Premium
Visible Light Triggered CO 2 Liberation from Silver Nanocrystals Incorporated Metal–Organic Frameworks
Author(s) -
Li Haiqing,
Hill Matthew R.,
Doblin Christian,
Lim Seng,
Hill Anita J.,
Falcaro Paolo
Publication year - 2016
Publication title -
advanced functional materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 6.069
H-Index - 322
eISSN - 1616-3028
pISSN - 1616-301X
DOI - 10.1002/adfm.201600827
Subject(s) - materials science , metal organic framework , nanocrystal , visible spectrum , adsorption , nanotechnology , desorption , artificial photosynthesis , chemical engineering , photocatalysis , irradiation , photochemistry , optoelectronics , catalysis , organic chemistry , chemistry , physics , nuclear physics , engineering
Widespread deployment of metal–organic frameworks (MOFs) for CO 2 capture remains challenging due to the great energy‐penalty associated with their regeneration. To overcome this challenge, a new type of photodynamic carbon capture material synthesized by incorporating Ag nanocrystals with UiO‐66 (Ag/UiO‐66) framework is presented. Upon the irradiation of visible light, Ag nanocrystals within the composites serve as “nanoheaters” to convert photon energy into thermal energy locally. Driven by such light‐induced localized heat (LLH), the adsorbed CO 2 within MOFs is remotely released. The CO 2 desorption capacity of such Ag/UiO‐66 composites can be readily regulated by control over their Ag contents and the applied light intensity. Up to 90.5% of CO 2 desorption is achieved under the investigated conditions. Distinct from the traditional light‐responsive MOFs for gas trigger release, currently developed LLH‐driven CO 2 release method not only offers a promising solution to the heat‐insulating nature of MOFs, but also demonstrates a potentially low energy method to remotely regenerate MOF adsorbents given the utilization of naturally abundant visible light as efficient stimulus.