2025/01/01 by Kadriye Esen Erden · 1 voice
Chemistry · Environmental Science · Earth and Planetary Sciences · #Radioactive element chemistry and processing #Chemical Synthesis and Characterization #Geochemistry and Elemental Analysis
paper · pdf · doi:10.1515/chem-2025-0170
openalex publication_date 2025/01/01 · openalex created_date 2025/07/10 · openalex updated_date 2026/05/21
Abstract The study aimed to explore the potential of Kromalgin , a cost-effective and readily available dental material, as a sustainable solution for the removal of U( VI ) metal ions from aqueous solutions. In this context, Kromalgin , a single-use dental impression material discarded after each application, was employed for uranium adsorption, addressing the environmental concern of radioactive pollution while simultaneously providing a method for recycling dental waste. The parameters affecting the adsorption of U( VI ) ions on the adsorbent, such as pH, amount of adsorbent, concentration of uranium ions, temperature, and contact time, were examined. Under optimum conditions, a 94.56% adsorption efficiency was achieved. The experimental results of adsorption of U( VI ) ions on Kromalgin were evaluated by applying the Langmuir, Freundlich, and Dubinin–Radushkevich isotherm models. According to the obtained data, the adsorption of U( VI ) ions on Kromalgin complies with all three isotherm models. Thermodynamic parameters such as enthalpy change (Δ H 0 ), free energy change (Δ G 0 ), and entropy change (Δ S 0 ) were calculated, indicating that the adsorption process is spontaneous and endothermic in nature. The results indicate an adsorption capacity of 142.86 mg g −1 and an adsorption energy of 17.81 kJ mol −1 . The abundance, cost-effectiveness, and highly effective results of Kromalgin have positioned it as a reasonable option for U(VI) removal.