화학공학소재연구정보센터
Catalysis Today, Vol.284, 84-91, 2017
Unexpected rapid photo-catalytic decolourisation/degradation of organic pollutants over highly active hetero junction based vanadium phosphate catalyst
VPO materials are extensively used the in gas phase oxidation of n-butane to maleic anhydride. Herein we explored its catalytic activity towards decolourisation/degradation of organic pollutants. This investigation reports the remarkable photo catalytic activity of tungstate promoted vanadium phosphate (WO3-VPO) toward photocatalyic decolourisation/degradation of pollutants. The catalyst i.e. 10 wt% WO3-VPO showed unexpected efficacy i.e. 100% decolourisation of Rhodamine B (RhB) and 60% degradation of phenol under visible light irradiation with a short span of time i.e. 10 min. Several factors involving the significant results of the composite material than the neat sample have been studied in detail. The analysis of photoluminescence (PL) emission spectra, photoelectrochemical measurement and the cyclic voltammeter (CV) measurement of the composite materials greatly support the outstanding results of the catalyst. The remarkable efficiency of VPO materials in photocatalytic decolourisation/degradation would become another trademark in the photocatalysis society. (C) 2016 Elsevier B.V. All rights reserved.