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题名: Surface Modification of Nano-TiO2 by Polyvinyl Pyrrolidone In Situ
作者: Zhang, Jin1; Chen, Chunfeng1; Yin, Fang1; Duan, Guangwen1; Fu, Yunzhi1, 2
关键词: nano-TiO2 ; PVP ; surface modification
刊名: SYNTHESIS AND REACTIVITY IN INORGANIC METAL-ORGANIC AND NANO-METAL CHEMISTRY
发表日期: 2016-08-02
卷: 46, 期:8, 页:1250-1253
收录类别: SCI
英文摘要: Materials with intricate nanostructures display fascinating properties, which have inspired extensive research on the synthesis of materials with controlled structures. In this study, hydrolysis and crystallization were used to prepare nano-TiO2 particles under the ambient pressure. The high surface energy of TiO2 leaded to the aggregation of nanoparticles. In order to optimize the production of nano-TiO2, factors such as the ratio of reactants and crystallization time were discussed. The surface modification of nano-TiO2 particles was necessary to improve their dispersibility in the organic solvent. Furthermore, the effect of surface modification with polyvinyl pyrrolidone on dispersibility and lipophilicity of nano-TiO2 particles were investigated. Fourier transform infrared spectroscopy, X-ray powder diffraction, and transmission electron microscopy were used for the characterization of particles. Optimal conditions were obtained to produce uniform size of hydrophobic nano-TiO2 particles.
语种: 英语
内容类型: 期刊论文
URI标识: http://ir.iccas.ac.cn/handle/121111/35902
Appears in Collections:其它_期刊论文

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作者单位: 1.Hainan Univ, Dept Mat & Chem Engn, Haikou 570228, Peoples R China
2.Chinese Acad Sci, Inst Chem, Key Lab Colloids & Surfaces, Beijing 100080, Peoples R China
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