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Title: Magnetic properties and adsorptive performance of manganese–zinc ferrites/activated carbon nanocomposites

Abstract

Owing to the unique microstructure and high specific surface area, activated carbon (AC) could act as an excellent adsorbent for wastewater treatment and good carrier for functional materials. In this paper, manganese–zinc ferrites (Mn{sub 0.5}Zn{sub 0.5}Fe{sub 2}O{sub 4}: MZF) were anchored into AC by hydrothermal method, resulting in the excellent magnetic response for AC nanocomposites in wastewater treatment. All results demonstrated the magnetic nanoparticles presented a spinel phase structure and existed in the pores of AC. The saturation magnetization (Ms) of MZF/AC nanocomposites increased with the ferrites content, while the pore volume and specific surface area declined. The Sample-5 possessed the specific surface area of 1129 m{sup 2} g{sup −1} (close to 1243 m{sup 2} g{sup −1} of AC) and Ms of 3.96 emu g{sup −1}. Furthermore, the adsorptive performance for organic dyes was studied and 99% methylene blue was adsorbed in 30 min. The magnetic AC nanocomposites could be separated easily from solution by magnetic separation technique. - Graphical abstract: The Sample-5 presented both good magnetic response and high BET surface area up to 1129 m{sup 2} g{sup −1} (close to AC of 1243 m{sup 2} g{sup −1}), which could be separated completely for about 60 s. MZF/AC nanocompositesmore » (Sample-3, 4, 5) in our work could be used as the magnetic absorbents, which could be separated easily by an outer magnet after the MB adsorption. - Highlights: • Mn{sub 0.5}Zn{sub 0.5}Fe{sub 2}O{sub 4} (MZF) as few as possible was implanted into activated carbon (AC) for the higher surface area. • Sample-5 possessed the high specific surface area (1129 m{sup 2} g{sup −1}) and the suitable Ms (3.96 emu g{sup −1}). • Methylene blue was adsorbed almost completely by MZF/AC nanocomposites in 30 min. • MZF/AC nanocomposites were separated easily from solution by magnetic separation technique.« less

Authors:
; ; ; ; ; ; ; ; ; ;  [1];  [1];  [2];  [1]
  1. College of Materials Science and Engineering, China Jiliang University, Hangzhou 310018 (China)
  2. (China)
Publication Date:
OSTI Identifier:
22443511
Resource Type:
Journal Article
Resource Relation:
Journal Name: Journal of Solid State Chemistry; Journal Volume: 221; Other Information: Copyright (c) 2014 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved.; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
37 INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY; ABSORBENTS; ACTIVATED CARBON; ADSORPTION; FERRITE; FERRITES; HYDROTHERMAL SYNTHESIS; MAGNETIC PROPERTIES; MAGNETIZATION; MAGNETS; MANGANESE; METHYLENE BLUE; MICROSTRUCTURE; NANOCOMPOSITES; NANOPARTICLES; SPECIFIC SURFACE AREA; SPINELS; SURFACE AREA; WASTE WATER; WATER TREATMENT; ZINC

