A multifunctional Co-based metal-organic framework: heterogeneous catalysis, chemiluminescence sensing and moisture-dependent solvatochromism

Crystalline materials with multi-catalytic applications are of great value to both fundamental research and practical applications. The platform of metal-organic frameworks (MOFs) is utilized to fabricate a microporous versatile catalyst with high stability. Self-assembly of a flexible ligand, 4-(4-...

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Published in:Dalton transactions : an international journal of inorganic chemistry 2018, Vol.47 (35), p.12406-12413
Main Authors: Xie, Ming-Hua, Wang, Ya, Li, Ruo-Fei, Dong, Peng-Yu, Hou, Gui-Hua, Shao, Rong, Xi, Xin-Guo, Guan, Rong-Feng, Yang, Xiu-Li
Format: Article
Language:English
Subjects:
Benzoic acid
Catalysis
Catalysts
Catalytic activity
Chemical activity
Chemiluminescence
Hydrogen peroxide
Life Sciences
Metal-organic frameworks
Organic chemistry
Self-assembly
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Summary:Crystalline materials with multi-catalytic applications are of great value to both fundamental research and practical applications. The platform of metal-organic frameworks (MOFs) is utilized to fabricate a microporous versatile catalyst with high stability. Self-assembly of a flexible ligand, 4-(4-carboxybenzylamino)benzoic acid (H2CBBA), with Co(ii) resulted in a 3D framework, CBBA-Co, with Co3O clusters exposed in the zigzag channels. Upon in situ activation, CBBA-Co exhibited multiple heterogeneous catalytic activities. Theoretical calculations were carried out to give insights into the catalytic process. In addition, CBBA-Co also showed promising potential in optical sensing by virtue of its catalytic activity. The luminol chemiluminescence was greatly enhanced by CBBA-Co, and linear determination of the concentration of H2O2 in the range of 0-30% was established. The successful implementation of CBBA-Co indicates the feasibility and promising future of employing MOFs as an efficient platform for the fabrication and study of multifunctional catalysts, both experimentally and theoretically.
ISSN:1477-9226
1477-9234
DOI:10.1039/C8DT02625D