Preparation of zero-valent iron-nickle bimetallic composite for Se(IV) adsorption from aqueous solution

被引：8
|
作者：
Du, Yanjun [1 ,2 ]
Fu, Xiaohui [2 ]
Zhou, Qing [1 ]
Zhao, Jiankun [2 ]
Wu, Hexi [2 ]
Li, Xiaoyan [1 ,2 ]
Liu, Yibao [1 ,2 ]
Le, Zhanggao [1 ,3 ]
机构：
[1] East China Univ Technol, State Key Lab Nucl Resources & Environm, Nanchang 330013, Jiangxi, Peoples R China
[2] East China Univ Technol, Sch Nucl Sci & Engn, Nanchang 330013, Jiangxi, Peoples R China
[3] East China Univ Technol, Sch Chem Biol & Mat Sci, Nanchang 330013, Jiangxi, Peoples R China
来源：
JOURNAL OF RADIOANALYTICAL AND NUCLEAR CHEMISTRY | 2023年 / 332卷 / 03期
基金：
中国国家自然科学基金;
关键词：
Iron; Nickel; Selenium; Adsorption; Mechanism; MULTIWALLED CARBON NANOTUBES; EFFICIENT REMOVAL; SELENIUM IONS; WATER; HYDROXIDE; SORPTION;
D O I：
10.1007/s10967-023-08789-5
中图分类号：
O65 [分析化学];
学科分类号：
070302 ; 081704 ;
摘要：
Se-79 is one of the important radionuclides in the safety evaluation of high-level radioactive waste repository due to its long half-life and highly fissionable radioactivity. Nanoscale zero valent iron-nickel bimetallic composite (Fe-0/Ni-0) was fabricated by liquid phase reduction method for Se(IV) adsorption from aqueous solution. The effects of pH, solid-liquid ratio, time, temperature, initial concentration of Se(IV) on the adsorption of Se(IV) by Fe-0/Ni-0 were investigated. Fe-0/Ni-0 was characterized by SEM, XPS, XRD, FT-IR, BET and Zeta potential, and the mechanism of removing Se(IV) was analyzed. The results showed that Fe-0/Ni-0 had a good removal effect on Se(IV). When pH was 3.5, the solid-liquid ratio was 0.3 g L-1, the reaction time was 40 min, the maximum adsorption capacity of Se(IV) by Fe-0/Ni-0 could reach 180 mg g(-1). The research results can provide a theoretical basis for the treatment of wastewater containing Se(IV).
引用
收藏
页码：785 / 796
页数：12
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