Application of the Polanyi potential theory to phthalates adsorption from aqueous solution with hyper-cross-linked polymer resins.

Application of the Polanyi potential theory to phthalates adsorption from aqueous solution with hyper-cross-linked polymer resins. Research Abstract Details 

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Application of the Polanyi potential theory to phthalates adsorption from aqueous solution with hyper-cross-linked polymer resins. Abstract Text:

Zhengwen Xu,Weiming Zhang,Bingcai Pan,Changhong Hong,Lu Lv,Qingjian Zhang,Bingjun Pan,Quanxing Zhang,Zhengwen Xu,Weiming Zhang,Bingcai Pan,Changhong Hong,Lu Lv,Qingjian Zhang,Bingjun Pan,Quanxing Zhang,

The adsorption equilibria of dimethyl phthalate (DMP) and diethyl phthalate (DEP) on two hyper-cross-linked polymer resins (NDA-99 and NDA-150) in aqueous solution were investigated at 298 K. And a coal-based granular activated carbon (AC-750) was chosen for comparison. All the adsorption equilibrium data of DMP were well fitted by the Polanyi-based isotherm modeling (Polanyi-Manes (PM) equation), and the characteristic curves of the three adsorbents were obtained. It is noteworthy that a reasonably good agreement was obtained between the combined micropore and mesopore volume of adsorbents and the corresponding adsorption volume capacity for phthalates. Compared to the granular activated carbon (AC-750), the greater adsorption performances of the two resins (NDA-99 and NDA-150) were assumed to result from their more abundant micro- and mesopore structure, where phthalates can be intensively adsorbed by pore-filling mechanism. According to the exponent b value of the PM equation, NDA-99 and NDA-150 show the more micro- and mesopore heterogeneity than AC-750. On the other hand, the functional groups on the adsorbent surfaces did not take a notable effect on the adsorption equilibria of phthalates. The theory equilibrium adsorption amounts of DEP, predicted by the specific characteristic curve of each adsorbent, agree well with the experimental ones, respectively. The characteristic curve of hyper-cross-linked polymer resins and its prediction of phthalates adsorption calculated by Polanyi-based isotherm modeling have a potential applicability for field applications.

Application of the Polanyi potential theory to phthalates adsorption from aqueous solution with hyper-cross-linked polymer resins. Publishing Authors By Initials

Z Xu,W Zhang,B Pan,C Hong,L Lv,Q Zhang,B Pan,Q Zhang,Z Xu,W Zhang,B Pan,C Hong,L Lv,Q Zhang,B Pan,Q Zhang,

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Application of the Polanyi potential theory to phthalates adsorption from aqueous solution with hyper-cross-linked polymer resins. Journal Published:

PUBLICATION TYPE: Journal Article

Journal: Journal of colloid and interface science

VOLUME: 319

Page Numbers: 392-7

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ISSN: 0021-9797

DAY: 15

MONTH: 12

YEAR: 2007

Application of the Polanyi potential theory to phthalates adsorption from aqueous solution with hyper-cross-linked polymer resins. Information

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LANGUAGE: eng

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Grant and Affiliation Information for Application of the Polanyi potential theory to phthalates adsorption from aqueous solution with hyper-cross-linked polymer resins.

AFFILIATION: State Key Laboratory of Pollution Control and Resources Reuse, and School of the Environment, Nanjing University, Nanjing 210093, People's Republic of China.

Country: United States

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MEDLINETA: J Colloid Interface Sci

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