Preparation of Ca-alginate coated nZVI core shell beads for uranium (VI) removal from aqueous solution

被引：7
|
作者：
Hu, Shuhong [1 ,2 ]
Lin, Xiaoyan [1 ,2 ]
Zhang, Yahui [1 ,2 ]
Shi, Meiling [1 ]
Luo, Xuegang [2 ]
机构：
[1] Southwest Univ Sci & Technol, Sch Mat Sci & Engn, Mianyang 621010, Sichuan, Peoples R China
[2] Minist Educ, Engn Res Ctr Biomass Mat, Mianyang 621010, Sichuan, Peoples R China
来源：
JOURNAL OF RADIOANALYTICAL AND NUCLEAR CHEMISTRY | 2017年 / 314卷 / 03期
关键词：
Core-shell; Coaxial electronstatic spinning; Adsorption; Uranium; Reduction; ZERO-VALENT IRON; CU II; ADSORPTION; NANOPARTICLES; WATER; BIOSORPTION; REDUCTION; COMPOSITE; KINETICS; U(VI);
D O I：
10.1007/s10967-017-5529-y
中图分类号：
O65 [分析化学];
学科分类号：
070302 ; 081704 ;
摘要：
In this study, the core-shell nanoscale zero-valent iron (nZVI)@Alg-Ca beads were synthesized by coaxial electronic injection method for removal of U (VI) from aqueous solution, and characterized by SEM, EDX and XPS. The results showed that the pseudo-second-order models and the Langmuir isotherm model fitted well with the data obtained. The removal mechanism may include both physical adsorption of U (VI) on the surface or inside of core-shell nZVI@Alg-Ca beads and subsequent reduction of U (VI) to U (IV). Therefore, the core-shell nZVI@Alg-Ca beads would have an application prospect in effective removal of U (VI) contamination from aqueous solution.
引用
收藏
页码：2405 / 2416
页数：12
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