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采用正交试验方法,调控Ti（SO4）2原料浓度、沉淀剂NH4HCO3浓度、沉淀pH值、焙烧温度和焙烧时间等制备条件制备得到了25个锐钛矿相TiO2光催化剂.对TiO2光催化降解十二烷基苯磺酸钠（SDBS）的催化活性与TiO2锐钛矿相10个晶面的法向粒子尺寸、晶格畸变应力、X射线衍射强度之间的关系进行了分析.发现TiO2光催化SDBS的降解遵循一级反应动力学;其主要影响因素为（101）晶面结晶情况,而与其余晶面的相关性不大;光催化反应需要晶格畸变较少的结晶较完整的（101）晶面;晶粒尺寸减小,比表面积增大有利于提高反应速率;光催化反应过程主要在结晶的锐钛矿相（101）晶面表面上发生,而无定形TiO2催化活性较低.
Twenty-five anatase phase TiO2 photocatalysts were prepared by orthogonal test to control the concentration of Ti (SO4) 2, the concentration of NH4HCO3, the pH value, the calcination temperature and the calcination time.The photocatalytic activity of TiO2 photocatalytic degradation The relationship between the catalytic activity of sodium dodecylbenzenesulfonate (SDBS) and the normal particle size, lattice distortion stress and X-ray diffraction intensity of 10 anatase TiO2 crystal planes was analyzed. It was found that TiO2 light The degradation of SDBS obeys the first-order reaction kinetics. The main influencing factors are the crystallization of (101) crystal plane, but not the correlation with the other crystal planes. The photocatalytic reaction requires less crystalline lattice distortion 101) crystal plane. The decrease of the grain size and the increase of the specific surface area are favorable for increasing the reaction rate. The photocatalytic reaction mainly occurs on the surface of the crystalline (101) crystalline anatase phase, while the amorphous TiO2 has a lower catalytic activity .