1D-based nanostructures in photocatalytic CO_(2) reduction  

一维纳米结构在光催化CO_(2)还原中的应用

作　　者：Farideh Kolahdouzan Nahal Goodarzi Mahboobeh Setayeshmehr Dorsa Sadat Mousavi Alireza Z.Moshfegh Farideh Kolahdouzan;Nahal Goodarzi;Mahboobeh Setayeshmehr;Dorsa Sadat Mousavi;Alireza Z.Moshfegh(谢里夫理工大学纳米科学与技术研究所,伊朗德黑兰;谢里夫理工大学物理系,伊朗德黑兰)

机构地区：[1]Center for Nanoscience and Nanotechnology,Institute for Convergence Science and Technology,Sharif University of Technology,Tehran 14588-89694,Iran [2]Department of Physics,Sharif University of Technology,Tehran 11555-9161,Iran

出　　处：《Chinese Journal of Catalysis》2025年第3期230-259,共30页催化学报(英文)

基　　金：谢里夫理工大学研究与技术委员会(G990219);伊朗国家科学基金会(4031442,4021464,4025823).

摘　　要：Air pollution and global warming have aroused great interest in CO_(2) conversion research,as CO_(2) is the most important greenhouse gas.Photocatalytic CO_(2) reduction reaction(CRR)is a key carbon capture and utilization(CCU)technology aimed at transforming CO_(2) into valuable products like fuels and chemicals.However,many semiconductor photocatalysts used in CRR face challenges such as low optical absorption,poor charge carrier separation,and electron-hole recombination,leading to low reaction yields.Some important solutions to these issues include reducing nanostructure dimensions,cocatalyst decoration,as well as metal/nonmetal doping,and heterojunction construction.One-dimensional(1D)nanostructures like nanorods,nanotubes,nanowires,and nanofibers are prominent photocatalysts for CO_(2) reduction process due to their excellent light absorption capability,high electron-hole separation efficiency,high aspect ratio,and abundant exposed active surface sites.In this research,after studying CO_(2) reduction mechanism,we first discuss 1D nanomaterials growth methods based on the growing environment.Types of 1D nanostructures in photocatalytic CRR,have been also investigated.Two main strategies to improve 1D-based photocatalysts in CRR including surface modification and heterojunction construction are reviewed.Finally,the report presents some important challenges of the CRR and their solutions for future applications.由于CO_(2)是最重要的温室气体,空气污染和全球变暖引起了人们对CO_(2)转化研究的极大兴趣.光催化CO_(2)还原反应(CRR)是一种关键的碳捕获和利用技术,旨在将CO_(2)转化为燃料和化学品等有价值的产品.然而,用于CRR的许多半导体光催化剂面临着光吸收低、载流子分离差和电子-空穴复合等挑战,导致反应收率低.这些问题的一些重要解决方案包括减小纳米结构尺寸、助剂装饰以及金属/非金属掺杂和构造异质结结构.一维(1D)纳米结构,如纳米棒、纳米管、纳米线和纳米纤维,由于其优异的光吸收能力、高电子-空穴分离效率、高长径比和丰富的暴露活性表面位点,是CO_(2)还原过程的突出光催化剂.本文首先介绍了CO_(2)还原机理,随后讨论了基于生长环境的一维纳米材料生长方法及应用在光催化CRR中的类型.综述了应用于CRR中1D基光催化剂的两种主要改进策略,包括表面改性和构造异质结结构.最后提出了CRR在未来应用面临的一些重要挑战及其解决方案.

关 键 词：Photocatalytic CO_(2)conversion One-dimensional nanostructure Value-added product HETEROJUNCTION S-scheme Greenhouse gas 

分 类 号：O643.3[理学—物理化学]