Pivotal Impact Factors in Photocatalytic Reduction of CO2 to Value-Added C1 and C2 Products

authored by
Yongqian Cui, Abdelkader Labidi, Xinxin Liang, Xin Huang, Jingyi Wang, Ximing Li, Qibing Dong, Xiaolong Zhang, Sarah I. Othman, Ahmed A. Allam, Detlef W. Bahnemann, Chuanyi Wang
Abstract

Over the past decades, CO2 greenhouse emission has been considerably increased, causing global warming and climate change. Indeed, converting CO2 into valuable chemicals and fuels is a desired option to resolve issues caused by its continuous emission into the atmosphere. Nevertheless, CO2 conversion has been hampered by the ultrahigh dissociation energy of C=O bonds, which makes it thermodynamically and kinetically challenging. From this prospect, photocatalytic approaches appear promising for CO2 reduction in terms of their efficiency compared to other traditional technologies. Thus, many efforts have been made in the designing of photocatalysts with asymmetric sites and oxygen vacancies, which can break the charge distribution balance of CO2 molecule, reduce hydrogenation energy barrier and accelerate CO2 conversion into chemicals and fuels. Here, we review the recent advances in CO2 hydrogenation to C1 and C2 products utilizing photocatalysis processes. We also pin down the key factors or parameters influencing the generation of C2 products during CO2 hydrogenation. In addition, the current status of CO2 reduction is summarized, projecting the future direction for CO2 conversion by photocatalysis processes.

Organisation(s)
Institute of Technical Chemistry
External Organisation(s)
Shaanxi University of Science and Technology
Princess Nourah bint Abdulrahman University
Al-Imam Muhammad Ibn Saud Islamic University
Saint Petersburg State University
Type
Review article
Journal
CHEMSUSCHEM
Volume
17
ISSN
1864-5631
Publication date
24.09.2024
Publication status
Published
Peer reviewed
Yes
ASJC Scopus subject areas
Environmental Chemistry, Chemical Engineering(all), Materials Science(all), Energy(all)
Sustainable Development Goals
SDG 13 - Climate Action
Electronic version(s)
https://doi.org/10.1002/cssc.202400551 (Access: Closed)