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Cu MOF-based catalytic sensing for formaldehyde

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Abstract

Developing a catalyst with a uniform and well-defined crystal structure is very important to establish a catalytic sensing system with high efficiency. In this work, Cu-BTC metal–organic frameworks (MOFs) without a crystalline CuO or Cu2O phase were successfully synthesized by using a low temperature synthesis method, and the as-prepared Cu-BTC MOFs were found to have outstanding catalytic activity towards the traditional oxidase substrate, o-phenylenediamine (OPD), to generate a colored and fluorescent product. The results of the kinetics analysis revealed that the catalytic behavior of Cu-BTC MOFs towards OPD could well follow the typical Michaelis–Menten equation, indicative of a strong affinity between Cu-BTC MOFs and OPD. On the basis of these findings, taken together the condensation reaction between the –CHO group of formaldehyde and the –NH2 group of OPD to form Schiff base compounds, a novel Cu-BTC MOF-based catalytic sensing system for detecting gaseous formaldehyde could be successfully established.

Graphical abstract: Cu MOF-based catalytic sensing for formaldehyde

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Publication details

The article was received on 11 Apr 2018, accepted on 09 Jul 2018 and first published on 09 Jul 2018


Article type: Paper
DOI: 10.1039/C8TC01703D
Citation: J. Mater. Chem. C, 2018, Advance Article
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    Cu MOF-based catalytic sensing for formaldehyde

    P. Gao, X. Sun, B. Liu, H. Lian, X. Liu and J. Shen, J. Mater. Chem. C, 2018, Advance Article , DOI: 10.1039/C8TC01703D

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