A facile and general fabrication method for organic silica hollow spheres and their excellent adsorption properties for heavy metal ions

被引：73

作者：

Hu, Jing ^{[1
,2
,3
]}

Wang, Xuge ^{[1
]}

Liu, Liqin ^{[1
]}

Wu, Limin ^{[2
,3
]}

机构：

[1] Shanghai Inst Technol, Sch Perfume & Aroma Technol, Shanghai 201418, Peoples R China

[2] Fudan Univ, Dept Mat Sci, Shanghai 200433, Peoples R China

[3] Fudan Univ, State Key Lab Mol Engn Polymers, Shanghai 200433, Peoples R China

来源：

JOURNAL OF MATERIALS CHEMISTRY A | 2014年 / 2卷 / 46期

基金：

中国博士后科学基金; 中国国家自然科学基金;

关键词：

PERIODIC MESOPOROUS ORGANOSILICA; RECHARGEABLE BATTERIES; TEMPLATING SYNTHESIS; AQUEOUS-SOLUTION; MICROSPHERES; NANOSPHERES; SHELL; REMOVAL; PARTICLES; THICKNESS;

D O I：

10.1039/c4ta03856h

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

This paper presents a facile and general method for fabrication of organic silica hollow spheres by co-hydrolysis and condensation reactions of TEOS and other silane coupling agents under the catalysis of ammonia. Silane coupling agents were first pre-hydrolyzed to form micelles. When TEOS was added, a sol-gel reaction takes place between TEOS and the Si-OH and methoxy groups, at the surfaces of the micelles to form porous silica shells, producing organic silica hollow spheres. Taking vinyl silica hollow spheres as an example, the as-obtained hollow spheres exhibited considerably high adsorption properties for Pb2+ and other heavy metal ions.

引用

页码：19771 / 19777

页数：7

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