Akademik Veri Yönetim Sistemi
Journal of Boron, cilt.9, sa.1, ss.1-8, 2024 (Scopus)
In this study, the antibiotic removal mechanism of ulexite-derived boron was investigated as an alternative to traditional adsorbents. Tetracycline (TC) was chosen as the antibiotic due to its widespread use and the fact that it causes the development of antibiotic-resistant microorganisms. Tetracycline removal mechanisms were investigated by analyzing reaction isotherms under optimized experimental conditions using boron at different pH, temperature and dosages. The maximum adsorption value of 90.1% was obtained at pH 7, in an environment containing 0.5 g of adsorbent, at 25°C and in an environment where the initial tetracycline concentration was 50 mg/L. It was observed that the adsorption efficiency decreased with increasing temperature. Among the thermodynamic parameters, Gibbs free energy (ΔG°), entropy (ΔS°) and enthalpy (ΔH°) values were found to be-3.892 kJ/mol,-8.895 J/(mol.K) and-3.134 kJ/mol, respectively. The negative ΔG° value calculated in TC removal with boron indicated that adsorption occurs spontaneously, and the negative value of entropy indicates that the disorder at the solid/liquid interface decreased during the adsorption process. The negative value of enthalpy showed that the adsorption was exothermic and TC removal with the use of boron could be randomly applied to adsorption processes.