Systematic effect of different external metals of hexacyanoferrates on cesium adsorption behavior and mechanism

被引：4

作者：

Nong, Caiyong ^{[1
,2
]}

Li, Xiaodong ^{[3
]}

Xu, Junhua ^{[2
]}

机构：

[1] Fuzhou Univ, Coll Chem, Fuzhou 350108, Fujian, Peoples R China

[2] Chinese Acad Sci, Fujian Inst Res Struct Matter, Nucl Chem & Separat & Purificat Technol Lab, Fuzhou 350002, Fujian, Peoples R China

[3] Univ Helsinki, Dept Chem Radiochem, PON 55, FIN-00014 Helsinki, Finland

来源：

JOURNAL OF RADIOANALYTICAL AND NUCLEAR CHEMISTRY | 2023年 / 332卷 / 04期

关键词：

Hexacyanoferrates; Vacancies; Cesium removal; Ion exchange; Adsorption mechanism; POTASSIUM NICKEL HEXACYANOFERRATE; PRUSSIAN BLUE ANALOGS; ION-EXCHANGE; SORPTION; EQUILIBRIUM; CS+; IMMOBILIZATION; NANOPARTICLES; KINETICS; REMOVAL;

D O I：

10.1007/s10967-022-08721-3

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

This study aims to investigate Cs removal by different external metals hexacyanoferrates M-II- Fe PBA (M-II: Co, Ni and Cu). Three PBAs were synthesized, characterized and followed by batch experiment testing and model fitting. Among the three PBAs, Cu-Fe PBA possessed the highest capacity 234.28 mg g(-1), the highest K-d 2.8 x106 mL g(-1) and the fastest adsorption kinetics on Cs removal. Moreover, Cu-Fe PBA and Ni-Fe PBA were the more selective sorbents in coexisting ions study. Finally, the adsorption mechanism was proposed. This study provides new insights into the vacancies effect of the PBA structure and Cs adsorption application.

引用

页码：1263 / 1275

页数：13

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