In-situ synthesis of magnetite acrylamide amino-amidoxime nanocomposite adsorbent for highly efficient sorption of U(VI) ions

被引：44
作者：
Akl, Zeinab F. [1 ]
El-Saeed, Shymaa M. [2 ]
Atta, Ayman M. [2 ,3 ]
机构：
[1] ENRRA, 3 Ahmed El Zomor St,POB 11762, Nasr City, Cairo, Egypt
[2] Egyptian Petr Res Inst, Petr Applicat Dept, POB 11727, Cairo, Egypt
[3] King Saud Univ, Dept Chem, Coll Sci, POB 2455, Riyadh 11451, Saudi Arabia
来源：
JOURNAL OF INDUSTRIAL AND ENGINEERING CHEMISTRY | 2016年 / 34卷
关键词：
Amidoxime; Uranyl; Recovery; Magnetite; Nanoparticles; SOLID-PHASE EXTRACTION; ACID-BASED HYDROGELS; CORROSION-INHIBITORS; URANYL IONS; URANIUM VI; REMOVAL; NANOPARTICLES; ADSORPTION; COMPOSITE; COPOLYMERIZATION;
D O I：
10.1016/j.jiec.2015.10.042
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
A new in-situ magnetite nanoparticles inserted into crosslinked poly (acrylamido-amineamidoxime-co-2-acrylamido-2-methylpropane sulfonic acid (AO/AMPS) were prepared and used as novel uranium adsorbents. The prepared composites were applied as adsorbents to remove U(VI) from aqueous solutions that could be separated by a simple magnetic separation method. The removal of U(VI) was evaluated by spectrophotometric method using arsenazo-Ill as complexing agent. The results showed that, the sorption process strongly depended on pH and the sorption equilibrium can be reached within 150 min. The Langmuir sorption isotherm model correlated well with the uranium sorption equilibrium data for the concentration range of 50-500 mg/L. (C) 2015 The Korean Society of Industrial and Engineering Chemistry. Published by Elsevier B.V. All rights reserved.
引用
收藏
页码：105 / 116
页数：12
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