Preparation of rattle-type magnetic mesoporous carbon spheres and their highly efficient adsorption and separation

被引：40
作者：
Yin, Yuyong [1 ]
Zhou, Shuxue [1 ]
Min, Chen [1 ]
Wu, Limin [1 ]
机构：
[1] Fudan Univ, Dept Mat Sci, Adv Mat Lab, Shanghai 200433, Peoples R China
来源：
JOURNAL OF COLLOID AND INTERFACE SCIENCE | 2011年 / 361卷 / 02期
基金：
中国国家自然科学基金;
关键词：
Rattle-type structure; Mesoporous carbon materials; Magnetic properties; Template synthesis; Adsorbent; DRUG-DELIVERY; POROUS CARBON; HYDROGENATION CATALYST; SILICA SHELL; NANOPARTICLES; MICROSPHERES; PARTICLES; TEMPLATE; ROUTE; CORE;
D O I：
10.1016/j.jcis.2011.05.014
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：
Novel rattle-type magnetic mesoporous carbon spheres are successfully prepared using composite spheres with Fe(3)O(4) as core and mesoporous SiO(2) as shell plus solid SiO(2) as a middle layer as templates. These rattle-type spheres possess the magnetization strength of as high as 37.5 emu/g, high and tunable specific surface areas (382-512.6 m(2)/g) due to mesoporous carbon shells. This magnetic rattle-type structure and the readily accessible mesoporous shell are very favoring for the fast adsorption and release of guest objects triggered by external stimulus, for example, the spheres showed very good adsorptive property to dye. (C) 2011 Elsevier Inc. All rights reserved.
引用
收藏
页码：527 / 533
页数：7
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