AI Article Synopsis
- The research aims to effectively extract and purify europium (Eu) from nuclear waste using a specially synthesized composite material.
- Key characterization techniques such as FTIR, TGA, DTA, SEM, and BET were employed, revealing that the optimal Eu removal efficiency of 86.4% occurs at a pH of 4.5 after 180 minutes.
- The study further indicates that the sorption follows pseudo second-order kinetics and fits the Langmuir isotherm model, demonstrating that this polymer composite is highly effective for recovering radioactive Eu ions from various water sources.
Article Abstract
The goal of this research is to separate and purify Eu generated from nuclear waste and/or research laboratories using synthesized composite material. Fourier infrared (FTIR), thermal gravimetric analysis (TGA), differential thermal analysis (DTA), scanning electron microscopy (SEM), and Brunauer-Emmett-Teller (BET) surface area measurements were used to characterize the composite material. On the Eu sorption process, the impacts of pH, contact time, and initial feed concentration were also examined. The best Eu removal efficiency was 86.4% achieved at pH 4.5 and 180 min. The sorption data of Eu ions were investigated using kinetic modeling and sorption isotherm models, and it was clear that the pseudo second-order kinetics and the Langmuir isotherm are the best matches for the sorption process. The produced adsorbent capacity was 11.48 mg g. Application study demonstrated that the removal efficiency (%) reached 92.4, 92.2 and 95.2% of Eu (carrier free) from river, tab and groundwater, respectively. According to the findings of this investigation, the proposed polymer composite is a strong candidate for recovering radioactive Eu ions from liquid waste.
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| http://dx.doi.org/10.1016/j.apradiso.2022.110543 | DOI Listing |
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