesis. A Z-scheme system comprises two photocatalysts and generates two sets of charge carriers, splitting water into its constituent parts, hydrogen and oxygen, at separate locations. This is not only more efficient than using a single photocatalyst, but practically it could also be safer. Researchers within the field are constantly aiming to bring systems toward industrial level efficiencies by maximizing light absorption of the materials, engineering more stable redox couples, and also searching for new hydrogen and oxygen evolution cocatalysts. This review provides an in-depth survey of relevant Z-schemes from past to present, with particular focus on mechanistic breakthroughs, and highlights current state of the art systems which are at the forefront of the field.
利用廉价且耐用的光催化剂进行可见光驱动的水分解，是为子孙后代生产清洁可再生能源的最令人兴奋的方法之一。该领域的前沿研究集中在所谓的“Z型”系统上，该系统的灵感来自于自然光合作用中的光系统II-光系统I（PSII/PSI）耦合。Z型系统由两种光催化剂组成，产生两组电荷载流子，在不同位置将水分解为其组成部分氢气和氧气。这不仅比使用单一光催化剂更有效，而且实际上可能更安全。该领域的研究人员不断致力于通过最大化材料的光吸收、设计更稳定的氧化还原对以及寻找新的析氢和析氧共催化剂，使系统达到工业级效率。本综述对过去到现在的相关Z型系统进行了深入调查，特别关注机理突破，并突出了该领域前沿的当前先进系统。
