Facile One-Pot Fabrication of Hollow Porous Silica Nanoparticles

被引：18
|
作者：
Abdelaal, Haitham Mohammad [1 ,2 ,3 ]
Zawrah, Mahmoud Farag [1 ]
Harbrecht, Bernd [2 ,3 ]
机构：
[1] Natl Res Ctr, Dept Ceram, Cairo, Egypt
[2] Univ Marburg, Fachbereich Chem, D-35032 Marburg, Germany
[3] Univ Marburg, Wissensch Zentrum Mat Wissensch, D-35032 Marburg, Germany
来源：
CHEMISTRY-A EUROPEAN JOURNAL | 2014年 / 20卷 / 03期
关键词：
glucose; hydrothermal synthesis; nanoparticles; silica; transmission electron microscopy; MESOPOROUS SILICA; CARBON SPHERES; CORE-SHELL; MICROCAPSULES; MICROSPHERES; NANOSPHERES; PARTICLES;
D O I：
10.1002/chem.201303656
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
A method for the fabrication of hollow silica nanospheres, a facile one-pot hydrothermal route, is described. Heating of an aqueous solution of water glass and D-glucose to 180 degrees C for 24h affordsas indicated by transmission electron microscopya nanospherical composite consisting of a silica shell sheathing a carbonaceous core. Subsequent removal of the carbonaceous interior through oxidation in air produces hollow silica structures. Variation of the concentration of the two jointly dissolved chemicals enables a variation of the thickness of the silica shell. The hollow silica particles were characterized by means of SEM, TEM, XRD, IR spectroscopy, thermogravimetrical analysis (TGA), and sorption measurements.
引用
收藏
页码：673 / 677
页数：5
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