Preparation of Well-shaped Microcapsule Immobilizing Inorganic Nanoparticles

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 diam...

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Bibliographic Details
Published in:Chinese journal of chemical engineering 2008-06, Vol.16 (3), p.384-388
Main Author: 刘正平 裴丽霞 纪红兵 姚兴东
Format: Article
Language:English
Subjects:
制备方法
形状规整
无机纳米颗粒
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Summary: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.
ISSN:1004-9541
2210-321X
DOI:10.1016/S1004-9541(08)60093-2