应用化学 ›› 2024, Vol. 41 ›› Issue (5): 637-658.DOI: 10.19894/j.issn.1000-0518.230369

• 综合评述 • 上一篇    

TiO2基光催化CO2还原研究进展

万冰洁1, 刘小雪1, 齐林光1, 贾长超1(), 刘健1,2()   

  1. 1.青岛科技大学材料科学与工程学院,青岛 266042
    2.中国科学院青岛生物能源与过程研究所,太阳能光电转化与利用重点实验室,青岛新能源山东省实验室,青岛 266101
  • 收稿日期:2023-11-24 接受日期:2024-03-15 出版日期:2024-05-01 发布日期:2024-06-03
  • 通讯作者: 贾长超,刘健

Research Progress of TiO2-Based Photocatalytic CO2 Reduction

Bing-Jie WAN1, Xiao-Xue LIU1, Lin-Guang QI1, Chang-Chao JIA1(), Jian LIU1,2()   

  1. 1.College of Materials Science and Engineering,Qingdao University of Science and Technology,Qingdao 266042,China
    2.Qingdao Institute of Biomass Energy and Bioprocess Technology,Chinese Academy of Sciences,Key Laboratory of Photoelectric Conversion and Utilization of Solar Energy,Qingdao New Energy Shandong Laboratory,Qingdao 266101,China
  • Received:2023-11-24 Accepted:2024-03-15 Published:2024-05-01 Online:2024-06-03
  • Contact: Chang-Chao JIA,Jian LIU
  • About author:jiachangchao@qust.edu.cn
    liujian@qibebt.ac.cn
  • Supported by:
    the Qingdao Natural Science Foundation(23-2-1-250-zyyd-jch);China Postdoctoral Science Foundation(2022M711743);the National Natural Science Foundation of China(22175104);the Natural Science Foundation of Shandong Province(ZR2019ZD47);the Education Department of Shandong Province(2019KJC006)

摘要:

自二氧化钛(TiO2)材料被发现具有光催化性能以来,至今已有50余年的发展历程。因其优异的催化活性以及化学稳定性在光催化领域备受青睐。本文总结了近年来TiO2基材料在光催化CO2还原(CO2RR)方面的发展,有助于全面认识和把握该领域的研究进展和发展趋势,为双碳目标的顺利实现提供有力支撑。本文主要从光催化CO2还原机理、CO2还原反应体系和TiO2基催化剂在光催化CO2还原方面的研究进展进行论述; 详细阐述了对TiO2基光催化剂活性位点的调控,重点探讨了钛氧簇的设计、路易斯酸碱对的构筑、异质结的建立以及浸润性调节对TiO2基光催化剂性能的提高; 最后,对该领域面临的挑战和发展机遇进行了分析和展望。

关键词: 二氧化钛, 光催化, 二氧化碳还原, 钛氧簇, 活性位点, 浸润性

Abstract:

The search for alternatives to fossil fuels has received a great deal of attention based on the urgency of reducing CO2 levels in the atmosphere and the demand for energy at this stage. Solar energy is the world's most abundant renewable energy source, and photocatalysis is a sunlight-driven chemical reaction process carried out on the surface of the photocatalyst. The realization of the carbon cycle is an urgent need for the development of human society. Photocatalysis has the advantages of low energy consumption and mild reaction conditions, and realizing the resource utilization of CO2 by simulating natural photosynthesis, which is one of the most promising means to solve this problem, and is of great significance for realizing carbon neutrality. The central issue in the case is the development of efficient, environmentally friendly and inexpensive catalysts. Titanium dioxide (TiO2) is favored in photocatalysis because of its high catalytic activity and excellent chemical stability. However, some bottlenecks still restrict the photocatalytic activity. Various methods have been tried to optimize the photocatalytic performance. This article summarizes the photocatalytic CO2 reduction based on TiO2 photocatalysts in recent years, which helps to comprehensively understand and grasp the research progress and trends in this field. This paper mainly discusses the mechanism of photocatalytic CO2 reduction, reaction system, and the research progress of TiO2-based catalysts in photocatalytic CO2 reduction. The active sites of TiO2-based photocatalysts are elaborated, focusing on the applications of titanium-oxo clusters, the construction of Lewis acid-base pairs, the establishment of heterojunctions, and the modulation of surface wettability. These strategies can not only increase the effective active sites on the catalyst surface, but also effectively enhance the separation efficiency of electron-hole pairs, so as to improve the photocatalytic CO2 reduction performance. Finally, the future opportunities and challenges in this field are prospected.

Key words: Titanium dioxide, Photocatalysis, Carbon dioxide reduction, Titanium-oxo cluster, Active site, Wettability

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