Akademik Veri Yönetim Sistemi
WATER AIR AND SOIL POLLUTION, cilt.236, sa.13, 2025 (SCI-Expanded, Scopus)
It is of great importance to remove azo dyes that negatively affect living life from wastewater. Three different metal vanadate nanoparticles synthesized using the simple hydrothermal method were used as adsorbents to remove Trypan Blue (TRB), an azo dye and especially a pharmaceutical waste product, from wastewater. Metal vanadate nanoparticles (AlV3O9 (AlV), ZnV3O8(ZnV) and Co3V2O8(CoV) were characterized by XRD, BET, SEM and ATR/FTIR. The different adsorption isotherms were applied at 25, 35 and 45 & ring;C at pH value of 3. According to the Langmuir isotherm, qmax values at 25 & ring;C were found to be 65 mg/g, 500 mg/g and 100 mg/g for CoV, AlV and ZnV, respectively. Thermodynamic adsorption was calculated by Van't Hoff equation. Gibbs free energy was found to be less than zero for AlV and CoV, while greater than zero for ZnV. This showed that AlV and CoV adsorption was exothermic, while ZnV adsorption was endothermic. These results are consistent with Delta G degrees calculated in Flory-Huggins (F-H) isotherm. It was observed that the kinetic data for all adsorbents at 25 ppm at different temperatures were compatible with the pseudo-second order part. This research exhibited the aluminum vanadate can be utilized as an effective adsorbent for TRB removal from wastewater.