Synthesis and Characterization of Magnetic Mesoporous Ɣ-FE₂O₃/SIO₂

Abstract:

Magneticmesoporousɣ-Fe2O3/SiO2 synthesized using an evaporation-induced self-assembly (EISA) approach. The non-ionictriblock copolymer P123 was used as surfactant template with various amounts of iron oxide (1.8g-2.4g) and varied during the synthesis. Characterizations of the surface area and magnetic properties for prepared materials were done using N₂-sorption analyses, and a superconducting quantum interference device interfaced with a vibrating sample magnetometer (SQUID-VSM) respectively. From this study, N₂-sorption analysis indicated that most of the ɣ-Fe₂O₃ domains of several nanometres were embedded in the silica matrix. In addition, the obtained magneticmesoporouscomposite which contains 2.3g amount ofiron oxide has revealedhigher magnetism saturation value of (4.564 emu/g) compared to other prepared samples which been evaluated by VSM analysis.

• Periodical: Advanced Materials Research (Volume 879)
• Pages: 128-133
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.879.128
• Online since: January 2014
• Authors: Nur Shuhada Shaari, Suhaina Mohd Ibrahim, Farinaa Md Jamil, Zuhana Ahmad Zubir, A.M. Abdullah, Nor Adhila Muhammad, Wan Mohammed Nazrul Wan Jaafar, M.Z.A. Malik
• Keywords: EISA, Magnetic Mesoporous ɣ-Fe₂O₃/SiO₂, N2-Sorption, VSM

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