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A Titanium(IV)-Based Metal-Organic Framework Featuring Defect-Rich Ti-O Sheets as an Oxidative Desulfurization Catalyst
Stockholm University, Faculty of Science, Department of Materials and Environmental Chemistry (MMK).
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Number of Authors: 112019 (English)In: Angewandte Chemie International Edition, ISSN 1433-7851, E-ISSN 1521-3773, Vol. 58, no 27, p. 9160-9165Article in journal (Refereed) Published
Abstract [en]

While titanium-based metal-organic frameworks (MOFs) have been widely studied for their (photo) catalytic potential, only a few Ti-IV MOFs have been reported owing to the high reactivity of the employed titanium precursors. The synthesis of COK-47 is now presented, the first Ti carboxylate MOF based on sheets of (TiO6)-O-IV octahedra, which can be synthesized with a range of different linkers. COK-47 can be synthesized as an inherently defective nanoparticulate material, rendering it a highly efficient catalyst for the oxidation of thiophenes. Its structure was determined by continuous rotation electron diffraction and studied in depth by X-ray total scattering, EXAFS, and solid-state NMR. Furthermore, its photoactivity was investigated by electron paramagnetic resonance and demonstrated by catalytic photodegradation of rhodamine 6G.

Place, publisher, year, edition, pages
2019. Vol. 58, no 27, p. 9160-9165
Keywords [en]
metal-organic frameworks, oxidative desulfurization, photocatalysis, Ti-oxo sheets, titanium
National Category
Chemical Sciences
Identifiers
URN: urn:nbn:se:su:diva-171793DOI: 10.1002/anie.201904347ISI: 000476691200034PubMedID: 31059170OAI: oai:DiVA.org:su-171793DiVA, id: diva2:1345645
Available from: 2019-08-26 Created: 2019-08-26 Last updated: 2019-08-26Bibliographically approved

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Smolders, SimonWillhammar, TomWharmby, Michael T.
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