介绍了用不同起始浓度环己烷的乙腈溶液进行光催化实验，并对纳米二氧化钛上环己烷光催化氧化反应的动力学进行了研究．从反应的初始浓度与光催化氧化产物的初始生成速率的关系上得出：光催化氧化反应的动力学符合ＬａｎｇｍｕｉｒＨｉｎｓｈｅｌｗｏｏｄ动力学模型，并以产物的生成速率倒数对反应物初始浓度的倒数作图得到一线性关系，从另一侧面说明ＬＨ模型的正确．进一步的研究表明：无机盐离子及分子氧的浓度对该反应有较大的影响 The photocatalytic experiments of acetonitrile with different initial concentrations of cyclohexane were introduced. The kinetics of photocatalytic oxidation of cyclohexane on nano-sized titanium dioxide was also studied. From the relationship between the initial concentration of the reaction and the initial rate of photocatalytic oxidation, the kinetics of photocatalytic oxidation follows the Langmuir-Hinshelwood kinetic model and the inverse of the initial concentration of the reactant The graph shows a linear relationship, indicating that the L-H model is correct from the other side. Further research shows that: the concentration of inorganic ions and molecular oxygen have a greater impact on the reaction