以钠基膨润土为载体,硝酸铅[Pb(NO3)2]和结晶四氯化锡(SnCl45H_2O)为原料,采用水热合成法制备出PbSnO3/膨润土复合光催化剂。以甲基橙为目标降解物,在自然光照条件下,研究PbSnO3/膨润土复合光催化剂对甲基橙的脱色性能,实验表明:光照时间30min,催化剂用量为50mg/L,膨润土负载比为5%时脱色率达到91%以上。 PbSnO3 / bentonite composite photocatalyst was prepared by hydrothermal method using sodium bentonite as support, lead nitrate [Pb (NO3) 2] and crystalline tin tetrachloride (SnCl45H2O) as raw materials. Degradation of methyl orange with PbSnO3 / bentonite composite photocatalyst was studied under natural light conditions using methyl orange as degradation product. The results showed that the irradiation time was 30 min, the dosage of catalyst was 50 mg / L, the loading ratio of bentonite was 5% When the decolorization rate of 91% or more.