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Controlled synthesis of Bi25FeO40 with different morphologies: growth mechanism and enhanced photo-Fenton catalytic properties

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Abstract

Bi25FeO40 microtetrahedra, microcubes and microspheres were successfully synthesized by a simple hydrothermal process and by adding different additive agents. The formation mechanism of Bi25FeO40 microcrystals was proposed; the additive agents had important influences on the morphology and facet exposure of the products. The catalytic activity of these materials was evaluated by the degradation of RhB in a heterogeneous photo-Fenton process. The Bi25FeO40 microcubes showed enhanced photo-Fenton catalytic activity, which can be attributed to an exposed {001} facet with the active O atoms. The hydroxyl radicals are the main active group in the heterogeneous photo-Fenton catalytic degradation. This study may provide a new method to design and synthesize novel nanoscale and microscope functional materials.

Graphical abstract: Controlled synthesis of Bi25FeO40 with different morphologies: growth mechanism and enhanced photo-Fenton catalytic properties

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Publication details

The article was received on 25 Dec 2016, accepted on 28 Jan 2017 and first published on 30 Jan 2017


Article type: Paper
DOI: 10.1039/C6DT04864A
Citation: Dalton Trans., 2017, Advance Article
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    Controlled synthesis of Bi25FeO40 with different morphologies: growth mechanism and enhanced photo-Fenton catalytic properties

    W. Ji, M. Li, G. Zhang and P. Wang, Dalton Trans., 2017, Advance Article , DOI: 10.1039/C6DT04864A

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