화학공학소재연구정보센터
Industrial & Engineering Chemistry Research, Vol.52, No.49, 17414-17418, 2013
Evaluation of the Parameters Affecting the Visible-Light-Induced Photocatalytic Activity of Monoclinic BiVO4 for Water Oxidation
Monoclinic BiVO4 powders have been synthesized by means of homogeneous coprecipitation, followed by calcination at different temperatures. The effect of the calcination temperature on the changes in the physicochemical parameters has been evaluated. It has been deduced that the crystallite size and band gap are responsible for water oxidation. The effect of calcination temperatures on the variations, such as lone pair distortions on Bi3+ and changes in the V-O bond length in the local structure of BiVO4, has also been confirmed from the changes in the intensities and the shift of the peak position in the Raman analysis.