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Study on Property and Mechanism of Adsorption of Chlorogenic Acids by Zinc-Containing D401 Macroporous Resin
Corresponding Author(s) : Han Xuan
Asian Journal of Chemistry,
Vol. 26 No. 5 (2014): Vol 26 Issue 5
Abstract
The property and mechanism of the adsorption of chlorogenic acids by zinc-containing D401 macroporous adsorption resin was analyzed. The isothermal adsorption property, the kinetic characteristics, the dynamic adsorption and desorption characteristics of the adsorption of chlorogenic acids by zinc-containing D401 macroporous resin were investigated by the adsorption test. The results indicate that the equilibrium time of adsorption is 2 h. The adsorption follow the second-order kinetic equation with the adsorption rate constant 0.0024 g mg-1 h-1; the adsorption isotherm data correspond well to the Langmuir equation with the maximum adsorption capacity (Qm) 43.10 mg g-1 and the adsorption is a physical adsorption. The adsorption flow rate is 2 BV/h; the solution concentration is 1.3 mg/mL and pH value is 1. The adsorbed chlorogenic acids can be eluted from zinc-containing D401 macroporous resin by 70 % ethanol.
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References
A. Zhang and Q. Ma, Chin. Tradit. Herbal Drugs, 32, 173 (2001).
J. Zhou, Y. Ding and J. Chin, Hosp. Pharm., 36, 69 (2006).
D.S. Grzegorczyk and G. Carta, Chem. Eng. Sci., 51, 807 (1996); doi:10.1016/0009-2509(95)00281-2.
. Di Mauro, E. Arena, B. Fallico, A. Passerini and E. Maccarone, J. Agric. Food Chem., 50, 5968 (2002); doi:10.1021/jf025645s.
A. Gücek, S. Şener, S. Bilgen and M.A. Mazmancı, J. Colloid Interface Sci., 286, 53 (2005); doi:10.1016/j.jcis.2005.01.012.
P. Atkins and J. Paula, Atkin's Physical Chemistry, Oxford University Press, UK, edn 7, p. 989 (2005).
M. Horsfall Jr. and A.I. Spiff, J. Sci. Ind. Res. (India), 64, 613 (2005).