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

被引：69

作者：

Al-bishri, Hassan M. ^{[2
]}

Abdel-Fattah, Tarek M. ^{[3
,4
]}

Mahmoud, Mohamed E. ^{[1
]}

机构：

[1] Univ Alexandria, Fac Sci, Dept Chem, Alexandria 21321, Egypt

[2] King Abdullaziz Univ, Fac Sci, Dept Chem, Jeddah 21589, Saudi Arabia

[3] Jefferson Natl Lab, Appl Res Ctr, Newport News, VA 23606 USA

[4] Christopher Newport Univ, Dept Mol Biol & Chem, Newport News, VA 23606 USA

来源：

JOURNAL OF INDUSTRIAL AND ENGINEERING CHEMISTRY | 2012年 / 18卷 / 04期

关键词：

Hydrophobic IL; Nano-silica; Lead; Solid phase extraction; Removal; AQUEOUS-SOLUTIONS; METAL-IONS; SELECTIVITY PROPERTIES; WATER SAMPLES; ADSORPTION; PRECONCENTRATION; MICROEXTRACTION; EQUILIBRIUM; CARBON; BASES;

D O I：

10.1016/j.jiec.2012.01.018

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

A method is described for highly efficient adsorptive removal of lead with a maximum metal capacity value of 1.300 mmol g(-1) by using physically immobilized [Bmim(+)Tf(2)N(-)] on the surface of nano-silica-amine sorbent. Lead sorption was found to be highly dependent and controlled by several experimental factors. The effect of sorbent dose played a significant role by yielding the maximum lead adsorption capacity when 100 mg sorbent was used. The effect of lead concentration was examined by various adsorption isotherms. The potential applications for removal of Pb(II) were studied and the percentage recovery values were 99.0-100.0 +/- 2.0-5.0%. (c) 2012 The Korean Society of Industrial and Engineering Chemistry. Published by Elsevier B.V. All rights reserved.

引用

页码：1252 / 1257

页数：6

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