Copper hexacyanoferrate nanoparticle-decorated biochar produced from pomelo peel for cesium removal from aqueous solution

被引：17

作者：

Tao, Qinqin ^{[1
,2
]}

Zhang, Xu ^{[2
]}

Huang, Dejuan ^{[1
]}

Huang, Guolin ^{[1
]}

Fan, Jiali ^{[1
]}

Peng, Hong ^{[1
]}

Dai, Ying ^{[1
]}

Prabaharan, Krishnamoorthy ^{[1
]}

机构：

[1] East China Univ Technol, State Key Lab Nucl Resources & Environm, Nanchang 330013, Jiangxi, Peoples R China

[2] East China Jiaotong Univ, Sch Civil Engn & Architecture, Nanchang 330013, Jiangxi, Peoples R China

来源：

JOURNAL OF RADIOANALYTICAL AND NUCLEAR CHEMISTRY | 2019年 / 322卷 / 02期

基金：

中国国家自然科学基金;

关键词：

Cesium; Biochar; Adsorption; Copper hexacyanoferrate; PRUSSIAN BLUE; POROUS CARBON; ADSORPTION; SEPARATION; EQUILIBRIUM; ADSORBENT; HYDROGEL; KINETICS; SORPTION; METAL;

D O I：

10.1007/s10967-019-06709-0

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

A microporous composite (CuHCF/PP600) for cesium removal was successfully prepared by copper hexacyanoferrate (CuHCF) dispersed into a biochar (pomelo peel was carbonized at 600 degrees C). In comparison with CuHCF/PP600 and pure CuHCF, it was showed that CuHCF/PP600 had better performances on sedimentation and cesium removal. The maximum removal efficiency of cesium by the composite is 30.06 mg/g (at pH 7.0). Adsorption kinetic and isotherm of CuHCF/PP600 were followed to Langmuir isotherm model and pseudo-second-order kinetic model respectively. Thermodynamic analysis shows that the adsorption process was endothermic. The removal efficiency of Cs+ was down less than 5% in the presence of Na+, K+, Mg2+. The results indicate that CuHCF/PP600 is a promising adsorbent for cesium removal from aqueous solution.

引用

页码：791 / 799

页数：9

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