Magnetite modified with amine polymer to adsorb indium ions

被引：11

作者：

Chiou, Chyow-San ^{[1
]}

Chuang, Kai-Jen ^{[2
,3
]}

Chen, Hua-Wei ^{[4
]}

Chen, Yi-Chen ^{[1
]}

机构：

[1] Natl Lan Univ, Dept Environm Engn, Ilan, Taiwan

[2] Taipei Med Univ, Coll Med, Sch Med, Dept Publ Hlth, Taipei, Taiwan

[3] Taipei Med Univ, Coll Publ Hlth & Nutr, Sch Publ Hlth, Taipei, Taiwan

[4] St Marys Jr Coll Med Nursing & Management, Dept Cosmet Applicat & Management, Yilan, Taiwan

来源：

POWDER TECHNOLOGY | 2015年 / 279卷

关键词：

Adsorb; Ethylenediamine; Indium ions; Magnetic adsorbent; AQUEOUS-SOLUTION; COPPER IONS; NANOPARTICLES; ADSORPTION; ACID; GALLIUM; DYE; PARTICLES; REMOVAL;

D O I：

10.1016/j.powtec.2015.04.015

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

Indium is one of the contaminants of the optoelectronics industry, and adsorption is a potential treatment method for this pollutant A magnetic adsorbent manufactured from magnetite (Fe3O4) can be easily recovered from treated water by magnetic force without requiring further downstream treatment. In this research, the surface of magnetite is modified with oleic acid, methyl methacrylate and ethylenediamine (EDA/MMA/OA/Fe3O4). A magnetic adsorbent (EDA/MMA/OA/Fe3O4) made by magnetite modified with oleic acid, methyl methacrylate and ethylenediamine was used to adsorb indium ions solution in a batch system. The indium ions adsorption behavior by EDA/MMA/OA/Fe3O4 was in good agreement with both the Langmuir and Freundlich adsorption isotherm. The maximum adsorption capacity (q(m)) and Gibbs free energy of indium ions at 298 K was 54.18 mg g(-1) and -17.94 kJ mol(-1), respectively. A pseudo-second-order model could best describe the adsorption kinetics, and the derived activation energy was 5.96 kJ mol(-1). The optimal condition of indium ions desorption from EDA/MMA/OA/Fe3O4 was provided by 0.01 M HNO3 in aqueous solution. (C) 2015 Elsevier B.V. All rights reserved.

引用

页码：247 / 253

页数：7

共 29 条

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