黑色TiO2纳米材料的制备+文献综述
毕业论文关键词：共沉淀法，纳米材料，黑色TiO2
The Preparation of Black TiO2 nanomaterial
Abstract: TiO2 nanomaterial is one of the most important inorganic functional materials and widely applied in many fields such as solar cells, electronic ceramics, humidity sensors, advanced sunscreen cosmetics and coatings due to its high surface activity, small size, surface effect、a peculiar small size effect and quantum effect. Recently, TiO2 nanomaterial has attracted much attention on photocatalytic field. In this study, Black TiO2 nanomaterial was prepared via the method of coprecipitation in liquid phase by using titanium trichloride, organic acid and hydrazine hydrate as raw materials. This synthetic method is simple to operate，low cost, and avoiding the shortage of traditional methods like complicated experimental condition. Moreover, EDX, SEM, UV-vis were used to characterized the as-prepared samples. Influences of reaction conditions including the kinds of organic acid, the dosage of hydrazine hydrate, the ratio of organic acid and titanium trichloride and calcination temperature, on the black degree and particle size of the products will be studied in this project. Finally, the primary reaction mechanism of the process will be deduced.
Key words: Coprecipitation method; Nanomaterial; Black TiO2
目录
1 绪论 1
1.1黑色TiO2纳米材料概述 1
1.2 功能及应用 1
1.3 黑色二氧化钛的合成 2
1.3.2钛粉还原二氧化钛法 3
1.3.3氢氧化钛氢气还原法 3
1.3.4 氢气还原二氧化钛法 3
1.3.5 其他还原气氛或还原剂下还原TiO2法 4
1.3.6 热分解法 5
1.3.7 化学气相沉积法 5
1.3.8 Ti-O直接电流烧结法 5
1.3.9 甲胺还原TiO2法 5
1.3.10等离子体还原法 5
1.4 研究意义与目的 6
2 实验部分 7
2.1 仪器与试剂 7
2.1.1 实验试剂 7
2.1.2 实验仪器 7
2.2 实验方法 8
2.2.1 黑色二氧化钛的制备 8
2.2.2 实验条件 8
2.2.3 样品的表征 9
3 实验结果与讨论 10
3.1 黑色TiO2的表征 10
3.1.1 EDX分析 10
3.1.2 扫描电镜图分析 10
3.1.3黑色TiO2的光学性能分析 11
3.2 采用不同酸源时的黑色TiO2 12
3.2.1 EDX分析 12
3.2.2扫描电镜图分析 14
3.2.3 黑色度分析 14
3.3采用不同水合肼的量的实验结果讨论 15
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