Magnetite modified with amine polymer to adsorb indium ions

Chyow San Chiou, Kai Jen Chuang, Hua Wei Chen, Yi Chen Chen

研究成果: 雜誌貢獻文章同行評審

10 引文 斯高帕斯(Scopus)

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 (qm) and Gibbs free energy of indium ions at 298K was 54.18mgg-1 and -17.94kJmol-1, respectively. A pseudo-second-order model could best describe the adsorption kinetics, and the derived activation energy was 5.96kJmol-1. The optimal condition of indium ions desorption from EDA/MMA/OA/Fe3O4 was provided by 0.01M HNO3 in aqueous solution.

原文英語
頁(從 - 到)247-253
頁數7
期刊Powder Technology
279
DOIs
出版狀態已發佈 - 七月 1 2015

ASJC Scopus subject areas

  • 化學工程 (全部)

指紋

深入研究「Magnetite modified with amine polymer to adsorb indium ions」主題。共同形成了獨特的指紋。

引用此