| 基于膜射流乳化技术的TiO2大孔陶瓷制备方法研究 |
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| 引用本文： | 景文珩,吴守红,薛业建,金万勤,邢卫红,徐南平.基于膜射流乳化技术的TiO2大孔陶瓷制备方法研究[J].中国化学工程学报,2007,15(4):616-618. |
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| 作者姓名： | 景文珩 吴守红 薛业建 金万勤 邢卫红 徐南平 |
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| 作者单位： | Membrane Science ＆ Technology Research Center, Key Laboratory of Material-oriented Chemical Engineering ofJiangsu Province ＆MOE, Nanjing University of Technology, Nanjing 210009, China |
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| 基金项目： | 国家高技术研究发展计划(863计划)，国家博士后科学基金，国家重点基础研究发展计划(973计划)，国家自然科学基金，江苏省自然科学基金，江苏省博士后科学基金 |
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| 摘 要： | A novel method to prepare macroporous TiO2 ceramic, based on membrane emulsification was reported.To solve the paradox between the instability of nonaqueous emulsion and long emulsification time required by themembrane emulsification, a two-stage ceramic membrane jet-flow emulsification .was. proposed. Discussion wasconducted on the evolution of droplet size with time, which followed the Ostwalcl npemng theory. And a monodispersed nonaqueous emulsion with an average droplet size of 1.6μm could beprepared. Using the emulsion, as atemplate, TiO2 ceramics with an average pore size ot 1.1 μm were obtaineed. Tne material could be prospectivelyused for preparation of catalysts, adsorbents, and membranes.
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| 关 键 词： | 非水乳状液 陶瓷制品 隔膜乳化作用 射流 |
| 收稿时间： | 19 December 2006 |
| 修稿时间： | 2006-12-19 |
Preparation of macroporous TiO2 ceramic based on membrane jet-flow emulsification |
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| JING Wenheng,WU Shouhong,XUE Yejian,JIN Wanqin,XING Weihong,XU Nanping.Preparation of macroporous TiO2 ceramic based on membrane jet-flow emulsification[J].Chinese Journal of Chemical Engineering,2007,15(4):616-618. |
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| Authors: | JING Wenheng WU Shouhong XUE Yejian JIN Wanqin XING Weihong XU Nanping |
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| Affiliation: | aMembrane Science & Technology Research Center, Key Laboratory of Material-oriented Chemical Engineering of Jiangsu Province &MOE, Nanjing University of Technology, Nanjing 210009, China |
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| Abstract: | A novel method to prepare macroporous TiO2 ceramic, based on membrane emulsification was reported.To solve the paradox between the instability of nonaqueous emulsion and long emulsification time required by the membrane emulsification, a two-stage ceramic membrane jet-flow emulsification was proposed. Discussion was conducted on the evolution of droplet size with time, which followed the Ostwald ripening theory. And a monodispersed nonaqueous emulsion with an average droplet size of 1.6μm could be prepared. Using the emulsion as a template, TiO2 ceramics with an average pore size of 1.1μm were obtained. The material could be prospectively used for preparation of catalysts, adsorbents, and membranes. |
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| Keywords: | nonaqueous emulsion ceramic membrane emulsification jet-flow |
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