Comparable Studies of Adsorption and Magnetic Properties of Ferrite MnFe2O4 Nanoparticles, Porous Bulks and Nanowires

高等学校化学研究 ›› 2011, Vol. 27 ›› Issue (4): 543-546.

Comparable Studies of Adsorption and Magnetic Properties of Ferrite MnFe₂O₄ Nanoparticles, Porous Bulks and Nanowires

HOU Xiang-yu^1,2, FENG Jing^1*, LIU Xiao-han¹ and ZHANG Mi-lin¹

1. Key Laboratory of Superlight Materials & Surface Technology, Ministry of Education, Harbin Engineering University, Harbin 150001, P. R. China;
2. Institute of Seawater Desalination and Multipurpose Utilization, Tianjin 300192, P. R. China

收稿日期:2010-09-25 修回日期:2011-03-17 出版日期:2011-07-25 发布日期:2011-06-29
通讯作者: FENG Jing E-mail:fengjing@hrbeu.edu.cn
基金资助:
Supported by the Fundamental Research Funds for the Central Universities of China(No.HEUCF101015) and the Open Research Fund Program of State Key Laboratory of Rare Earth Resuorce Utilization, China(No.RERU2011004).

Comparable Studies of Adsorption and Magnetic Properties of Ferrite MnFe₂O₄ Nanoparticles, Porous Bulks and Nanowires

HOU Xiang-yu^1,2, FENG Jing^1*, LIU Xiao-han¹ and ZHANG Mi-lin¹

1. Key Laboratory of Superlight Materials & Surface Technology, Ministry of Education, Harbin Engineering University, Harbin 150001, P. R. China;
2. Institute of Seawater Desalination and Multipurpose Utilization, Tianjin 300192, P. R. China

Received:2010-09-25 Revised:2011-03-17 Online:2011-07-25 Published:2011-06-29
Contact: FENG Jing E-mail:fengjing@hrbeu.edu.cn
Supported by:
Supported by the Fundamental Research Funds for the Central Universities of China(No.HEUCF101015) and the Open Research Fund Program of State Key Laboratory of Rare Earth Resuorce Utilization, China(No.RERU2011004).

摘要/Abstract

摘要： The spinel ferrites MnFe2O4 nanowires were synthesized by hydrothermal route, porous MnFe2O4 and nanoparticles morphologies were synthesized by sol-gel method with egg white. The structures, morphologies, magnetic properties and adsorption properties of these obtained ferrites with different morphologies were studied contrastively. Results show that the obtained samples exhibit ferromagnetic properties. This realizes convenient magnetic separation from solution when they are used in the treatment of organic dyes wastewater. However, the contrastive studies show that the saturation magnetizations(Ms) of MnFe2O4 with different morphologies are different and the Ms follows the order: Ms(porous)<Ms(nanoparticles)<Ms(nanowires). In addition, the adsorptions of methylene blue(MB) onto these ferrites depend on ferrites’ morphologies seriously. The adsorption rate of MB on the porous MnFe2O4 is much higher than those onto the other two samples because the porous structure can provide high efficient mass transport through the pores.

关键词: MnFe2O4, Ferromangetism, Adsorption property, Nanowire, Nanoparticle, Porous ferrite

Abstract: The spinel ferrites MnFe2O4 nanowires were synthesized by hydrothermal route, porous MnFe2O4 and nanoparticles morphologies were synthesized by sol-gel method with egg white. The structures, morphologies, magnetic properties and adsorption properties of these obtained ferrites with different morphologies were studied contrastively. Results show that the obtained samples exhibit ferromagnetic properties. This realizes convenient magnetic separation from solution when they are used in the treatment of organic dyes wastewater. However, the contrastive studies show that the saturation magnetizations(Ms) of MnFe2O4 with different morphologies are different and the Ms follows the order: Ms(porous)<Ms(nanoparticles)<Ms(nanowires). In addition, the adsorptions of methylene blue(MB) onto these ferrites depend on ferrites’ morphologies seriously. The adsorption rate of MB on the porous MnFe2O4 is much higher than those onto the other two samples because the porous structure can provide high efficient mass transport through the pores.

Key words: MnFe2O4, Ferromangetism, Adsorption property, Nanowire, Nanoparticle, Porous ferrite

HOU Xiang-yu, FENG Jing*, LIU Xiao-han and ZHANG Mi-lin. Comparable Studies of Adsorption and Magnetic Properties of Ferrite MnFe₂O₄ Nanoparticles, Porous Bulks and Nanowires[J]. 高等学校化学研究, 2011, 27(4): 543-546.

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Comparable Studies of Adsorption and Magnetic Properties of Ferrite MnFe₂O₄ Nanoparticles, Porous Bulks and Nanowires

Comparable Studies of Adsorption and Magnetic Properties of Ferrite MnFe₂O₄ Nanoparticles, Porous Bulks and Nanowires

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