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

被引：0
作者：
Fan Ren
Zhiquan Zhang
Guangliang Xu
机构：
[1] Southwest University of Science and Technology,State Key Laboratory of Environment
[2] Southwest University of Science and Technology,Friendly Energy Materials
[3] Southwest University of Science and Technology,School of Materials and Chemistry
来源：
Journal of Radioanalytical and Nuclear Chemistry | 2023年 / 332卷
关键词：
ZnO/ZnHCF compsite; Cs; adsorption; Flower-like morphology; Large adsorption capacity;
D O I：
暂无
中图分类号：
学科分类号：
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.
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页码：2123 / 2134
页数：11
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