Uranium sorption from aqueous solutions using polyacrylamide-based chelating sorbents

被引：39
作者：
Younes, Ahmed A. [1 ]
Masoud, Ahmed M. [2 ]
Taha, Mohamed H. [2 ]
机构：
[1] Helwan Univ, Dept Chem, Fac Sci, Cairo, Egypt
[2] Nucl Mat Author, Cairo, Egypt
来源：
SEPARATION SCIENCE AND TECHNOLOGY | 2018年 / 53卷 / 16期
关键词：
Uranium; sorption; aqueous solutions; polyacrylamide; chelating; sorbents; THIN-FILMS TECHNIQUE; SCHIFF-BASE; DIFFUSIVE GRADIENTS; SELECTIVE REMOVAL; NATURAL ZEOLITE; HYBRID SORBENT; U(VI) IONS; SILICA-GEL; RECOVERY; ACID;
D O I：
10.1080/01496395.2018.1467450
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
This article introduces an investigation on the sorption power of two polyacrylamide-based chelating sorbents for uranium ion removal from aqueous solutions. The studied sorption parameters involved pH, contact time, initial uranium concentration, and polymer dosage. The results revealed that a maximum uptake percentage of 65.3 mg/g and 20.1 mg/g for polymers I and II, respectively, could be obtained at pH 4 with 120 min shaking time. Based on isotherm, kinetic, and thermodynamic studies, the sorption process of uranium on the chelating polymers is said to follow Langmuir isotherm model with pseudo second-order mechanism and exothermic nature.
引用
收藏
页码：2573 / 2586
页数：14
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