Acid Blue 80 Removal from Aqueous Solution by Activated Carbon Obtained from Nerium Oleander Fruits

Authors : Osman ÜNER

Pages : 86-99

Doi:10.29132/ijpas.908703

View : 18 | Download : 7

Publication Date : 2021-06-30

Article Type : Research Paper

Abstract :The present work reports acid blue 80 insert ignore into journalissuearticles values(AB80); adsorption performances on the activated carbon prepared from Nerium oleander fruits insert ignore into journalissuearticles values(NAC);. Langmuir isotherm model and pseudo second order model were determined to be best fitting models for AB80 adsorption on NAC, and its maximum adsorption capacities were calculated to be 88.03, 102.04, and 113.96 mg g-1 at 25, 35, and 45 °C, respectively. Also, the efficiency of adsorption increased as adsorption pH decreased. While the adsorption rate was found to be fast during the first 60 minutes, adsorption velocity decreased with passing contact time. Moreover, via the thermodynamic parameters, the adsorption was determined to be spontaneous, feasible, and endothermic. From the FTIR spectra, the interactions of carbonyl groups on NAC with AB80 molecules and π- π stacking interactions between NAC and AB80 molecules were determined to be possible interactions during the adsorption.
Keywords : Acid blue 80, textile dye, Nerium oleander fruits, adsorption, , activated carbon