Journal
ACS APPLIED MATERIALS & INTERFACES
Volume 10, Issue 11, Pages 9555-9562Publisher
AMER CHEMICAL SOC
DOI: 10.1021/acsami.8b00557
Keywords
metal-organic framework; photothermal effect; activation; UV-vis light; permanent porosity
Funding
- Spanish MINECO [PN MAT2015-65354-C2-1-R]
- Catalan AGAUR [2014 SGR 80]
- ERG under the EU [ERG-Co 615954]
- European Union's Horizon research and innovation programme [685727]
- CERCA Programme/Generalitat de Catalunya
- Spanish MINECO through the Severo Ochoa Centers of Excellence Program [SEV-2013-0295]
- MINECO
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Metal-organic frameworks (MOFs) usually require meticulous removal of the solvent molecules to unlock their potential porosity. Herein, we report a novel one-step method for activating MOFs based on the photothermal effect induced by directly irradiating them with a UV-vis lamp. The localized light-to-heat conversion produced in the MOF crystals upon irradiation enables a very fast solvent removal, thereby significantly reducing the activation time to as low as 30 min and suppressing the need for time-consuming solvent exchange procedures and vacuum conditions. This approach is successful for a broad range of MOFs, including HKUST-1, UiO-66 NH2, ZIF-67, CPO-27-M (M = Zn, Ni, and Mg), Fe-MIL-101-NH2, and IRMOF-3, all of which exhibit absorption bands in the light emission range. In addition, we anticipate that this photothermal activation can also be used to activate covalent organic frameworks (COFs).
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