精品文档---下载后可任意编辑高岭土/TiO2 纳米复合材料的制备与光学性质讨论的开题报告摘要：本文讨论了高岭土/TiO2 纳米复合材料的制备方法和其光学性质。制备过程采纳水热法合成，以高岭土为载体分别掺杂不同质量分数的钛酸四丁酯和乙醇水溶液，制备了一系列不同组成的高岭土/TiO2 纳米复合材料。通过 X 射线衍射仪、扫描电子显微镜等技术对复合材料的形貌及晶体结构进行表征。结果表明，复合材料的晶粒大小随着钛酸四丁酯质量分数的增加而增大，纳米颗粒的分散效果也随之减弱。通过紫外-可见吸收光谱和荧光光谱分析样品的光学性质。当钛酸四丁酯的质量分数为5%时，复合材料表现出最强的吸光度和荧光强度，并显示出优异的荧光性能。关键词：高岭土/TiO2 纳米复合材料，制备，光学性质。Abstract:In this paper, the preparation method and optical properties of kaolin/TiO2 nanocomposites were studied. The preparation process was synthesized by hydrothermal method, using kaolin as the carrier, and doping different mass fractions of tetrabutyl titanium and ethanol water solution respectively, to prepare a series of kaolin/TiO2 nanocomposites with different compositions. The morphology and crystal structure of the composites were characterized by X-ray diffractometry and scanning electron microscopy. The results show that the grain size of the composites increases and the dispersion effect of the nanoparticles weakens with the increase of tetrabutyl titanium mass fraction. The optical properties of the samples were analyzed by UV-visible absorption spectrum and fluorescence spectrum. When the mass fraction of tetrabutyl titanium was 5%, the composite material showed the strongest absorbance and fluorescence intensity, and excellent fluorescence performance was displayed.Keywords:kaolin/TiO2 nanocomposites, preparation, optical properties.
