| 制备负载无机纳米颗粒的形状规整的微囊 |
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| 引用本文： | 刘正平,裴丽霞,纪红兵,姚兴东.制备负载无机纳米颗粒的形状规整的微囊[J].中国化学工程学报,2008,16(3):384-388. |
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| 作者姓名： | 刘正平 裴丽霞 纪红兵 姚兴东 |
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| 作者单位： | 1. The Key Laboratory of Enhanced Heat Transfer and Energy Conservation, Ministry of Education, School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou 510640, China;2. Shanghai Key Laboratory of Green Chemistry and Chemical Processes, Department of Chemistry, East China Normal University, Shanghai 200062, China;3. College of Chemistry & Ecological Engineering, Guangxi University for Nationalities, Nanning 530006, China |
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| 基金项目： | Supported by the National Natural Science Foundation of China （20576045） and the Program for New Century Excellent Talents in University （NCET-06-740）. |
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| 摘 要： | A facile and efficient method has been developed for microencapsulation of metal oxide nanoparticles in polyurea via interfacial polymerization of toluene-2,4-diisocyanate and H20 through the atomizing emulsification approach. The resultant microcapsules were well-shaped and uniform sphere with diameter ranging from 2 to 6 um. Thermogravimetry （TG） and differential scanning calorimetry （DSC） curves revealed that the microcapsules showed good thermal stability （no decomposition observed under 245℃）. Besides, the microencapsulated TiC2 has been used as an efficient catalyst for photocatalytic degradation of methyl orange. Furthermore, the photocatalysis of immobilized TiC2 could be enhanced by introducing UV absorbing agent to the wall of microcapsules.
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| 关 键 词： | encapsulation titanium dioxide microcapsule interfacial polymerization |
| 收稿时间： | 25 September 2007 |
| 修稿时间： | 2008-3-15
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Preparation of well-shaped microcapsule immobilizing inorganic nanoparticles |
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| LIU Zhengping,PEI Lixia,JI Hongbing,YAO Xingdong.Preparation of well-shaped microcapsule immobilizing inorganic nanoparticles[J].Chinese Journal of Chemical Engineering,2008,16(3):384-388. |
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| Authors: | LIU Zhengping PEI Lixia JI Hongbing YAO Xingdong |
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| Affiliation: | 1. The Key Laboratory of Enhanced Heat Transfer and Energy Conservation, Ministry of Education, School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou 510640, China;2. Shanghai Key Laboratory of Green Chemistry and Chemical Processes, Department of Chemistry, East China Normal University, Shanghai 200062, China;3. College of Chemistry & Ecological Engineering, Guangxi University for Nationalities, Nanning 530006, China |
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| Abstract: | A facile and efficient method has been developed for microencapsulation of metal oxide nanoparticles in polyurea via interfacial polymerization of toluene-2,4-diisocyanate and H2O through the atomizing emulsification approach. The resultant microcapsules were well-shaped and uniform sphere with diameter ranging from 2 to 6 μm. Thermogravimetry (TG) and differential scanning calorimetry (DSC) curves revealed that the microcapsules showed good thermal stability (no decomposition observed under 245°C). Besides, the microencapsulated TiO2 has been used as an efficient catalyst for photocatalytic degradation of methyl orange. Furthermore, the photocatalysis of immobilized TiO2 could be enhanced by introducing UV absorbing agent to the wall of microcapsules. |
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| Keywords: | encapsulation titanium dioxide microcapsule interfacial polymerization |
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