AI Article Synopsis
- Researchers created new micro-adsorbents called PB-HAp-MAs using a custom micronozzle system to capture cesium (Cs) and strontium (Sr) ions.
- The adsorption efficiency of these materials was tested, showing impressive maximum capacities of 24.688 mg/g for Cs and 29.254 mg/g for Sr, and they quickly reached saturation in just 1 minute.
- The innovative adsorbents can be rapidly separated from water using a magnetic field, potentially aiding in environmental cleanup efforts.
Article Abstract
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 (Sr) 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 and 29.254 mg g for Cs and Sr, 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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| http://dx.doi.org/10.1016/j.chemosphere.2020.128266 | DOI Listing |
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