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

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成果类型：

期刊论文

作者：

Peng, Liang*;Qin, Pufeng;Lei, Ming;Zeng, Qingru;Song, Huijuan;...

通讯作者：

Peng, Liang

作者机构：

[Peng, Liang] Hunan Agr Univ, Coll Resource & Environm, Dept Environm Sci & Engn, Changsha 410128, Hunan, Peoples R China.

[Peng, Liang; Song, Huijuan] Cent S Univ, Sch Met Sci & Technol, Changsha 410083, Hunan, Peoples R China.

[Gu, Jidong] Univ Hong Kong, Lab Environm Toxicol, Sch Biol Sci, Hong Kong, Hong Kong, Peoples R China.

通讯机构：

[Peng, Liang] H

Hunan Agr Univ, Coll Resource & Environm, Dept Environm Sci & Engn, Changsha 410128, Hunan, Peoples R China.

语种：

英文

关键词：

Adsorption;Biological materials;Interfaces (materials);Magnetic separation;Magnetite;Nanoparticles;Nanostructures;Organic acids;Saturation magnetization;Separation;Suspensions (fluids);Adsorption capacities;Aqueous suspensions;Fe3O4 nanoparticles;Iron salts;Langmuir adsorption model;Low magnetic fields;Rhodamine B;TEM images;Iron oxides;humic acid;iron oxide;iron salt;rhodamine B;water;ferric ion;ferric oxide;metal nanoparticle;rhodamine;rhodamine B;adsorption;aqueous solution;dye;humic acid;interface;magnetic field;magnetization;numerical model;oxide;particulate matter;pollutant removal;saturation;wastewater;adsorption;article;magnetic field;magnetic separation;pH;transmission electron microscopy;chemistry;humic substance;isolation and purification;temperature;water pollutant;Ferric Compounds;Humic Substances;Hydrogen-Ion Concentration;Metal Nanoparticles;Microscopy, Electron, Transmission;Rhodamines;Temperature;Water Pollutants, Chemical

期刊：

Journal of Hazardous Materials

ISSN：

0304-3894

年：

2012

卷：

209-210

页码：

193-198

DOI：

10.1016/j.jhazmat.2012.01.011

基金类别：

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 ).

机构署名：

本校为第一且通讯机构

院系归属：

资源环境学院

摘要：

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 equili...

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

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