以五水硝酸铋、KX（X=Cl、Br、I）、硅藻土为原料,采用水热法合成负载有BiOX（Br、I、Cl）的新型硅藻土光催化材料,并进行了XRD和SEM表征分析,同时采用罗丹明B为目标降解物,以50 W LED紫光/蓝光灯为光源考察了制备光催化剂的可见光光催化性能﹒结果表明,制备的Bi OX/硅藻土复合催化剂均有可见光催化活性,PVP辅助条件下制备的BiOI/硅藻土具有最佳的光催化活性,罗丹明B初始浓度15 mg/L,催化剂用量0.15 g,LED蓝光照射50 min,降解率达到96%﹒
摘要(英文)：
By the method of hydro-thermal, BiOX（X=C1, Br, I）/diatomite composite photocatalyst was synthesized using diatomite as supporter and Bi（NO3）3,SH20, KX（X=CI, Br, I） as precursor. The as-prepared samples were characterized by X-ray diffraction （XRD）, scanning electron microscopy（SEM）. The photocatalytic property of composite was investigated by Rhodamine B as a target pollutant under 50 W UV/BL LED light irradiation. The results indicated that all of the composite photocatalysts had photocatalytic activity and the BiO1/diatomite composi...
