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Home / Journal of Nanoscience and Nanotechnology, Volume 16, Number 5

The Influence of Chelating Agent on the Structural and Magnetic Properties of CoFe2O4 Nanoparticles

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We have studied the influence of chelating agents (glycerin and sucrose) on the structural and magnetic properties of cobalt ferrite (CoFe2O4) nanoparticles synthesized via co-precipitation method. The Rietveld refinements from X-ray diffraction patterns confirm that all samples are single phase identified in a cubic crystalline system belonging to the space group Fd-3m. Besides, we have verified that the addition of chelating agents produces a decreasing in the particles average size from 14(2) to 5(1) nm. Magnetization measurements as a function of temperature show a decrease in the blocking temperature (T B) to sample obtained with addition of sucrose. A superparamagnetic behavior at room temperature was observed by magnetic measurements as function of field in the sample with 0.020 mol/L of sucrose. The results show that character chelating of sucrose reduces the coalescence effect and magnetic interaction in the CoFe2O4 nanoparticles. These results suggest that sucrose could be an alternative to control the structural and magnetic properties of other oxides nanoparticles.

Keywords: Co-Precipitation Synthesis; CoFe2O4; Glycerin; Sucrose; Superparamagnetic

Document Type: Research Article

Affiliations: 1: Universidade Federal de Sergipe, Campus Prof. José Aluísio Campos, Departamento de Física, 49100-000 São Cristóvão, SE, Brazil 2: Universidade Federal de Campina Grande, Centro de Ciências e Tecnologia, Unidade Acadêmica de Física, 58429-900, Campina Grande, PB, Brazil 3: Universidade Federal do Maranhão, Campus do Bacanga, Departamento de Física, 65080-805, São Luis, MA, Brazil 4: Instituto de Física Gleb Wataghin, UNICAMP, 13083-970 Campinas, SP, Brazil 5: Universidade Federal de Sergipe, Campus Prof. Alberto Carvalho, Departamento de Física, 49500-000 Itabaiana, SE, Brazil

Publication date: 01 May 2016

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  • Journal for Nanoscience and Nanotechnology (JNN) is an international and multidisciplinary peer-reviewed journal with a wide-ranging coverage, consolidating research activities in all areas of nanoscience and nanotechnology into a single and unique reference source. JNN is the first cross-disciplinary journal to publish original full research articles, rapid communications of important new scientific and technological findings, timely state-of-the-art reviews with author's photo and short biography, and current research news encompassing the fundamental and applied research in all disciplines of science, engineering and medicine.
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