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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Tác giả chính: Nguyen, Van Quang, Pham, Thi Lan Huong, Nguyen, Tu, Nguyen, Thi Huyen, Nguyen, Tri Tuan, Manh, Trung Tran, Anh-Tuan Le
Định dạng: Bài Báo
Ngôn ngữ:Vietnamese
Nhà xuất bản: ICE Publishing 2020
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Truy cập trực tuyến: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
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