Magnetic properties and microstructures of iron oxide@mesoporous silica core-shell composite for applications in magnetic dye separation

被引：11

作者：

Hao, Weichang ^{[1
,2
]}

Xi, Yang ^{[1
]}

Hu, Jingwei ^{[1
]}

Wang, Tianmin ^{[1
]}

Du, Y. ^{[2
]}

Wang, X. L. ^{[2
]}

机构：

[1] Beihang Univ, Ctr Mat Phys & Chem, Beijing 100191, Peoples R China

[2] Univ Wollongong, ISEM, Wollongong, NSW 2522, Australia

来源：

JOURNAL OF APPLIED PHYSICS | 2012年 / 111卷 / 07期

基金：

中国国家自然科学基金; 澳大利亚研究理事会;

关键词：

SPHERES; FABRICATION; ADSORPTION; CARBON; PERFORMANCE; ADSORBENTS; SYNTHESIZE; WATER;

D O I：

10.1063/1.3670049

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

In this report, hollow mesoporous silica (HMS) and iron oxide-hollow mesoporous silica (FexOy@HMS) core-shell composite were prepared by a one-step facile fabrication method. Transmission electron microscopy, X-ray diffraction, N-2 adsorption-desorption isotherms, and vibrating sample magnetometer were used to characterize the morphology, microstructure, and magnetic properties of the HMS and core-shell composite. The magnetic separability of FexOy@HMS core-shell composite was tested in Rhodamine B (Rh. B) dye solution. The results indicate that the core-shell composite can absorb Rh. B dyes molecules effectively up to 90.1%. (C) 2012 American Institute of Physics. [doi:10.1063/1.3670049]

引用

页数：3

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