吸附
锶
朗缪尔吸附模型
双功能
水溶液
铯
化学工程
普鲁士蓝
离子交换
化学
纳米颗粒
饱和(图论)
环境修复
沸石
材料科学
核化学
无机化学
离子
纳米技术
有机化学
污染
电极
生态学
组合数学
数学
电化学
生物
催化作用
物理化学
工程类
作者
Bumjun Park,Seyed Majid Ghoreishian,Yeonho Kim,Bum Jun Park,Sung-Min Kang,Yun Suk Huh
出处
期刊:Chemosphere
[Elsevier]
日期:2021-01-01
卷期号:263: 128266-128266
被引量:36
标识
DOI:10.1016/j.chemosphere.2020.128266
摘要
In current work, Prussian blue (PB)- and hydroxyapatite (HAp)-embedded micro-adsorbents (PB-HAp-MAs) were rationally fabricated through an easy and flexible custom-made micronozzle system as a novel bifunctional adsorbent. The adsorption performance of the as–prepared samples was conducted based on the removal of cesium (Cs+) and strontium (Sr2+) ions. Adsorption behaviors of the PB-HAp-MAs were also evaluated as function extrusion dimensions and adsorbate concentration. The adsorption isotherm was well fitted by the Langmuir model with adsorption capacities of 24.688 mg g−1 and 29.254 mg g−1 for Cs+ and Sr2+, respectively. Specially, the enhanced adsorption activity can be synergistically attributed to the porous nature of the developed alginate backbone with a high surface area of encapsulated functional nanoparticles, thus leading to rapid saturation within 1 min. In addition, the as-synthesized PB-HAp-MAs were successfully separated from the aqueous solution within 10 s by applying a magnetic field. We expect that our findings will provide valuable guidelines towards developing highly efficient adsorbents for environmental remediation.
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