A Unique Transformation Route for Synthesis of Rodlike Hollow Mesoporous Silica Particles

doi:10.1021/jp110689k

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	A Unique Transformation Route for Synthesis of Rodlike Hollow Mesoporous Silica Particles
	Wu, Xue-Jun; Jiang, Yuanyuan; Xu, Dongsheng
刊名	JOURNAL OF PHYSICAL CHEMISTRY C
	2011-06-16
卷号	115 期号:23 页码:11342-11347
ISSN号	1932-7447
DOI	10.1021/jp110689k
英文摘要	Rodlike hollow mesoporous silica particles with ordered mesopores parallel to the axis were synthesized by using a surfactant mixture composed of zwitterionic and anionic surfactants as the templates with the assistance of a costructure-directing agent. The products were intact and dispersed hollow particles with a hexagonal cross section and an aspect ratio in the range 1.8-2.5. The mesostructure was stable even after calcination at 500 degrees C. Furthermore, the morphology and mesostructure of the products could be tuned through adjusting the surfactant molar ratio, which changed from rods to nearly spheres. After detailed detection of the morphology change of the products at different reaction times, it was found that the products were produced through a specific way that hollows out the chiral mesoporous silica solid nanrods and the addition of triethanolamine is the key step to produce hollow particles. Moreover, removal of surfactants by extraction led to a surface-functionalized sample with positive organic groups on the mesopore surface and with a high specific surface area up to 430 m(2) g(-1) which provided a good candidate for drug delivery and absorption matrix.
语种	英语
出版者	AMER CHEMICAL SOC
WOS记录号	WOS:000291339000003
内容类型	期刊论文
源URL	[http://ir.iccas.ac.cn/handle/121111/72903]
专题	中国科学院化学研究所
通讯作者	Xu, Dongsheng
作者单位	Peking Univ, Coll Chem & Mol Engn, State Key Lab Struct Chem Unstable & Stable Speci, Beijing Natl Lab Mol Sci, Beijing 100871, Peoples R China
推荐引用方式 GB/T 7714	Wu, Xue-Jun,Jiang, Yuanyuan,Xu, Dongsheng. A Unique Transformation Route for Synthesis of Rodlike Hollow Mesoporous Silica Particles[J]. JOURNAL OF PHYSICAL CHEMISTRY C,2011,115(23):11342-11347.
APA	Wu, Xue-Jun,Jiang, Yuanyuan,&Xu, Dongsheng.(2011).A Unique Transformation Route for Synthesis of Rodlike Hollow Mesoporous Silica Particles.JOURNAL OF PHYSICAL CHEMISTRY C,115(23),11342-11347.
MLA	Wu, Xue-Jun,et al."A Unique Transformation Route for Synthesis of Rodlike Hollow Mesoporous Silica Particles".JOURNAL OF PHYSICAL CHEMISTRY C 115.23(2011):11342-11347.