Modifying Fe3O4 nanoparticles with humic acid for removal of Rhodamine B in water

Liang Peng; Pufeng Qin; Ming Lei; Qingru Zeng; Huijuan Song; Jiao Yang; Jihai Shao; Bohan Liao; Jidong Gu

doi:10.1016/j.jhazmat.2012.01.011

Modifying Fe₃O₄ nanoparticles with humic acid for removal of Rhodamine B in water

Liang Peng^*, Pufeng Qin, Ming Lei, Qingru Zeng, Huijuan Song, Jiao Yang, Jihai Shao, Bohan Liao, Jidong Gu

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

227 Scopus citations

Abstract

Humic acid (HA) modifying Fe₃O₄ nanoparticles (Fe₃O₄/HA) was developed for removal of Rhodamine B from water. Fe₃O₄/HA was prepared by a coprecipitation procedure with cheap and environmentally friendly iron salts and HA. TEM images revealed the Fe₃O₄/HA (with ~10nm Fe₃O₄ cores) were aggregated as aqueous suspensions. With a saturation magnetization of 61.2emu/g, the Fe₃O₄/HA could be simply recovered from water with magnetic separations at low magnetic field gradients within a few minutes. Sorption of the Rhodamine B to Fe₃O₄/HA reached equilibrium in less than 15min, and agreed well to the Langmuir adsorption model with maximum adsorption capacities of 161.8mg/g. The Fe₃O₄/HA was able to remove over 98.5% of Rhodamin B in water at optimized pH.

Original language	English
Pages (from-to)	193-198
Number of pages	6
Journal	Journal of Hazardous Materials
Volume	209-210
DOIs	https://doi.org/10.1016/j.jhazmat.2012.01.011
State	Published - 30 Mar 2012
Externally published	Yes

Keywords

Adsorption
Interface
Nanostructure
Rhodamine B
Separations

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10.1016/j.jhazmat.2012.01.011

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title = "Modifying Fe3O4 nanoparticles with humic acid for removal of Rhodamine B in water",

abstract = "Humic acid (HA) modifying Fe3O4 nanoparticles (Fe3O4/HA) was developed for removal of Rhodamine B from water. Fe3O4/HA was prepared by a coprecipitation procedure with cheap and environmentally friendly iron salts and HA. TEM images revealed the Fe3O4/HA (with ~10nm Fe3O4 cores) were aggregated as aqueous suspensions. With a saturation magnetization of 61.2emu/g, the Fe3O4/HA could be simply recovered from water with magnetic separations at low magnetic field gradients within a few minutes. Sorption of the Rhodamine B to Fe3O4/HA reached equilibrium in less than 15min, and agreed well to the Langmuir adsorption model with maximum adsorption capacities of 161.8mg/g. The Fe3O4/HA was able to remove over 98.5% of Rhodamin B in water at optimized pH.",

keywords = "Adsorption, Interface, Nanostructure, Rhodamine B, Separations",

author = "Liang Peng and Pufeng Qin and Ming Lei and Qingru Zeng and Huijuan Song and Jiao Yang and Jihai Shao and Bohan Liao and Jidong Gu",

note = "Funding Information: For the financial support we are grateful to the National Natural Science Foundation of China (No. 21007014, 21107024 ), the Start Foundation of Hunan Agricultural University (No. 10YJ01 ), the National Science and Technology Major Projects ( 2009ZX07212-001-05 ), the National Environmental Protection Public Welfare Program (No. 201009047 ) and Key Laboratory of Production Environment and Agro-product Safety of Ministry of Agriculture, Tianjin Key Laboratory of Agro-environment and Food Safety ( 2010-KJ-KF-03 ) and Scientific Research Fund of Hunan Provincial Education Department ( 11C0650 ).",

year = "2012",

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doi = "10.1016/j.jhazmat.2012.01.011",

language = "英语",

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pages = "193--198",

journal = "Journal of Hazardous Materials",

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T1 - Modifying Fe3O4 nanoparticles with humic acid for removal of Rhodamine B in water

AU - Peng, Liang

AU - Qin, Pufeng

AU - Lei, Ming

AU - Zeng, Qingru

AU - Song, Huijuan

AU - Yang, Jiao

AU - Shao, Jihai

AU - Liao, Bohan

AU - Gu, Jidong

N1 - Funding Information: For the financial support we are grateful to the National Natural Science Foundation of China (No. 21007014, 21107024 ), the Start Foundation of Hunan Agricultural University (No. 10YJ01 ), the National Science and Technology Major Projects ( 2009ZX07212-001-05 ), the National Environmental Protection Public Welfare Program (No. 201009047 ) and Key Laboratory of Production Environment and Agro-product Safety of Ministry of Agriculture, Tianjin Key Laboratory of Agro-environment and Food Safety ( 2010-KJ-KF-03 ) and Scientific Research Fund of Hunan Provincial Education Department ( 11C0650 ).

PY - 2012/3/30

Y1 - 2012/3/30

N2 - Humic acid (HA) modifying Fe3O4 nanoparticles (Fe3O4/HA) was developed for removal of Rhodamine B from water. Fe3O4/HA was prepared by a coprecipitation procedure with cheap and environmentally friendly iron salts and HA. TEM images revealed the Fe3O4/HA (with ~10nm Fe3O4 cores) were aggregated as aqueous suspensions. With a saturation magnetization of 61.2emu/g, the Fe3O4/HA could be simply recovered from water with magnetic separations at low magnetic field gradients within a few minutes. Sorption of the Rhodamine B to Fe3O4/HA reached equilibrium in less than 15min, and agreed well to the Langmuir adsorption model with maximum adsorption capacities of 161.8mg/g. The Fe3O4/HA was able to remove over 98.5% of Rhodamin B in water at optimized pH.

AB - Humic acid (HA) modifying Fe3O4 nanoparticles (Fe3O4/HA) was developed for removal of Rhodamine B from water. Fe3O4/HA was prepared by a coprecipitation procedure with cheap and environmentally friendly iron salts and HA. TEM images revealed the Fe3O4/HA (with ~10nm Fe3O4 cores) were aggregated as aqueous suspensions. With a saturation magnetization of 61.2emu/g, the Fe3O4/HA could be simply recovered from water with magnetic separations at low magnetic field gradients within a few minutes. Sorption of the Rhodamine B to Fe3O4/HA reached equilibrium in less than 15min, and agreed well to the Langmuir adsorption model with maximum adsorption capacities of 161.8mg/g. The Fe3O4/HA was able to remove over 98.5% of Rhodamin B in water at optimized pH.

KW - Adsorption

KW - Interface

KW - Nanostructure

KW - Rhodamine B

KW - Separations

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U2 - 10.1016/j.jhazmat.2012.01.011

DO - 10.1016/j.jhazmat.2012.01.011

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C2 - 22321856

AN - SCOPUS:84857365911

SN - 0304-3894

VL - 209-210

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JO - Journal of Hazardous Materials

JF - Journal of Hazardous Materials

ER -

Modifying Fe₃O₄ nanoparticles with humic acid for removal of Rhodamine B in water

Abstract

Keywords

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