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Amorphous Co(MeIm)2 frameworks coating on AuCo for the size-selective photocatalysis and interface transfer

Abstract

Porous metal-organic frameworks associated with functional materials has attracted considerable attentions due to excellent catalytic performance. In this work, AuCo-MeIm was synthesized by coating amorphous cobalt-methylimidazole [Co(MeIm)2] frameworks on AuCo particles, which was also used as Co(II) source for construction of Co(MeIm)2. TEM, XRD and TG results indicated the identification of amorphous Co(MeIm)2 in the heterostructured composite. AuCo-MeIm showed a size-selective catalytic performance in the photocatalytic removal of Cr(VI) and methylene blue attributed to the network of amorphous Co(MeIm)2 coatings. Although Co(MeIm)2 coatings contributed to the adsorption and photocatalytic degradation of MB by affinity of aromatic rings and ligand to metal charge transfer mechanism, the coatings still showed a significantly inhibitory effect on the removal of methylene blue. This size-selective property was also well described by the proposed interface transfer kinetics.

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Publication details

The article was accepted on 08 Sep 2017 and first published on 08 Sep 2017


Article type: Paper
DOI: 10.1039/C7CY01783A
Citation: Catal. Sci. Technol., 2017, Accepted Manuscript
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    Amorphous Co(MeIm)2 frameworks coating on AuCo for the size-selective photocatalysis and interface transfer

    B. Yu, J. Hou and J. Gong, Catal. Sci. Technol., 2017, Accepted Manuscript , DOI: 10.1039/C7CY01783A

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