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Issue 41, 2014
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Facile synthesis of WO3 with reduced particle size on zeolite and enhanced photocatalytic activity

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Abstract

WO3 supported on zeolite-Y (WO3-ZY) was successfully synthesized by a facile impregnation method and well characterized by various techniques. The photocatalytic activity of the prepared catalysts was investigated for the degradation of Rhodamine B (RhB) under visible, UV and solar light irradiation. The enhanced photocatalytic activity was observed for the catalyst WO3-ZY, which may be due to the presence of more active sites that can adsorb a greater number of dye molecules. The TEM, FESEM and adsorption studies confirm that the WO3 supported on zeolite-Y has a very small particle size of about 8 nm compared with the bare WO3 at 97 nm. The efficient electron–hole pair separation and the role of active species were investigated by photoluminescence spectroscopy and the test of the effect of scavengers, respectively. The mechanism for the photocatalytic degradation of RhB was proposed and the pathway of RhB degradation was illustrated schematically.

Graphical abstract: Facile synthesis of WO3 with reduced particle size on zeolite and enhanced photocatalytic activity

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Publication details

The article was received on 17 Feb 2014, accepted on 11 Apr 2014 and first published on 15 Apr 2014


Article type: Paper
DOI: 10.1039/C4RA01376J
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RSC Adv., 2014,4, 21221-21229

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    Facile synthesis of WO3 with reduced particle size on zeolite and enhanced photocatalytic activity

    K. Jothivenkatachalam, S. Prabhu, A. Nithya and K. Jeganathan, RSC Adv., 2014, 4, 21221
    DOI: 10.1039/C4RA01376J

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