化工进展 ›› 2024, Vol. 43 ›› Issue (S1): 335-350.DOI: 10.16085/j.issn.1000-6613.2024-0584

• 工业催化 • 上一篇    下一篇

低浓度二氧化碳还原光催化剂结构设计的研究进展

于梦洁1(), 吴语童1, 罗发祥1, 豆义波1,2()   

  1. 1.北京化工大学化工资源有效利用国家重点实验室,北京 100029
    2.衢州资源化工创新研究院,浙江 衢州 324000
  • 收稿日期:2024-04-09 修回日期:2024-07-12 出版日期:2024-11-20 发布日期:2024-12-06
  • 通讯作者: 豆义波
  • 作者简介:于梦洁(1998—),女,硕士研究生,研究方向为光催化二氧化碳还原。E-mail:2022201046@buct.edu.cn
  • 基金资助:
    国家自然科学基金(22278029);国家重点研发计划(2021YFC2103500);中央高校基本科研业务费专项基金(butrc202203);大学生创新创业训练计划

Research progress on structural design of photocatalysts for diluted carbon dioxide reduction

YU Mengjie1(), WU Yutong1, LUO Faxiang1, DOU Yibo1,2()   

  1. 1.State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology, Beijing 100029, China
    2.Quzhou Resources and Chemical Innovation Research Institute, Quzhou 324000, Zhejiang, China
  • Received:2024-04-09 Revised:2024-07-12 Online:2024-11-20 Published:2024-12-06
  • Contact: DOU Yibo

摘要:

光催化二氧化碳(CO2)转化为增值化学品和燃料是缓解全球变暖、实现“碳中和”目标的有前途的策略之一。为了推进该领域的发展,高效光催化剂的设计合成至关重要。相比于前期研究,近五年研究学者集中在低浓度CO2光还原的研究上。基于此,本文综述了低浓度二氧化碳还原光催化剂结构设计的研究进展。首先介绍了光催化CO2还原的机理、路径及其影响因素;其次总结了基于金属有机骨架材料、共价有机框架材料、金属氧化物、单原子这四类光催化剂的结构特征和调控策略;深入探讨了催化剂的CO2吸附和富集能力、电子-空穴分离迁移能力及表面位点活性等重要因素对低浓度CO2光催化还原效率和选择性的影响;最后,针对低浓度CO2还原光催化剂在产物选择性、转化效率、高值C2产品合成方面存在的挑战,本文从催化剂结构设计方向提供了相关的解决思路和策略。

关键词: 二氧化碳捕集, 光化学, 催化剂, 碳氢化合物

Abstract:

Photocatalytic conversion of carbon dioxide (CO2) into value-added chemicals and fuels is one of the promising strategies for mitigating global warming and achieving the goal of carbon neutrality. In order to promote the development of this field, the design and synthesis of efficient photocatalysts is critical. Compared with previous studies, low-concentration CO2 photoreduction received intensive research in the past five years. Hence, this review explores the latest advancements in structure design of photocatalyst for diluted CO2 reduction. Firstly, the mechanism and pathways of CO2 photoreduction as well as their influencing factors are briefly introduced. Secondly, the structural characteristics and regulation strategies are reviewed in term of four types of photocatalyst, including metal-organic framework, covalent organic framework, metal oxides, and single atom photocatalysts. The effects of CO2 adsorption and enrichment, electron-hole separation and migration and surface site activity on the efficiency and selectivity were deeply investigated. Finally, in response to the opportunities and challenges of photocatalyst for efficient diluted CO2 reduction, including product selectivity, conversion efficiency and the synthesis of high-value C2 products, we proposed relevant solutions and strategies regarding catalyst structure design.

Key words: carbon dioxide capture, photochemistry, catalyst, hydrocarbons

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