Chemical Industry and Engineering Progress ›› 2024, Vol. 43 ›› Issue (4): 1810-1822.DOI: 10.16085/j.issn.1000-6613.2023-0603

• Industrial catalysis • Previous Articles    

Particulate photocatalysts for light-driven overall water splitting

WU Chenhe1(), LIU Yumin1(), YANG Xinmin1, CUI Jiwei1, JIANG Shaokun2(), YE Jinhua1, LIU Lequan1()   

  1. 1.School of Materials Science and Engineering, Tianjin University, Tianjin 300072, China
    2.Purification Equipment Research Institute of Handan, Handan 056000, Hebei, China
  • Received:2023-04-14 Revised:2023-05-28 Online:2024-05-13 Published:2024-04-15
  • Contact: JIANG Shaokun, LIU Lequan

粉体光催化全水分解技术研究进展

吴晨赫1(), 刘彧旻1(), 杨昕旻1, 崔记伟1, 姜韶堃2(), 叶金花1, 刘乐全1()   

  1. 1.天津大学材料科学与工程学院,天津 300072
    2.邯郸净化设备研究所,河北 邯郸 056000
  • 通讯作者: 姜韶堃,刘乐全
  • 作者简介:吴晨赫(1998—),女,硕士研究生,研究方向为光催化。E-mail:wuchenhe2021@tju.edu.cn
    刘彧旻(2004—),男,本科生,研究方向为光催化水分解。E-mail:liuyumin919@tju.edu.cn
  • 基金资助:
    国家重点研发计划(2021YFA1500800);国家自然科学基金(22072106)

Abstract:

Photocatalytic overall water splitting (POWS) is a simple and cost-effective approach to directly transforming solar energy into green hydrogen, which attracts great attention and demonstrates a bright prospect. The performance of photocatalyst is recognized as the key factor in the development of POWS. The strategies for improving the performance mainly focus on the three fundamental steps of photocatalysis, i.e., light absorption, carrier separation and migration and surface reaction. This paper reviews the recent achievements from the perspectives of valid strategies in coping with the challenges in these steps. Based on this, we summarize the important strategies of designing and preparing efficient photocatalysts for POWS and analyze the remaining obstacles to the industrial application of POWS. It is pointed out that the main challenge at present is to develop efficient narrow-gap photocatalysts. Meanwhile, the problems of serious backward reaction, the instability of the materials, and the technological problems like the separation of H2-O2 mixture during large-scale operations should also be addressed in the future.

Key words: solar energy, photocatalysis, overall water splitting, hydrogen production, catalyst, renewable energy

摘要:

光催化全水分解制氢可以直接将太阳能转变为绿色氢能,该技术具有过程简单、成本低等优势,受到广泛关注的同时展现出了良好的应用前景。半导体光催化剂的性能是光催化全水分解技术发展的核心因素,目前该领域主要围绕光催化反应的三个基本步骤对其性能进行提升:光吸收、载流子分离与迁移以及表面反应。本文从光催化基本原理出发,围绕以上三方面概述了应对相应挑战的有效策略与近年来的研究进展,在此基础上总结了设计、制备高效光催化全水分解材料的重要方法,分析了当前影响该水分解制氢技术工业化应用的难点,指出该领域的核心问题是开发高效的窄带隙光催化材料,同时未来需着重解决逆反应严重、催化剂稳定性不足以及大规模实施过程中的氢氧混合气体分离等技术问题。

关键词: 太阳能, 光催化, 全水分解, 制氢, 催化剂, 可再生能源

CLC Number: 

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