Chromium(VI) Removal from Aqueous Solution by Magnetite Coated by a Polymeric Ionic Liquid-Based Adsorbent

被引：11

作者：

Alexandra Ferreira, Thania ^{[1
]}

Antonio Rodriguez, Jose ^{[1
]}

Elena Paez-Hernandez, Maria ^{[1
]}

Guevara-Lara, Alfredo ^{[1
]}

Barrado, Enrique ^{[2
]}

Hernandez, Prisciliano ^{[3
]}

机构：

[1] Univ Autonoma Estado Hidalgo, Area Acad Quim, Carr Pachuca Tulancingo Km 4-5, Mineral De La Reforma 42184, Hidalgo, Mexico

[2] Univ Valladolid, Fac Ciencias, Dept Quim Analit, Paseo de Belen 7, E-47011 Valladolid, Spain

[3] Univ Politecn Francisco I Madero, Area Energias, Tepatepec 42640, Hidalgo, Mexico

来源：

MATERIALS | 2017年 / 10卷 / 05期

关键词：

chromium(VI); magnetic particles; ionic liquid; adsorption capacity; HEXAVALENT CHROMIUM; ADSORPTION; WATER; NANOPARTICLES; EQUILIBRIUM; BIOSORPTION; REMEDIATION; EXTRACTION; KINETICS;

D O I：

10.3390/ma10050502

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

An evaluation of the chromium(VI) adsorption capacity of four magnetite sorbents coated with a polymer phase containing polymethacrylic acid or polyallyl-3-methylimidazolium is presented. Factors that influence the chromium(VI) removal such as solution pH and contact time were investigated in batch experiments and in stirred tank reactor mode. Affinity and rate constants increased with the molar ratio of the imidazolium. The highest adsorption was obtained at pH 2.0 due to the contribution of electrostatic interactions.

引用

页数：9

共 33 条

[1] Immobilization of [Bmim+Tf2N-] hydrophobic ionic liquid on nano-silica-amine sorbent for implementation in solid phase extraction and removal of lead [J].