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

Authors

Weichang Hao, University Of Wollongong,Beihang University
Yang Xi, Beihang University
Jingwei Hu, Beihang University
Tianmin Wang, Beihang University
Yi Du, University of WollongongFollow
X L. Wang, University of Wollongong

RIS ID

59134

Publication Details

Hao, W., Xi, Y., Hu, J., Wang, T., Du, Y. & Wang, X. L. (2012). Magnetic properties and microstructures of iron oxide@mesoporous silica core-shell composite for applications in magnetic dye separation. Journal of Applied Physics, 111 (7), 07B301-1-07B301-2.

Abstract

"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]"