| 羧基功能化离子液体表面修饰TiO2纳米微粒的制备及结构表征 |
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| 引用本文： | 张晟卯,李健,吴志申,张平余,张治军.羧基功能化离子液体表面修饰TiO2纳米微粒的制备及结构表征[J].高等学校化学学报,2006,27(9):1615-1617. |
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| 作者姓名： | 张晟卯 李健 吴志申 张平余 张治军 |
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| 作者单位： | 河南大学特种功能材料重点实验室,开封,475001 |
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| 基金项目： | 国家自然科学基金(批准号:20401006)，河南省自然科学基金(批准号:2004430003,200510475019)资助 |
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| 摘 要： | 本文用沉淀法制备了羧基功能化离子液体表面修饰半导体TiO2纳米颗粒, 并用FTIR, TEM, XRD和XPS对其结构进行了表征. 初步探讨了羧基功能化离子液体修饰TiO2纳米微粒的形成机理.
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| 关 键 词： | 羧基功能化离子液体 TiO2纳米微粒 螯合作用 表面修饰 |
| 文章编号： | 0251-0790（2006）09-1615-03 |
| 收稿时间： | 08 24 2005 12:00AM |
| 修稿时间： | 2005-08-24 |
Preparation and Structural Characterization of Carboxyl-functional Ionic Liquidsurface-modified TiO2 Nanoparticles |
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| ZHANG Sheng-Mao,LI Jian,WU Zhi-Shen,ZHANG Ping-Yu,ZHANG Zhi-Jun.Preparation and Structural Characterization of Carboxyl-functional Ionic Liquidsurface-modified TiO2 Nanoparticles[J].Chemical Research In Chinese Universities,2006,27(9):1615-1617. |
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| Authors: | ZHANG Sheng-Mao LI Jian WU Zhi-Shen ZHANG Ping-Yu ZHANG Zhi-Jun |
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| Institution: | Key Lab for Special Functional Material, Henan University, Kaifeng 475001, China |
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| Abstract: | 1-Methyl-3-carboxymethyl imidazolium chlorine(C2OOHmim]Cl) ionic liquid surface\|capped TiO2 nanoparticles were prepared by using tetra-n-butyl titanate ethanol solution as a precursor. The structure of nanoparticles was characterized by FTIR, TEM, XRD and XPS. The results confirmed that C2OOHmim]·Cl ionic liquid combined with TiO2 nanoparticles by chelation, the average diameter of TiO2 nanoparticles was about 8 nm and anatase state was obtained. And only anatase existed even after calcinated at 750 ℃. As to the formation mechanism, we think that the inorganic-organic copolymerized surface-capped layer and repulsive force of positive charge played an important role in the formation and stabilization of TiO2 nanoparticles. |
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| Keywords: | Carboxyl-functionalized ionic liquid TiO_2 nanoparticles Chelation Surface-modification |
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