期刊
CHEMICAL ENGINEERING COMMUNICATIONS
卷 198, 期 5, 页码 711-725出版社
TAYLOR & FRANCIS INC
DOI: 10.1080/00986445.2011.532746
关键词
Adsorption; Aluminum; Bockris-Swinkels isotherm; Corrosion; Dubinin-Radushkevich isotherm; Kinetics
The adsorption of fluconazole (FLU) on aluminum surface from 0.1 M HCl solution was studied using chemical technique at 30 degrees-50 degrees C. The values for free energy of adsorption, Delta G(ads)(0), were calculated at each surface coverage, theta, of the studied compound by applying the mathematical model of the Bockris-Swinkels adsorption isotherm. The phenomenon of physical adsorption is proposed from the value of Gibbs free energy, Delta G(ads)(0), obtained from the Bockris-Swinkels adsorption equation and the mean adsorption energy, E, using the adsorption isotherm model of DubininRadushkevich (D-R). A zero-order kinetics relationship with respect to aluminum was obtained with and without FLU from the kinetic treatment of the data.
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