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Obregó,n, Sergio,Lee, Soo W.,Coló,n, Gerardo The Royal Society of Chemistry 2014 Dalton Transactions Vol.43 No.1
<P>Er-doped BiVO<SUB>4</SUB> are synthesized by means of a surfactant free microwave assisted hydrothermal method having good photoactivities under sun-like excitation for the degradation of methylene blue. From the structural and morphological characterization, it has been stated that the presence of Er<SUP>3+</SUP> induces a slight stabilization of the tetragonal phase, probably due to its incorporation in the BiVO<SUB>4</SUB> lattice. The best photocatalytic performances were attained for the samples with Er<SUP>3+</SUP> content higher than 3 at%. The occurrence of the Er<SUP>3+</SUP> doped tetragonal BiVO<SUB>4</SUB> clearly induces higher photocatalytic activities. The existence of a luminescence process has been related with the enhanced photoactivity observed.</P> <P>Graphic Abstract</P><P>Er<SUP>3+</SUP> doped t-BiVO<SUB>4</SUB> photocatalysts have been prepared by a microwave assisted hydrothermal method having improved solar-like photocatalytic activity. A cooperative mechanism is proposed in which the photocatalyst would efficiently exploit the wide range of the visible irradiation. <IMG SRC='http://pubs.rsc.org/services/images/RSCpubs.ePlatform.Service.FreeContent.ImageService.svc/ImageService/image/GA?id=c3dt51923f'> </P>
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