以海泡石为载体，硝酸铋、氯化钾为原料，十二烷基苯磺酸钠（SDBS）为表面活性剂，采用简单的水热法制备出1种三维花状的BiOCl/海泡石复合光催化剂。利用SEM、XRD、BET、UV-Vis DRS和FT-IR对其进行表征，考察了BiOCl与海泡石质量比、催化剂质量浓度、初始pH、双酚A（BPA）初始质量浓度等因素对BPA降解率的影响。实验结果表明，当复合催化剂中海泡石质量分数为10%、催化剂质量浓度为1 g/L、pH=6、BPA初始质量浓度为10 mg/L时，BPA的降解效率最佳。且最佳质量比的复合光催化剂具有较高的稳定性能，重复使用3次后对BPA的降解率仍保持95%以上。

A kind of three-dimensional flower-like BiOCl/sepiolite composite photocatalyst is synthesized via a facile hydrothermal route, using sepiolite as carrier, bismuth nitrate and potassium chloride as raw materials, and sodium dodecyl benzene sulfonate (SDBS) as surfactant.It is characterized by means of SEM, XRD, BET, UV-Vis DRS and FT-IR.The effects of the mass ratio of BiOCl to sepiolite, the concentration of catalyst, initial pH and the initial concentration of bisphenol A (BPA) on the degradation rate of BPA are also investigated.The results verify that the degradation efficiency of BPA can reach the best when the content of sepiolite in the composite catalyst is 10%, the concentration of catalyst is 1 g·L^-1, pH is 6 and the initial concentration of BPA is 10 mg·L^-1.Moreover, the composite photocatalyst with the optimal ratio exhibits higher photocatalytic stability and can make the degradation rate of BPA remain above 95% after being used for 3 times.

汤敏(1989-),女,硕士,研究方向为光催化材料的制备与应用,474309616@qq.com。