Sorption Enhancement of Aromatic Sulfonates onto an Aminated Hyper-Cross-Linked Polymer
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- 作者：Bingcai Pan ; Quanxing Zhang ; Fanwei Meng ; Xiaotiao Li ; Xiao Zhang ; Jianzhong Zheng ; Weiming Zhang ; Bingjun Pan ; and Jinlong Chen
- 刊名：Environmental Science & Technology
- 出版年：2005
- 出版时间：May 1, 2005
- 年：2005
- 卷：39
- 期：9
- 页码：3308 - 3313
- 全文大小：162K
- 年卷期：v.39,no.9(May 1, 2005)
- ISSN：1520-5851
文摘
A macroreticular resin adsorbent CHA-101 was aminatedby dimethylamine, and a novel sorbent named M-101 wasobtained. Several industrially important aromatic sulfonatesincluding sodium benzenesulfonate (BS), sodium p-toluenesulfonate (TS), and sodium 2-naphthalenesulfonate(NS) were selected as general solutes to evaluatethe performance of the newly synthesized resin particles.X-ray photoelectron spectroscope (XPS) analyses wasused to determine the protonation degree of amino groupat different solution pH, and the effect of pH on thesorption of these solutes onto M-101 can be explained bythe ion exchange mechanism. The experimentallyobserved sequence of the sorption capacity of the testedorganic sulfonates onto M-101 indicates that the 
-interaction between the solute molecule and the polymermatrix plays an important role in uptake of organicsulfonates from aqueous solution. Sodium sulfate wasselected as a typical competitive inorganic anion, andimproved selectivity of BS sorption over sulfate on M-101was observed by comparison with a common macroporousweak base anion exchanger D-301. In addition, both sorptionand desorption kinetics of M-101 were also found to befaster than that of D-301. Analyses of sorption isotherms andthermodynamics proved that BS sorption on M-101 wasan exothermic and more selective process than on D-301.Both column tests and field applications proved M-101to be an effective sorbent that can be used to removearomatic sulfonates from aqueous solution.
-interaction between the solute molecule and the polymermatrix plays an important role in uptake of organicsulfonates from aqueous solution. Sodium sulfate wasselected as a typical competitive inorganic anion, andimproved selectivity of BS sorption over sulfate on M-101was observed by comparison with a common macroporousweak base anion exchanger D-301. In addition, both sorptionand desorption kinetics of M-101 were also found to befaster than that of D-301. Analyses of sorption isotherms andthermodynamics proved that BS sorption on M-101 wasan exothermic and more selective process than on D-301.Both column tests and field applications proved M-101to be an effective sorbent that can be used to removearomatic sulfonates from aqueous solution.