1 摘要：近年来，纳米二氧化钛粉体作为一种良好的光催化剂在很多领域被广泛应用，但其性能仍然存在一定的缺陷，本实验制得的复合材料旨在提高二氧化钛粉体的分散性，增强该粉体的光催化性能。实验主要通过配制一定浓度的聚乙烯醇溶液，再以泡沫镍片、聚乙烯醇溶液和定量的纳米二氧化钛粉体为原料通过混合搅拌、涂匀、烘干、干烧制备聚乙烯醇/二氧化钛复合材料;采用 X 射线衍射对该复合材料进行了系统的分析和表征；以罗丹明 B 为目标污染物，探究在太阳光下该复合材料对罗丹明 B 的降解效果。关键词：聚乙烯醇 二氧化钛 罗丹明 B 复合材料 光催化降解题目（中文）聚乙烯醇 / 二氧化钛复合材料的光催化性 能研究 2Abstract:In recent years, nanometer titanium dioxide powder has been widely used as a good photocatalyst in many fields, but its performance still has some defects. The composite material prepared in this experiment aims to improve the dispersion of titanium dioxide powder and enhance its photocatalytic performance. In this experiment, a certain concentration of polyvinyl alcohol solution was prepared, and then polyvinyl alcohol foam sheet, polyvinyl alcohol solution and quantitative nanometer titanium dioxide powder were used as raw materials to prepare polyvinyl alcohol/titanium dioxide composites by mixing, coating, drying and firing. Rhodamine B was used as the target pollutant to explore the degradation effect of the composite on Rhodamine B under sunlight.Key words: polyvinyl alcohol; Titanium dioxide; ; Rhodamine B; Composite material;Photocatalytic degra-dation3目录..................................................................1...............................................................................................................................................1.............................................................................................................1.......................................................................................
