Akademik Veri Yönetim Sistemi
Journal of the Indian Chemical Society, cilt.102, sa.12, 2025 (SCI-Expanded, Scopus)
In this study, crystalline Ba2Mg(BO3)2 powders were prepared, characterized, and investigated for the first time as possible adsorbents for Acid Violet 17 dye. Some characterization techniques, such as Fourier transform-infrared spectroscopy (FT-IR), X-ray diffraction (XRD), and scanning electron microscopy (SEM) and energy-dispersive spectroscopy (EDS)analysis, were used to confirm the structure of adsorbents and to investigate crystalline and surface properties. Optimal removal efficiencies for AV 17 (92.86 %) were achieved within 180 min at a 50 mg/L AV 17 concentration and 0.75 g/L adsorbent dose. Adsorption followed the Freundlich isotherm (R2 = 0.9756) and pseudo-second-order kinetics (R2 = 0.99). Furthermore, the thermodynamic parameters confirmed that the adsorption of AV 17 is both spontaneous and endothermic. The calculated Gibbs free energy values (−20 kJ/mol < ΔG 0 < 0) suggest that the process is primarily governed by physisorption. Additionally, the possible adsorption mechanism between the dye and the adsorbent was explained in detail. Recovery attempts using thermal treatment were also performed. No significant decrease in the removal efficiency of the adsorbent was observed after the cycles, except in the 5th cycle (78.88 %). The high adsorption capacity (370.37 mg/g), the combined physical and chemical adsorption mechanisms, and the excellent reusability of the adsorbent clearly demonstrate its novelty. These findings not only expand the application scope of borate-based materials but also provide a promising and sustainable approach for the treatment of dye-containing industrial wastewater.