钙钛矿La_(1-x)B_xCoO_3光催化降解SDBS的研究

Photocatalytic Degradation of SDBS by Pervoskite La_(1-x)B_xCoO_3

文章采用了溶胶-凝胶法制备了钙钛矿催化剂La1-x Bx CoO3(B=Mg、Ca、Sr;x=0,0.1,0.3,0.5,0.7,0.9,1)并以X衍射线对其结构进行表征,以甲基橙光催化降解率来评价所制备的催化剂的活性。结果表明SrCoO3对甲基橙的降解有较高的活性。在紫外光下,催化剂的量为2.5 g/L、pH=8.0、30%H2O2的量为2 mL/L,SrCoO3对SDBS溶液有较好的降解效果,降解率达到96%。

Pervoskite Lal_xBxCoO3 （B=Mg,Ca,Sr;x=0,0.1,0.3,0.5,0.7, 0.9,1） were prepared by using sol-gel and characterized by X-ray diffraction （XRD）. The photocatalytic activities of the catalysts were investigated for photocatalytic degradation of methyl orange. Results showed that the best activity was SrCoO3 for methyl orange. The degradation rate of SrCoO3 for SDBS was up to 96% with UV light,when the concentration of catalyst was 2.5 g/L,pH was at 8.0 and 30% H202 concentration was 2 mL/L.