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Influences of calcination temperature on structural properties of MnFe2O4 nanopowders synthesized by co-precipitation method for reusable absorbent materials
Author(s)
Junlabhut, P.
Nuthongkum, P.
Pechrapa, W.
Date Issued
January 1, 2018
Type
Conference Paper
Abstract
Manganese Ferrite (MnFe2O4) nanopowders have been synthesized via chemical co-precipitation method using metallic chlorides of manganese and iron as starting materials and sodium hydroxide (NaOH) was used as a precipitating agent. The obtained products were calcined at various temperatures of 400, 600, 800 and 1000°C. The structural properties and average crystallite size of after-calcined powders were investigated by X-ray diffraction (XRD) while morphologies of nanopowders were monitored by scanning electron microscope (SEM). The comparative study on chemical bonding of before-calcined and after-calcined powders have been carried out by Fourier transform infrared spectroscopy (FTIR). The co-precipitated MnFe2O4 powders show good absorption of Methylene blue (MB) from aqueous solution and could be separated under a magnetic field. These results suggest that the co-precipitated MnFe2O4 could be proposed as a reusable absorbent for removing MB with several cycles.
Citation
Materials Today Proceedings, 5(6), 13857-13864, 2018