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

页码：2405 / 2416

页数：12

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