Long-Term Photostability in Terephthalate Metal-Organic Frameworks

Diego Mateo; Andrea Santiago-Portillo; Josep Albero; Sergio Navalón; Mercedes Alvaro; Hermenegildo García

doi:10.1002/anie.201911600

Long-Term Photostability in Terephthalate Metal-Organic Frameworks

Angew Chem Int Ed Engl. 2019 Dec 2;58(49):17843-17848. doi: 10.1002/anie.201911600. Epub 2019 Oct 23.

Authors

Diego Mateo¹, Andrea Santiago-Portillo², Josep Albero¹, Sergio Navalón², Mercedes Alvaro², Hermenegildo García¹

Affiliations

¹ Instituto Universitario de Tecnología Química CSIC-UPV, Universitat Politècnica de València, Av. De los Naranjos s/n, 46022, València, Spain.
² Departamento de Química, Universitat Politècnica de València, Camino de Vera s/n, 46022, València, Spain.

PMID: 31584744
DOI: 10.1002/anie.201911600

Abstract

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.

Keywords: CO2 evolution; long-term stability; metal-organic frameworks; photocatalysis; photodecarboxylation.

Publication types

Review

Abstract

Publication types

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