Adsorption Isotherms for CBY 3G-P Dye Removal from Aqueous Media Using TiO<sub>2</sub> Degussa, Fe<sub>2</sub>O<sub>3</sub>, and TiO<sub>2</sub>/(DPC)

The adsorption of Cibacron Brilliant Yellow (CBY) 3-GP dye onto TiO2 Degussa, Fe2O3, and anatase/Diphenylcarbizide in aqueous solution was studied with respect to temperature, contact time, pH. CBY at equilibrium increased as the initial concentration for TiO2/DPC, while it decreased Degussa; however, concentration. best removal efficiency obtained 1 mg amount decreases rising temperature. negative ΔH° reveals is exothermic extremely ΔS° Degussa. value indicates a regular increase randomness TiO2/DPC Fe2O3 interface during adsorption. intraparticle diffusion, pseudo-first- second-order kinetic models were used. Langmuir, Temkin, Freundlich, Dubbin examined describe isotherms. usage Degussa that sorption favorable.