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Issue 4, 2014
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Dendritic α-Fe2O3 hierarchical architectures for visible light driven photocatalysts

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Abstract

Large scale dendritic α-Fe2O3 hierarchical structures are successfully obtained through a facile hydrothermal approach. The morphology and microstructure of the as-synthesized products are characterized using scanning electron microscopy (SEM) and transmission electron microscopy (TEM). The individual α-Fe2O3 dendrite consists of a long central trunk with secondary and tertiary branches, which preferentially grow in a parallel direction with a definite angle to the trunk. A possible formation mechanism for the as-prepared product is proposed. Photocatalytic experimental results indicate that Congo red (CR) can be degraded nearly completely (over 95%) after 45 min under visible light irradiation. Also, degradation efficiencies of the α-Fe2O3 products with different morphologies toward CR were investigated, revealing that the dendritic structures possess superior photocatalytic activity. The as-synthesized dendritic α-Fe2O3 products may have potential application in wastewater treatment.

Graphical abstract: Dendritic α-Fe2O3 hierarchical architectures for visible light driven photocatalysts

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Publication details

The article was received on 02 Oct 2013, accepted on 07 Nov 2013 and first published on 14 Nov 2013


Article type: Paper
DOI: 10.1039/C3CE41994K
CrystEngComm, 2014,16, 575-580

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    Dendritic α-Fe2O3 hierarchical architectures for visible light driven photocatalysts

    Y. Jiao, Y. Liu, F. Qu and X. Wu, CrystEngComm, 2014, 16, 575
    DOI: 10.1039/C3CE41994K

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