Journal
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
Volume 58, Issue 49, Pages 17843-17848Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/anie.201911600
Keywords
CO2 evolution; long-term stability; metal-organic frameworks; photocatalysis; photodecarboxylation
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Funding
- Spanish Ministry of Economy and Competitiveness [CTQ2015-69563-CO2-R1]
- Generalitat Valenciana [Prometeo 2013-014]
- Universitat Politecnica de Valencia
- Spanish Ministry of Science
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Prolonged (weeks) UV/Vis irradiation under Ar of UiO-66(Zr), UiO66 Zr-NO2, MIL101 Fe, MIL125 Ti-NH2, MIL101 Cr and MIL101 Cr(Pt) shows that these MOFs undergo photodecarboxylation of benzenedicarboxylate (BDC) linker in a significant percentage depending on the structure and composition of the material. Routine characterization techniques such as XRD, UV/Vis spectroscopy and TGA fail to detect changes in the material, although porosity and surface area change upon irradiation of powders. In contrast to BCD-containing MOFs, zeolitic imidazolate ZIF-8 does not evolve CO2 or any other gas upon irradiation.
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