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Titanium-Carboxylate Metal-Organic Framework Based on an Unprecedented Ti-Oxo Chain Cluster

Title
Titanium-Carboxylate Metal-Organic Framework Based on an Unprecedented Ti-Oxo Chain Cluster
Authors
Keum, YesubPark, SeonghunChen, Ying-PinPark, Jinhee
DGIST Authors
Park, Jinhee
Issue Date
2018-11
Citation
Angewandte Chemie - International Edition, 57(45), 14852-14856
Type
Article
Article Type
Article
Author Keywords
cluster compoundsmetal-organic frameworksreactive oxygen speciesselective alcohol oxidationTi-oxo chain cluster
Keywords
SINGLET OXYGENCO2 REDUCTIONPHOTOCATALYSISWATERMECHANISMSCHEMISTRYREACTIVITYCOMPLEXESMOF
ISSN
1433-7851
Abstract
Titanium(IV)-based metal-organic frameworks (Ti-MOFs) have received significant attention in recent years due to their numerous photocatalytic applications. We herein prepare the single-crystalline Ti-carboxylate MOF (DGIST-1) composed of an unprecedented Ti-oxo chain cluster and the porphyrinic ligand, TCPP (tetrakis(4-carboxyphenyl)porphyrin). Preformed Ti-oxo clusters were used as Ti4+ sources to avoid the spontaneous hydrolysis and condensation reactions of traditional Ti-alkoxide precursors, thus, enabling the formation of the highly crystalline Ti-MOF. The successfully activated DGIST-1 exhibited a higher surface area (i.e., 1957.3 m2 g−1) than previously reported Ti-MOFs due to its high crystallinity. Furthermore, the visible-light-responsive photocatalytic activity of DGIST-1 was confirmed by the simultaneous generation of singlet oxygen (1O2) and superoxide (.O2 −) species, in addition to the highly efficient and selective oxidation of benzyl alcohol to benzaldehyde. © 2018 Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim
URI
http://hdl.handle.net/20.500.11750/9362
DOI
10.1002/anie.201809762
Publisher
John Wiley & Sons Ltd.
Related Researcher
  • Author Park, Jinhee Organic-Inorganic Hybrids Lab
  • Research Interests Organic-Inorganic Hybrid Materials; Metal-Organic Polyheda;Metal-Organic Frameworks; Porous Polymer Networks
Files:
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Collection:
Department of Emerging Materials ScienceOrganic-Inorganic Hybrids Lab1. Journal Articles


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