A metal–organic cage with light-switchable motifs for controllable CO2 adsorption

文献情報

出版日 2023-11-27

DOI 10.1039/D3TA06149C

インパクトファクター 12.732

著者

Yao Jiang, Tao Yang, Xiao-Qin Liu, Peng Cui, Lin-Bing Sun

原文を見る

要旨

Light-switchable composites have great potential to enable processes that can be controlled on demand, which is difficult to achieve with conventional materials that have stationary structures and properties. Here, we present a light-switchable metal–organic cage, NUT-102, structurally incorporated with pendant azobenzene groups for controllable CO2 capture. Upon visible light irradiation, the trans isomerization of the azobenzene groups exposes the pores of NUT-102 and favors CO2 adsorption. Conversely, upon ultraviolet light irradiation, the azobenzene groups undergo a conformation transformation from trans to cis isomerization, resulting in the sheltering of the pores and subsequently reducing CO2 adsorption. Significantly, the light-switchable modulated CO2 adsorption change amount can reach up to 65.2%. Moreover, density functional theory calculations further confirmed the controllable CO2 adsorption behavior in NUT-102. The present study provides new insights into the development of novel light-switchable adsorbents tailored for controllable CO2 adsorption.

掲載誌

Journal of Materials Chemistry A

CiteScore: 19.5

自己引用率: 4.7%

年間論文数: 2211

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