Preparation of Well-shaped Microcapsule Immobilizing Inorganic Nanoparticles

›› 2008, Vol. 16 ›› Issue (3): 384-388.

Preparation of Well-shaped Microcapsule Immobilizing Inorganic Nanoparticles

刘正平¹, 裴丽霞¹, 纪红兵^1,2, 姚兴东³

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

收稿日期:2007-09-25 修回日期:2008-03-15 出版日期:2008-06-28 发布日期:2008-06-28
通讯作者: JI Hongbing,E-mail:cehbji@scut.edu.cn
基金资助:
National Natural Science Foundation of China (20576045);the Program for New Century Excellent Talents in University (NCET-06-740)

Preparation of Well-shaped Microcapsule Immobilizing Inorganic Nanoparticles

LIU Zhengping¹, PEI Lixia¹, JI Hongbing^1,2, YAO Xingdong³

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

Received:2007-09-25 Revised:2008-03-15 Online:2008-06-28 Published:2008-06-28
Supported by:
National Natural Science Foundation of China (20576045);the Program for New Century Excellent Talents in University (NCET-06-740)

摘要/Abstract

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 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℃).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.

关键词: encapsulation, titanium dioxide, microcapsule, interfacial polymerization

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℃).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.

Key words: encapsulation, titanium dioxide, microcapsule, interfacial polymerization

刘正平, 裴丽霞, 纪红兵, 姚兴东. Preparation of Well-shaped Microcapsule Immobilizing Inorganic Nanoparticles[J]. , 2008, 16(3): 384-388.

LIU Zhengping, PEI Lixia, JI Hongbing, YAO Xingdong. Preparation of Well-shaped Microcapsule Immobilizing Inorganic Nanoparticles[J]. , 2008, 16(3): 384-388.

参考文献

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Preparation of Well-shaped Microcapsule Immobilizing Inorganic Nanoparticles

Preparation of Well-shaped Microcapsule Immobilizing Inorganic Nanoparticles

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