【摘要】 论文采用机械涂覆法在直径为1 mm的氧化锆球体表面制备钛涂层，然后在500℃下烧结5 h制备了钛氧化物涂层。利用金相显微镜分析了钛涂层的截面形貌，并研究了不同球磨转速和球磨时间对钛涂层形成的影响。利用X射线衍射仪对钛氧化物涂层进行了物相分析并测定了不同涂层厚度和不同涂层用量的光催化性能。结果表明，球磨转速的增加会增加单位时间内球磨体系能量的输入，从而增加粉末材料的沉积率，使涂层增厚；在一定球磨时间内，涂层厚度随球磨时间增加而增加，且涂层光催化性能随涂层厚度增加而升高，最后趋于稳定；催化剂用量的增加会使溶液降解率增加，但过多催化剂用量会降低溶液降解率。当涂层为球磨30 h，用量为1 g/mL时，溶液降解率最佳，为88.4%，且涂层具有良好的可重复使用性。更多还原

【Abstract】 The titanium coatings were prepared by mechanical coating technology on the surface of ZrO₂ balls with 1 mm diameter,and then the titanium coatings were oxidized to titanium oxide coatings at 500 ℃ for 5 h. The cross-section morphology of titanium coatings were analyzed by metallographic microscope, and then the influence of different milling speed and milling time on the formation of coatings were studied. The phase composition of titanium oxide coatings were analyzed by X-ray diffractometer（XRD）, and the photocatalytic properties of different coating thicknesses and different coating dosages were measured. The results show that the increase of ball mill speed will increase the energy input of ball mill system per unit time, thus increasing the deposition rate of powder material and thickening the coatings. In a certain range of milling time, the coating thickness increases with the increase of milling time, and the photocatalytic performance of the coating increases with the increase of the coating thickness, and finally tended to be stable. The increase of catalyst dosage will increase the degradation rate of solution, but too much catalyst dosage will decrease the degradation rate of solution. The best photocatalytic performance of the coatings is 88.4% when the milling time is 30 h and the dosage is 1 g/mL. And the coatings have a good reusability.更多还原