Abstract: The dynamics and thermodynamics model about the process of macroporous resin adsorption for flavonoids in Broussonetia papyrifera leaves extracts has not been reported.In order to find the law of the process,this study investigated the adsorption kinetics and thermodynamics behavior of flavonoids in B. papyrifera leaves extracts on D-101 type macroporous adsorption resin.The results showed that the macroporous resin adsorption process for flavonoids in B.papyrifera leaves extracts reached balance after 9 hours.The adsorption fitted with the pseudo-second-order kinetic model.Static adsorption isotherms at different temperatures illustrated that the process of adsorption for flavonoids in B.papyrifera leaves extracts was well fitted by Freundlich-type isotherm equation and the adsorption was favorable type.ΔH<0,ΔG<0 and ΔS>0 indicated that the adsorption was an exothermic process and enthalpy promoting process.

Key words: D-101 macroporous adsorption resin, Broussonetia papyrifera leaves, flavonoids, adsorption dynamics and thermodynamics