p-Aminophenylacetic acid-mediated synthesis of monodispersed titanium oxide hybrid microspheres in ethanol solution
文献类型：期刊论文
| 作者 | Zhang, Hongye; Xie, Yun; Liu, Zhimin; Tao, Ranting; Sun, Zhenyu; Ding, Kunlun; An, Guimin |
| 刊名 | JOURNAL OF COLLOID AND INTERFACE SCIENCE
 |
| 出版日期 | 2009-10-15 |
| 卷号 | 338期号:2页码:468-473 |
| 关键词 | Tio(2) Hybrid Spheres Synthesis |
| ISSN号 | 0021-9797 |
| DOI | 10.1016/j.jcis.2009.06.046 |
| 英文摘要 | Monodispersed TiO(2) hybrid microspheres were prepared via the hydrolysis of titanium isopropoxide (TTIP) in ethanol solution containing p-aminophenylacetic acid (APA). The effects of the APA: TTIP molar ratio, water content, reaction time and reaction temperature on the morphology of the resultant spheres were investigated. The products were characterized by scanning electron microscopy, transmission electron microscopy, Fourier transform infrared spectroscopy, thermogravimetric analysis, and X-ray diffraction. It was demonstrated that the diameters of the resultant TiO(2) spheres could be tuned in the range of 380-800 nm by changing the APA: TTIP molar ratio (1:3 to 3:1) and water content (1-3 v/v%) in the reaction medium, and that increasing the APA: TTIP molar ratio led to larger TiO(2) hybrid spheres while increasing the water content decreased their size. The loading content of APA in the hybrid spheres could reach 20 wt.% as they were prepared with the APA: TTIP ratio of 3:1. The possible formation mechanism of the hybrid spheres was also investigated. It was found that APA slowed down the hydrolysis rate of the titanium precursor so that resulted in the formation of the TiO(2) spheres. In addition, the APA present in TiO(2) spheres acted as a reducing agent to in situ convert HAuCl(4) into metallic Au on the surface of the TiO(2) spheres. The catalytic activity of the resultant Au/APA-TiO(2) composite was examined using transfer hydrogenation of phenylacetone with 2-propanol, and it was indicated that the catalyst displayed high efficiency for this reaction. (C) 2009 Elsevier Inc. All rights reserved. |
| 语种 | 英语 |
| WOS记录号 | WOS:000272262700018 |
| 出版者 | ACADEMIC PRESS INC ELSEVIER SCIENCE |
| 源URL | [http://ir.iccas.ac.cn/handle/121111/67459]  |
| 专题 | 中国科学院化学研究所 |
| 通讯作者 | Liu, Zhimin |
| 作者单位 | Chinese Acad Sci, Inst Chem, Beijing Natl Lab Mol Sci, Beijing 100190, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zhang, Hongye,Xie, Yun,Liu, Zhimin,et al. p-Aminophenylacetic acid-mediated synthesis of monodispersed titanium oxide hybrid microspheres in ethanol solution[J]. JOURNAL OF COLLOID AND INTERFACE SCIENCE,2009,338(2):468-473. |
| APA | Zhang, Hongye.,Xie, Yun.,Liu, Zhimin.,Tao, Ranting.,Sun, Zhenyu.,...&An, Guimin.(2009).p-Aminophenylacetic acid-mediated synthesis of monodispersed titanium oxide hybrid microspheres in ethanol solution.JOURNAL OF COLLOID AND INTERFACE SCIENCE,338(2),468-473. |
| MLA | Zhang, Hongye,et al."p-Aminophenylacetic acid-mediated synthesis of monodispersed titanium oxide hybrid microspheres in ethanol solution".JOURNAL OF COLLOID AND INTERFACE SCIENCE 338.2(2009):468-473. |
入库方式： OAI收割
来源：化学研究所
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