Citation Formats

Zhang, B.B., Xu, J.C., Xin, P.H., Han, Y.B., Hong, B., Jin, H.X., Jin, D.F., Peng, X.L., Li, J., Gong, J., Ge, H.L., Zhu, Z.W., E-mail: zzw@cjlu.edu.cn, College of Mechanical and Electrical Engineering, China Jiliang University, Hangzhou 310018, and Wang, X.Q., E-mail: wxqnano@cjlu.edu.cn. Magnetic properties and adsorptive performance of manganese–zinc ferrites/activated carbon nanocomposites. United States: N. p., 2015. Web. doi:10.1016/J.JSSC.2014.10.020.
Zhang, B.B., Xu, J.C., Xin, P.H., Han, Y.B., Hong, B., Jin, H.X., Jin, D.F., Peng, X.L., Li, J., Gong, J., Ge, H.L., Zhu, Z.W., E-mail: zzw@cjlu.edu.cn, College of Mechanical and Electrical Engineering, China Jiliang University, Hangzhou 310018, & Wang, X.Q., E-mail: wxqnano@cjlu.edu.cn. Magnetic properties and adsorptive performance of manganese–zinc ferrites/activated carbon nanocomposites. United States. doi:10.1016/J.JSSC.2014.10.020.
Zhang, B.B., Xu, J.C., Xin, P.H., Han, Y.B., Hong, B., Jin, H.X., Jin, D.F., Peng, X.L., Li, J., Gong, J., Ge, H.L., Zhu, Z.W., E-mail: zzw@cjlu.edu.cn, College of Mechanical and Electrical Engineering, China Jiliang University, Hangzhou 310018, and Wang, X.Q., E-mail: wxqnano@cjlu.edu.cn. Thu . "Magnetic properties and adsorptive performance of manganese–zinc ferrites/activated carbon nanocomposites". United States. doi:10.1016/J.JSSC.2014.10.020.
@article{osti_22443511,
title = {Magnetic properties and adsorptive performance of manganese–zinc ferrites/activated carbon nanocomposites},
author = {Zhang, B.B. and Xu, J.C. and Xin, P.H. and Han, Y.B. and Hong, B. and Jin, H.X. and Jin, D.F. and Peng, X.L. and Li, J. and Gong, J. and Ge, H.L. and Zhu, Z.W., E-mail: zzw@cjlu.edu.cn and College of Mechanical and Electrical Engineering, China Jiliang University, Hangzhou 310018 and Wang, X.Q., E-mail: wxqnano@cjlu.edu.cn},
abstractNote = {Owing to the unique microstructure and high specific surface area, activated carbon (AC) could act as an excellent adsorbent for wastewater treatment and good carrier for functional materials. In this paper, manganese–zinc ferrites (Mn{sub 0.5}Zn{sub 0.5}Fe{sub 2}O{sub 4}: MZF) were anchored into AC by hydrothermal method, resulting in the excellent magnetic response for AC nanocomposites in wastewater treatment. All results demonstrated the magnetic nanoparticles presented a spinel phase structure and existed in the pores of AC. The saturation magnetization (Ms) of MZF/AC nanocomposites increased with the ferrites content, while the pore volume and specific surface area declined. The Sample-5 possessed the specific surface area of 1129 m{sup 2} g{sup −1} (close to 1243 m{sup 2} g{sup −1} of AC) and Ms of 3.96 emu g{sup −1}. Furthermore, the adsorptive performance for organic dyes was studied and 99% methylene blue was adsorbed in 30 min. The magnetic AC nanocomposites could be separated easily from solution by magnetic separation technique. - Graphical abstract: The Sample-5 presented both good magnetic response and high BET surface area up to 1129 m{sup 2} g{sup −1} (close to AC of 1243 m{sup 2} g{sup −1}), which could be separated completely for about 60 s. MZF/AC nanocomposites (Sample-3, 4, 5) in our work could be used as the magnetic absorbents, which could be separated easily by an outer magnet after the MB adsorption. - Highlights: • Mn{sub 0.5}Zn{sub 0.5}Fe{sub 2}O{sub 4} (MZF) as few as possible was implanted into activated carbon (AC) for the higher surface area. • Sample-5 possessed the high specific surface area (1129 m{sup 2} g{sup −1}) and the suitable Ms (3.96 emu g{sup −1}). • Methylene blue was adsorbed almost completely by MZF/AC nanocomposites in 30 min. • MZF/AC nanocomposites were separated easily from solution by magnetic separation technique.},
doi = {10.1016/J.JSSC.2014.10.020},
journal = {Journal of Solid State Chemistry},
number = ,
volume = 221,
place = {United States},
year = {Thu Jan 15 00:00:00 EST 2015},
month = {Thu Jan 15 00:00:00 EST 2015}
}