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Effects of synthesis conditions on structure and magnetic properties of MnFe2O4 particles

Manganese ferrite (MnFe2O4) nanoparticles were synthesized through a coprecipitation method using manganese (II) chloride tetrahydrate (MnCl2·4H2O) and ferric chloride hexahydrate (FeCl3·6H2O) as precursors. The scanning electron microscopy images showed that the as-synthesized particles were granul...

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Main Authors:	Nguyen, Van Quang, Pham, Thi Lan Huong, Nguyen, Tu, Nguyen, Thi Huyen, Nguyen, Tri Tuan, Manh, Trung Tran, Anh-Tuan Le
Format:	Article
Language:	Vietnamese
Published:	ICE Publishing 2020
Subjects:	degradation magnetic materials magnetic properties
Online Access:	https://www.icevirtuallibrary.com/doi/abs/10.1680/jgrma.20.00010 https://dlib.phenikaa-uni.edu.vn/handle/PNK/580
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spelling	oai:localhost:PNK-5802022-08-17T05:54:52Z Effects of synthesis conditions on structure and magnetic properties of MnFe2O4 particles Nguyen, Van Quang Pham, Thi Lan Huong Nguyen, Tu Nguyen, Thi Huyen Nguyen, Tri Tuan Manh, Trung Tran Anh-Tuan Le degradation magnetic materials magnetic properties Manganese ferrite (MnFe2O4) nanoparticles were synthesized through a coprecipitation method using manganese (II) chloride tetrahydrate (MnCl2·4H2O) and ferric chloride hexahydrate (FeCl3·6H2O) as precursors. The scanning electron microscopy images showed that the as-synthesized particles were granular and about 20 nm. The X-ray diffraction patterns revealed that the manganese ferrite phase was completely decomposed into ferric oxide (Fe2O3) and manganese (III) oxide (Mn2O3) after annealing above 800°C in air. In contrast, its crystalline quality significantly improved when it was annealed in argon. By using the vibrating-sample magnetometry technique, it was demonstrated that the saturation magnetization (M s) of the as-prepared sample (∼36.6 emu/g) decreased sharply up to ∼5 emu/g after annealing at 1000°C in air and significantly increased to ∼77.6 emu/g when it was annealed at 1000°C in argon. Under sunlight radiation, a higher efficiency was observed for manganese ferrite particles annealed in argon in the presence of hydrogen peroxide (H2O2), mainly due to the Fenton reaction between manganese ferrite and hydrogen peroxide. The authors suggest that the presence of hydrogen peroxide and the enhancement of the crystalline quality of the manganese ferrite phase are the two leading factors in improving methylene blue degradation efficiency. 2020-10-13T03:51:48Z 2020-10-13T03:51:48Z 2020 Article https://www.icevirtuallibrary.com/doi/abs/10.1680/jgrma.20.00010 https://dlib.phenikaa-uni.edu.vn/handle/PNK/580 vi application/pdf ICE Publishing
institution	Digital Phenikaa
collection	Digital Phenikaa
language	Vietnamese
topic	degradation magnetic materials magnetic properties
spellingShingle	degradation magnetic materials magnetic properties Nguyen, Van Quang Pham, Thi Lan Huong Nguyen, Tu Nguyen, Thi Huyen Nguyen, Tri Tuan Manh, Trung Tran Anh-Tuan Le Effects of synthesis conditions on structure and magnetic properties of MnFe2O4 particles
description	Manganese ferrite (MnFe2O4) nanoparticles were synthesized through a coprecipitation method using manganese (II) chloride tetrahydrate (MnCl2·4H2O) and ferric chloride hexahydrate (FeCl3·6H2O) as precursors. The scanning electron microscopy images showed that the as-synthesized particles were granular and about 20 nm. The X-ray diffraction patterns revealed that the manganese ferrite phase was completely decomposed into ferric oxide (Fe2O3) and manganese (III) oxide (Mn2O3) after annealing above 800°C in air. In contrast, its crystalline quality significantly improved when it was annealed in argon. By using the vibrating-sample magnetometry technique, it was demonstrated that the saturation magnetization (M s) of the as-prepared sample (∼36.6 emu/g) decreased sharply up to ∼5 emu/g after annealing at 1000°C in air and significantly increased to ∼77.6 emu/g when it was annealed at 1000°C in argon. Under sunlight radiation, a higher efficiency was observed for manganese ferrite particles annealed in argon in the presence of hydrogen peroxide (H2O2), mainly due to the Fenton reaction between manganese ferrite and hydrogen peroxide. The authors suggest that the presence of hydrogen peroxide and the enhancement of the crystalline quality of the manganese ferrite phase are the two leading factors in improving methylene blue degradation efficiency.
format	Article
author	Nguyen, Van Quang Pham, Thi Lan Huong Nguyen, Tu Nguyen, Thi Huyen Nguyen, Tri Tuan Manh, Trung Tran Anh-Tuan Le
author_facet	Nguyen, Van Quang Pham, Thi Lan Huong Nguyen, Tu Nguyen, Thi Huyen Nguyen, Tri Tuan Manh, Trung Tran Anh-Tuan Le
author_sort	Nguyen, Van Quang
title	Effects of synthesis conditions on structure and magnetic properties of MnFe2O4 particles
title_short	Effects of synthesis conditions on structure and magnetic properties of MnFe2O4 particles
title_full	Effects of synthesis conditions on structure and magnetic properties of MnFe2O4 particles
title_fullStr	Effects of synthesis conditions on structure and magnetic properties of MnFe2O4 particles
title_full_unstemmed	Effects of synthesis conditions on structure and magnetic properties of MnFe2O4 particles
title_sort	effects of synthesis conditions on structure and magnetic properties of mnfe2o4 particles
publisher	ICE Publishing
publishDate	2020
url	https://www.icevirtuallibrary.com/doi/abs/10.1680/jgrma.20.00010 https://dlib.phenikaa-uni.edu.vn/handle/PNK/580
_version_	1751856283170897920
score	8.887836

Effects of synthesis conditions on structure and magnetic properties of MnFe2O4 particles

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