Selective photocatalytic CO2 reduction on copper-titanium dioxide: a study of the relationship between CO production and H2 suppression

Yangchun Lan; Yongzhi Xie; Jiaxi Chen; Zhuofeng Hu; Dehu Cui

doi:10.1039/c9cc02891a

Selective photocatalytic CO₂ reduction on copper-titanium dioxide: a study of the relationship between CO production and H₂ suppression

Chem Commun (Camb). 2019 Jul 9;55(56):8068-8071. doi: 10.1039/c9cc02891a.

Authors

Yangchun Lan¹, Yongzhi Xie, Jiaxi Chen, Zhuofeng Hu, Dehu Cui

Affiliation

¹ Department of Electrical and Electronic Engineering, Southern University of Science and Technology, Shenzhen 518055, China. cuidh@sustech.edu.cn.

PMID: 31194199
DOI: 10.1039/c9cc02891a

Abstract

Low selectivity and the competing reaction of hydrogen evolution are two problems in photocatalytic CO2 reduction. Herein, we deposited highly crystalline metallic Cu nanoparticles onto TiO2 photocatalysts using a solvothermal method. They were found to convert CO2 into CO without any by-products. Importantly, hydrogen evolution can be suppressed after a reaction time of 1-2 h with a high generation rate and selectivity for CO production.