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Issue 2, 2015
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Superior optical properties of Fe3+–W18O49 nanoparticles prepared by solution combustion synthesis

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Abstract

Modification by metal-doping allows the design of new nanomaterials with enhanced optical properties. In this paper, the photocatalytic effects of Fe3+-doped W18O49 nanorods prepared by solution combustion synthesis were studied for the first time. The Fe3+-doped W18O49 powders were investigated by X-ray diffraction, high-resolution transmission electron microscopy, selected area electron diffraction, and X-ray photoelectron spectroscopy. The powders were well-crystalline with diameters ranging from 50 nm to 250 nm and the length decreasing from more than 10 μm to 4 μm on average. The photoluminescence (referred to as PL here after) spectrum showed that the emission intensity increased with increasing Fe3+ doping, suggesting that more defects were generated. Moreover, this novel composite catalyst displayed excellent photocatalytic efficiency towards the degradation of organic compounds in aqueous media under UV-visible light irradiation. In particular, 0.5 wt% Fe3+-doped W18O49 had the best photocatalytic efficiency. This improvement was mainly attributed to the synergistic effect between Fe3+ and W18O49 nanopowders and the defects in the nanostructure caused by doping.

Graphical abstract: Superior optical properties of Fe3+–W18O49 nanoparticles prepared by solution combustion synthesis

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Publication details

The article was received on 07 Aug 2014, accepted on 22 Oct 2014 and first published on 14 Nov 2014


Article type: Paper
DOI: 10.1039/C4NJ01325E
New J. Chem., 2015,39, 1196-1201

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    Superior optical properties of Fe3+–W18O49 nanoparticles prepared by solution combustion synthesis

    P. Chen, M. Qin, Y. Liu, B. Jia, Z. Cao, Q. Wan and X. Qu, New J. Chem., 2015, 39, 1196
    DOI: 10.1039/C4NJ01325E

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