In situ synthesis of flower-like ZnO/ZnHCF composites for cesium removal from water

被引：2

作者：

Ren, Fan ^{[1
,2
]}

Zhang, Zhiquan ^{[1
,2
]}

Xu, Guangliang ^{[1
,2
,3
]}

机构：

[1] Southwest Univ Sci & Technol, State Key Lab Environm Friendly Energy Mat, Mianyang 621010, Peoples R China

[2] Southwest Univ Sci & Technol, Sch Mat & Chem, Mianyang 621010, Peoples R China

[3] Southwest Univ Sci & Technol, Analyt & Testing Ctr, Mianyang 621010, Peoples R China

来源：

JOURNAL OF RADIOANALYTICAL AND NUCLEAR CHEMISTRY | 2023年 / 332卷 / 06期

关键词：

ZnO; ZnHCF compsite; Cs+ adsorption; Flower-like morphology; Large adsorption capacity; BLUE/GRAPHENE OXIDE NANOCOMPOSITES; PRUSSIAN BLUE NANOPARTICLES; CS ADSORPTION CAPABILITY; DECONTAMINATION; POTASSIUM;

D O I：

10.1007/s10967-023-08873-w

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

In this research, composites of ZnO in the form of flowers with ZnFe Prussian blue analogues were prepared by in situ synthesis, and found the synthesis conditions with maximum removal efficiency. The flower-like ZnO enhances the dispersion of the ZnHCF nanoparticles, which means that the Prussian blue analogue has higher adsorption utilisation. In addition, various adsorption experiments revealed that the adsorbent has the best adsorption capacity under neutral aqueous solution conditions and is capable of high removal rate adsorption in multi-ion aqueous solution systems. Apart from this, the adsorption process satisfies a pseudo-second-order kinetic model, indicating that chemisorption dominates, and the Langermuir adsorption model suggests that adsorption occurs on a monolayer and is favourable, with a maximum adsorption capacity of 322.4 mg/g, while adsorption is a spontaneous, heat-absorbing process. Finally, a comparison with other Prussian blue analogues revealed the potential of flower-like ZnO/ZnHCF for efficient removal of Cs+ from water.

引用

页码：2123 / 2134

页数：12