Photothermal Activation of Metal–Organic Frameworks Using a UV–Vis Light Source

• DOI: 10.1021/acsami.8b00557
• Publication Date: 2018-02-26T10:26:23Z
• Authors: Jordi Espín; Luis Garzón-Tovar; Arnau Carné-Sánchez; Inhar Imaz; Daniel Maspoch
• Keywords: Metal-organic framework; Activation; Metal-organic frameworks; UV-Vis light; Permanent porosity; 01 natural sciences; Photothermal effect; UV-vis light; 0104 chemical sciences

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 photothermal effect induced by directly irradiating them with UV-vis lamp. The localized light-to-heat conversion produced in MOF crystals upon irradiation enables very fast removal, thereby significantly reducing activation time as low 30 min and suppressing need time-consuming solvent-exchange procedures vacuum conditions. This approach is successful broad range MOFs, including HKUST-1, UiO-66-NH2, ZIF-67, CPO-27-M (M = Zn, Ni, Mg), Fe-MIL-101-NH2, IRMOF-3, all which exhibit absorption bands light emission range. In addition, anticipate that this can also be used activate covalent organic (COFs).