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Issue 25, 2014
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A highly efficient visible-light driven photocatalyst: two dimensional square-like bismuth oxyiodine nanosheets

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Abstract

Two dimensional (2D) square-like bismuth oxyiodine (BiOI) nanosheets with a thickness of about 10 nm and exposed {001} facets are obtained by a facile hydrothermal route without any surfactant and special solvent. The photocatalytic performance of as-prepared 2D square-like BiOI nanosheets is evaluated by the photodegradation of rhodamine-B (RhB), methyl orange (MO) and phenol under visible-light irradiation. The products show highly efficient photocatalytic performance and good photostability and recyclability under visible light irradiation. The efficient visible-light driven photocatalytic activity can be ascribed to the thin 2D square shape nanosheet with exposed {001} facets, which provides an appropriate diffusion length and self-induced internal static electric field direction of BiOI, and improves the separation efficiency of photoinduced electron–hole pairs in BiOI nanosheets. Furthermore, the thin nanosheets that have a greater percentage of {001} facet exposure could induce stronger internal static electric fields, and improve the photocatalytic activity.

Graphical abstract: A highly efficient visible-light driven photocatalyst: two dimensional square-like bismuth oxyiodine nanosheets

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Publication details

The article was received on 17 Mar 2014, accepted on 17 Apr 2014 and first published on 17 Apr 2014


Article type: Paper
DOI: 10.1039/C4DT00798K
Citation: Dalton Trans., 2014,43, 9549-9556
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    A highly efficient visible-light driven photocatalyst: two dimensional square-like bismuth oxyiodine nanosheets

    Y. Mi, M. Zhou, L. Wen, H. Zhao and Y. Lei, Dalton Trans., 2014, 43, 9549
    DOI: 10.1039/C4DT00798K

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