Preparation of Magnetic Nanoparticles from Byproduct of Titanium Dioxide-Copperas

Abstract:

A new method for the preparation of Fe₃O₄ NPs from byproduct of titanium dioxide-copperas was studied in this study. Core-shell structures and chemical composition of the nanoparticles have been investigated by TEM, XRD and FTIR techniques. The results indicated that the Fe₃O₄ NPs can be synthesized and obtained from copperas by chemical co-precipitation method and have a uniform spherical morphology with an average diameter of about 10 nm. The mole ratio of Fe²⁺ to Fe³⁺was one of the most important factors during the chemical co-precipitation processing, which has a great effect on the yield and size distribution of precipitations. The recommended mole ratio f Fe²⁺ to Fe³⁺ was 1.75:1. The saturated magnetization of Fe₃O₄ NPs was 52.8emug^-1 at 25°C and this material exhibited excellent magnetic properties. A new way was therefore provided for the comprehensive utilization of the unmarketable copperas. Moreover, the Fe₃O₄ NPs obtained from the copperas have a big potential in environmental decontamination, medical technology and biological science.

• Periodical: Applied Mechanics and Materials (Volume 483)
• Pages: 100-104
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.483.100
• Online since: December 2013
• Authors: Shao Jun Bai, Shu Ming Wen*, Chao Lv
• Keywords: Comprehensive Utilization, Copperas, Co-Precipitation, Magnetic Nanoparticles

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