A simple and very effective method is proposed for the removal of Bisphenol A (BPA) under visible light using mesoporous TiO₂-SiO₂ nanocomposite. The material was characterized using FTIR, XRD, DRS, XPS, FESEM, HRTEM, and BET techniques. The photo degradation efficiency of TiO₂-SiO₂ compared with bare TiO₂. The effect of calcination temperature on the photo-degradation of the materials is also studied. The radical intermediates formed during the degradation of BPA were followed with different radical scavengers. The solution after reaction is subjected to TOC (Total Organic Carbon content) and LCMS analysis to determine the mineralization rate and degradation products exist in the solution. Kinetic studies were revealed that the degradation process follow pseudo first order kinetics.

提出了一种简单高效的介孔TiO ₂ -SiO ₂纳米复合材料去除双酚A（BPA）的方法。使用FTIR，XRD，DRS，XPS，FESEM，HRTEM和BET技术对材料进行表征。TiO ₂ -SiO ₂与裸露TiO ₂相比的光降解效率。还研究了煅烧温度对材料光降解的影响。在BPA降解过程中形成的自由基中间体与不同的自由基清除剂保持一致。反应后的溶液进行TOC（总有机碳含量）和LCMS分析，以确定溶液中的矿化速率和降解产物。动力学研究表明，降解过程遵循伪一级动力学。