Magnetic mesoporous iron oxide/silica composite aerogels with high adsorption ability for organic pollutant removal

被引：15
|
作者：
Hu, Shi-Cheng [1 ]
Shi, Fei [1 ]
Liu, Jing-Xiao [1 ]
Yu, Ling [1 ]
Liu, Su-Hua [1 ]
机构：
[1] Dalian Polytech Univ, Sch Text & Mat Engn, Dalian 116034, Peoples R China
来源：
JOURNAL OF POROUS MATERIALS | 2016年 / 23卷 / 03期
基金：
中国国家自然科学基金;
关键词：
Magnetic aerogels; Fe3O4; SiO2; Surface modification; Ambient pressure drying; CARBON AEROGEL; SILICA; CELLULOSE; MICROSTRUCTURE; FABRICATION; FILMS;
D O I：
10.1007/s10934-015-0120-9
中图分类号：
O69 [应用化学];
学科分类号：
081704 ;
摘要：
In this paper, a kind of magnetic mesoporous iron oxide/silica composite aerogels with high adsorption ability is prepared by ambient pressure drying method. The results indicate that the obtained magnetic aerogels with Fe/Si (molar ratio) > 0.91 % have higher specific surface area with 310.8-411.0 m(2) g(-1) and pore volume with 0.85-1.12 cm(3) g(-1). The adsorption test indicates that the obtained magnetic aerogels showed prominent adsorption capability with the adsorption rate for Rhodamine B in aqueous solution could attain to 95.8 % within 80 min. Moreover, all the composite aerogels exhibited good magnetic properties and could be easily separated from the water after adsorption.
引用
收藏
页码：655 / 661
页数：7
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