| 纳米TiO_2复合微粒的制备及应用 |
| |
| 引用本文： | 杨毅,李凤生.纳米TiO_2复合微粒的制备及应用[J].微纳电子技术,2002,39(2):18-21. |
| |
| 作者姓名： | 杨毅 李凤生 |
| |
| 作者单位： | 南京理工大学超细粉体与表面科学技术研究所,江苏,南京,210094 |
| |
| 基金项目： | 国家级科技成果重点推广计划(98010211A);江苏省科技发展基金项目(BF2000010) |
| |
| 摘 要： | 为了改善纳米半导体TiO2的分散性,制备了以微米级的PMMA塑料粒子为核心粒子的TiO2/PMMA复合微粒和以SiO2作为表面包覆的TiO2/SiO2复合粒子。通过对TiO2/PMMA进行紫外、SEM测试,发现由于TiO2粒子分散性的改善,复合微粒对紫外线的吸收能力为纳米TiO2与PMMA塑料粒子混合物的3～10倍。在对TiO2/SiO2进行TEM、XRD及比表面测试后,结果表明复合粒子是由4nm的SiO2膜和约12.6nm的TiO2核组成。
|
| 关 键 词： | 纳米TiO2 纳米复合材料 分散性 纳米半导体 |
| 文章编号： | 1671-4776(2002)02-0018-04 |
| 修稿时间： | 2001年10月4日 |
Preparation and application of nanometer TiO2 composite particles |
| |
| YANG Yi,LI Feng-sheng.Preparation and application of nanometer TiO2 composite particles[J].Micronanoelectronic Technology,2002,39(2):18-21. |
| |
| Authors: | YANG Yi LI Feng-sheng |
| |
| Abstract: | In order to improve the dispersion of nanometer semiconductor TiO 2 ,TiO 2 /PMMA and TiO 2 /SiO 2 composite particles were prepared.TiO 2 /PMMA composite particles are consisted of PMMA plastic core particles and nanometer TiO 2 particles,TiO 2 /SiO 2 are composed by SiO 2 cover film and nanometer TiO 2 core particles.By means of UV and SEM testing,it was found that the dispersion of TiO 2 in the TiO 2 /PMMA composite particles is improved remarkably.And the ultraviolet absorbency of TiO 2 /PMMA composite particles is3～10times of the mixture of nanometer TiO 2 with PMMA plastic particles.TEM,XRD and BET were employed to test the characteristics of TiO 2 /SiO 2. It was indicated that TiO 2 /SiO 2 composite particles are constituted by12.6nm TiO 2 core particles covered with4nm SiO 2 porous film. |
| |
| Keywords: | nanometer TiO 2 nanometer composite material dispersity nanometer semiconductor |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
