Removal of crystal Violet From Aqueous Solutions by A Newly Developed Adsorbent: İsotherm, Kinetics, and Thermodynamics

Authors : İlhan KÜÇÜK, Merve GÖZCÜ

Pages : 1946-1957

Doi:10.21597/jist.1275258

View : 47 | Download : 42

Publication Date : 2023-09-01

Article Type : Research Paper

Abstract :Aim of this study, adsorption potential of modified and natural materials is investigated. The adsorbent used is watermelon peel insert ignore into journalissuearticles values(WP); derived from agricultural wastes to remove crystal violet insert ignore into journalissuearticles values(CV);. The modified and raw adsorbent was characterized by Elemental analysis, Scanning electron microscope insert ignore into journalissuearticles values(SEM);, X-ray diffraction insert ignore into journalissuearticles values(XRD);, and Fourier transform infrared spectroscopy insert ignore into journalissuearticles values(FTIR);. The studied parameters are temperature, initial metal concentration, and contact time. The most suitable kinetic insert ignore into journalissuearticles values(R2=0.99); and isotherm insert ignore into journalissuearticles values(R2=0.99); models were determined as Pseudo-second-order and Langmuir, respectively. The maximum adsorption capacity insert ignore into journalissuearticles values(qmax); according to Langmuir is 236.9 mg/g at 30°C. Thermodynamic analysis revealed spontaneous and endothermic adsorption of CV on modified watermelon peels. These results demonstrate that crystal violet can be removed from agricultural wastes using a low-cost adsorbent.
Keywords : Watermelon Peel, Agricultural Waste, Characterization, Adsorption, Crystal Violet Dye