Adsorption and Kinetic Studies on the Inhibition Potential of Fluconazole for the Corrosion of Al in HCl Solution

作者：Obot I B^*; Obi Egbedi N O; Umoren S A; Ebenso E E

来源：Chemical Engineering Communications, 2011, 198(5): 711-725.

DOI：10.1080/00986445.2011.532746

• 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.

• 出版日期2011
• 单位西北大学