Potential photo-switching sorbents for CO2 capture – A review

Qiao, Yuanting; Bailey, Josh J.; Huang, Qi; Ke, Xuebin; Wu, Chunfei

Abstract

Porous materials with photochromic units are currently under investigation as light allows for environmentally friendly and highly energy-efficient control for gas separation and storage, chemical sensing, and drug delivery. In the application of photo-switching materials to CO2 capture, researchers have tried to endow a diversity of porous materials such as metal-organic frameworks and porous organic polymers with photo-responsive units. This review highlights photochromic units and methods used for different types of photo-responsive adsorbents of CO2 and some examples of adsorbents with photo-switching properties. These sorbents are also promising for application to direct air capture of CO2. In particular, the cost of adsorbent regeneration could be reduced by using sorbents with light-induced regeneration. The key purpose of this review is to motivate more research into photo-switching sorbents for CO2 capture with the control of capture or release by simply switching the light on and off.

Citation

Qiao, Y., Bailey, J. J., Huang, Q., Ke, X., & Wu, C. (2022). Potential photo-switching sorbents for CO2 capture – A review. Renewable & sustainable energy reviews, 158, Article 112079. https://doi.org/10.1016/j.rser.2022.112079

• Journal Article Type: Review
• Acceptance Date: Jan 3, 2022
• Online Publication Date: Jan 18, 2022
• Publication Date: 2022-04
• Deposit Date: Mar 17, 2022
• Publicly Available Date: Jan 19, 2023
• Journal: Renewable and Sustainable Energy Reviews
• Print ISSN: 1364-0321
• Electronic ISSN: 1879-0690
• Publisher: Elsevier
• Peer Reviewed: Peer Reviewed
• Volume: 158
• Article Number: 112079
• DOI: https://doi.org/10.1016/j.rser.2022.112079
• Keywords: CO2 capture; Sorbent regeneration; Photoresponsivity; Photo-switch; Direct air capture; Photochromic compounds
• Public URL: https://hull-repository.worktribe.com/output/3917809