Kinetics Studies for the Adsorption of b-Carotene on Mesoporous Carbon Coated Monolith: Effect of Concentration and Temperature
Moonis Ali Khan
Department of Chemical and Environmental Engineering, Faculty of Engineering Universiti Putra Malaysia, 43400 UPM Serdang, Selangor, Malaysia ; Chemistry Department, College of Science, King Saud University, Riyadh 11451, Saudi Arabia
Thomas S.Y. Choong
Department of Chemical and Environmental Engineering, Faculty of Engineering Universiti Putra Malaysia, 43400 UPM Serdang, Selangor, Malaysia ; INTROP, Universiti Putra Malaysia, 43400 UPM Serdang, Selangor, Malaysia
Luqman T.G. Chuah
Department of Chemical and Environmental Engineering, Faculty of Engineering Universiti Putra Malaysia, 43400 UPM Serdang, Selangor, Malaysia ; INTROP, Universiti Putra Malaysia, 43400 UPM Serdang, Selangor, Malaysia
Robiah Yunus
Department of Chemical and Environmental Engineering, Faculty of Engineering Universiti Putra Malaysia, 43400 UPM Serdang, Selangor, Malaysia
Taufiq Y.H. Yap
Department of Chemistry, Faculty of Science, Universiti Putra Malaysia, 43400 UPM Serdang, Selangor, Malaysia
Muhammad
Department of Chemical Engineering, Faculty of Engineering, Malikussaleh University, Lhokseumawe-Aceh, Indonesia; Department of Chemical and Environmental Engineering, Faculty of Engineering Universiti Putra Malaysia, 43400 UPM Serdang, Selangor, Malaysia
Corresponding Author(s) : Thomas S.Y. Choong
tsyc2@eng.upm.edu.my
Asian Journal of Chemistry,
Vol. 24 No. 7 (2012): Vol 24 Issue 7
The adsorption kinetics for the removal of b-carotene as functions of temperature and initial b-carotene concentration onto mesoporous carbon coated monolith in isopropyl alcohol and n-hexane solutions was investigated. The adsorption capacity increased as initial b-carotene concentration and temperature increased. Two kinetic models, pseudo-first-order and pseudo-second-order, were used to describe the adsorption kinetics. To identify the adsorption mechanism rate parameters for intraparticle diffusion model were evaluated. The results showed that the adsorption of b-carotene onto mesoporous carbon coated monolith followed pseudofirst- order model in isopropyl alcohol solution and pseudo-second-order model in n-hexane solution. The activation energies were 11.45 and 9.41 kJ/mol in isopropyl alcohol and n-hexane solutions, respectively.
Ali Khan, M., S.Y. Choong, T., T.G. Chuah, L., Yunus, R., Y.H. Yap, T., & Muhammad, . (2012). Kinetics Studies for the Adsorption of b-Carotene on Mesoporous Carbon Coated Monolith: Effect of Concentration and Temperature. Asian Journal of Chemistry, 24(7), 3155–3161. Retrieved from https://asianpubs.org/index.php/ajchem/article/view/9317
