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Excellent photocatalytic degradation and disinfection performance of a novel bifunctional Ag@AgSCN nanostructure with exposed {-112} facets

Abstract

A novel bifunctional Ag@AgSCN nanostructure with excellent photocatalytic degradation and antimicrobial performance has been successfully prepared by a simple precipitation method. Both the PVP and the dropping rate of AgNO3 solution have great effect on the triangle-shaped Ag@AgSCN nanostructure with exposed {-112} facets. The degradation constant (k) of triangle-shaped Ag@AgSCN (0.28 min-1) is three times as many as that of Ag@AgSCN nanoparticles (0.09 min-1), which also shows better bactericidal activity than Ag@AgSCN nanoparticles. Furthermore, the triangle-shaped Ag@AgSCN exhibits excellent structure stability in the cyclic experiment, which reaches six cycles and four cycles in the photocatalytic degradation and antimicrobial experiments, respectively. The novel triangle-shaped Ag@AgSCN structure provided high-index facets with high catalytic activity, increased the adsorption amount of phenol and improved the separation efficiency of electron-hole pairs, which results in more active species produced over triangle-shaped Ag@AgSCN than nanoparticles. The effect of active species on the photocatalytic activity in the order: ·O2->h+>·OH radicals.

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Publication details

The article was received on 14 Apr 2018, accepted on 03 Jun 2018 and first published on 04 Jun 2018


Article type: Paper
DOI: 10.1039/C8NJ01807C
Citation: New J. Chem., 2018, Accepted Manuscript
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    Excellent photocatalytic degradation and disinfection performance of a novel bifunctional Ag@AgSCN nanostructure with exposed {-112} facets

    X. Zhao, X. Yi, S. Tian and J. Zhang, New J. Chem., 2018, Accepted Manuscript , DOI: 10.1039/C8NJ01807C

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