Preparation of La-BiVO4 catalyst and its photocatalytic reduction property of CO2

Wang Jianbo; Xu Yanfeng; Sun Yuan
September 2013
Chemical Engineering of Oil & Gas / Shi You Yu Tian Ran Qi Hua G;2013, Vol. 42 Issue 5, p478
Academic Journal
ZLa-BiVO4 photocatalyst was prepared by chemical precipitation method, and its photocatalytic reduction of CO2 in water was examined. The catalyst was characterized by TG-DTA, DRS and XRD technology, and the effect of roasting temperature and other conditions on he activity of photocatalytic reduction of CO2 were studied. The results showed that monoclinic phase La-BiVO4 calcined at 800 °C has the highest activity. When the amount of catalyst was 0. 8 g/L, reaction time was 8 h, CO2 flow was 250 mL/min, the reaction temperature was 70 °C, and he concentration of NaOH and Na2 SO3 were both 0. 10 mol/L, yield of methanol reached 290. 18 mol/g.


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