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Synthesis and characterization of Y3+-doped TiO2 nanocomposites for photocatalytic applications

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dc.contributor.author Macheli, Lebohang
dc.contributor.author Narayan, Himanshu
dc.contributor.author Alemu, Hailemichael
dc.contributor.author Gundu Rao, T. K.
dc.contributor.author Thakurdesai, Madhavi
dc.date.accessioned 2016-12-08T16:55:26Z
dc.date.available 2016-12-08T16:55:26Z
dc.date.issued 2009
dc.identifier.issn 1361-6528 (e)
dc.identifier.issn 0957-4484 (p)
dc.identifier.uri http://repository.tml.nul.ls/handle/123456789/1148
dc.description.abstract The TiO2·[Y2O3]x (x = 0.1–0.4) nanocomposites (NCs) with an average particle size of 74 nm were prepared by the method of chemical co-precipitation followed by hydrolysis (CPH). Their visible light photocatalytic activity was investigated for the degradation of congo red (CR) dye. All NCs showed improved degradation as compared to the polycrystalline samples of similar compositions prepared by the solid-state reaction (SSR) route (average particle size of a few micrometers), as well as to the pure TiO2. The better photocatalytic activity of the NCs was attributed to their smaller particle size. Another comparison of the results with those obtained with Zn2+/Fe3+ ions co-doped TiO2 NCs, under similar experimental conditions, revealed that in the Y3+-doped NCs, particle size might not be the only factor responsible for the improved photocatalytic properties. It was concluded that the Y3+ ion-mediated suppression of the unwanted e−/h+ recombination could be the possible factor leading to additional enhancement. en_ZA
dc.language.iso en en_ZA
dc.publisher IOP Publishing Ltd en_ZA
dc.rights Copyright 2009 IOP Publishing Ltd en_ZA
dc.source Nanotechnology, Volume 20, Number 25 (2009) en_ZA
dc.title Synthesis and characterization of Y3+-doped TiO2 nanocomposites for photocatalytic applications en_ZA
dc.type Article en_ZA


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