制备负载无机纳米颗粒的形状规整的微囊(英文)

被引：1

作者：

刘正平 ^{[1
]}

裴丽霞 ^{[1
]}

纪红兵 ^{[1
]}

姚兴东 ^{[2
]}

机构：

[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

[2] College of Chemistry&Ecological Engineering,Guangxi University for Nationalities

来源：

ChineseJournalofChemicalEngineering | 2008年 / 03期

关键词：

encapsulation; titanium dioxide; microcapsule; interfacial polymerization;

D O I：

暂无

中图分类号：

TB383.1 [];

学科分类号：

070205 ; 080501 ; 1406 ;

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 emulsifica-tion 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.

引用

页码：384 / 388

页数：5

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