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Adsorption behaviors of phenol from aqueous solutions have been investigated in batch systems at 303 K and 318 K respectively,using hypercrosslinked polymeric adsorbent(CHA111),aminated hypercrosslinked polymeric adsorbents (NDA101,NDA103,NDA105)and weakly basic polymeric adsorbent(D301)with a view to studying the effect of hydrogen bonding and Van der Waals interactions between adsorbate and the adsorbent.All adsorption isotherms can be well fitted by Langmuir and Freundlich equations.Compared with D301 driven by hydrogen bonding interaction only and CHA111 driven by Van der Waals interaction only,phenol adsorption on aminated adsorbents driven by both hydrogen bonding and Van der Waals interactions were apparently different,i.e.,negative effect for NDA105,positive effect for NDA101 and synergistic effect for NDA103.In this synergistic action,some weak interactions would contribute more or less to the adsorption than they work individually.
Adsorption behaviors of phenol from aqueous solutions have been investigated in batch systems at 303 K and 318 K respectively using hypercrosslinked polymeric adsorbent (CHA111), aminated hypercrosslinked polymeric adsorbents (NDA101, NDA103, NDA105) and weakly basic polymeric adsorbent (D301) with a view to studying the effect of hydrogen bonding and Van der Waals interactions between adsorbate and the adsorbent. All adsorption isotherms can be well fitted by Langmuir and Freundlich equations. Compared with D301 driven by hydrogen bonding interaction only and CHA 111 driven by Van der Waals interaction only , phenol adsorption on aminated adsorbents driven by both hydrogen bonding and Van der Waals interactions were apparently different, ie, negative effect for NDA105, positive effect for NDA101 and synergistic effect for NDA103.In this synergistic action, some weak ions would contribute more or less to the adsorption than they work individually.