采用 Triton X-100/正己醇/环己烷/水的微乳体系合成了一系列BiOITiO2的纳米材料，分析了其晶体结构、表面结构和光谱特征，探讨了可见光光催化降解双酚A废水的可行性.结果表明： BiOI-TiO2的分散性能好、比表面积大.光催化结果表明，复合材料中BiOI与TiO2的摩尔比对光催化性能影响很大且比值达到75%时效果最好，光催化降解机理符合一级动力学方程，反应速率常数（kobs）与催化剂投加量及初始pH值有关.催化剂重复多次使用的降解效果稳定.
This study synthesized a series of nanosized BiOITiO2 catalysts to photodegrade Bisphenol-A (BPA) solution. The BiOITiO2 nanoparticles were synthesized in reverse microemulsions, consisting of cyclohexane, Triton X-100, n-hexanol and aqueous salt solutions. The synthesized particles were characterized by X-ray diffraction (XRD), BrunauerEmmettTeller (BET) surface analyzer and ultravioletvisible light (UVVis) absorption spectra. The photodegradation of bisphenol A in aqueous suspension under visible light irradiation was investigated to explore the feasibility of using the photocatalytic method to treat BPA wastewater. The effects of different molar ratios of BiOI to TiO2 on the photocatalytic activities of BiOITiO2 composites were discussed. The experimental results revealed that the photocatalytic activity of the BiOI-TiO2 particles were superior to the commercial P25 TiO2. The BPA degradation could be approached by a pseudo-?rst order rate expression. The observed reaction rate constant (kobs) was related to nanoparticles dosage and initial pH. The recycling experiments confirmed the relative stability of the catalyst.