Thermal-enhanced photocatalytic carbon dioxide reduction

被引：0

作者：

Luo Z. ^{[1
,2
]}

Long R. ^{[2
]}

Wang X. ^{[1
]}

Pei A. ^{[1
]}

Xiong Y. ^{[2
]}

机构：

[1] China Energy Engineering Group Guangdong Electric Power Design Institute Co., Ltd., Guangzhou

[2] School of Chemistry and Materials Science, University of Science and Technology of China, Hefei

来源：

Huagong Jinzhan/Chemical Industry and Engineering Progress | 2021年 / 40卷 / 09期

关键词：

CO[!sub]2[!/sub] conversion; Light absorption; Photocatalytic; Plasmonic effect; Thermal enhanced;

D O I：

10.16085/j.issn.1000-6613.2021-0632

中图分类号：

学科分类号：

摘要：

Directly utilizing sunlight to drive catalytic carbon dioxide (CO2) reduction into synthetic chemical fuels is one of the most promising approaches to alleviate the energy crisis and reduce the greenhouse effect. However, the inherent chemical stability of CO2 results in low photocatalytic conversion efficiency, forming a great challenge. Thermal energy is considered to be an important driving force to improve the catalytic conversion rate during the reaction process. Taking advantages of the high selectivity by photocatalysis and the high reaction activity by thermal catalysis, the thermal-enhanced photocatalysis CO2 reduction exhibits high conversion efficiency. This article summarized the different forms of thermal-enhanced photocatalysis CO2 reduction, including external heating sources, photothermal effect and plasmonic effect. The external heating source was mainly realized by direct heating device or focused solar energy, which could remarkably increase the production efficiency. The photothermal effect was exerting to increase the local reaction temperature of catalyst, which greatly enhanced the energy utilization efficiency in CO2 reduction. In addition to the same effect as the photothermal effect, plasmonic effect also played a role in enhancing light absorption, promoting carrier separation and accelerating surface reaction kinetics. In-depth research on the reaction mechanism and rational control of the reaction conditions would greatly promote the development of thermal-enhanced photocatalytic CO2 reduction technology and provide effective means for CO2 utilization. © 2021, Chemical Industry Press Co., Ltd. All right reserved.

引用

页码：5156 / 5165

页数：9

共 40 条

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