Superparamagnetic high-magnetization microspheres with an Fe3O4@SiO2 core and perpendicularly aligned mesoporous SiO2 shell for removal of microcystins

被引：1596

作者：

Deng, Yonghui ^{[1
,2
]}

Qi, Dawei ^{[1
,2
]}

Deng, Chunhui ^{[1
,2
]}

Zhang, Xiangmin ^{[1
,2
]}

Zhao, Dongyuan ^{[1
,2
]}

机构：

[1] Fudan Univ, Shanghai Key Lab Mol Catalysis, Dept Chem, Shanghai 200433, Peoples R China

[2] Fudan Univ, Adv Mat Lab, Shanghai 200433, Peoples R China

来源：

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY | 2008年 / 130卷 / 01期

关键词：

D O I：

10.1021/ja0777584

中图分类号：

O6 [化学];

学科分类号：

0703 [化学];

摘要：

Superparamagnetic microspheres with an Fe3O4@SiO2 core and a perpendiculary aligned mesoporous SiO2 shell were synthesized through a surfactant-templating solgel approach. The microspheres possess high magnetization (53.3 emu/g), high surface area (365 m(2)/g), large pore volume (0.29 cm(3)/g), and uniform mesopore (2.3 nm). By using the unique core-shell microspheres with accessible large pores and excellent magnetic property, a fast removal of microcystins with high efficiency (> 95%) can be achieved.

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页码：28 / +

页数：3

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