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	Selective sorption of perfluorooctane sulfonate on molecularly imprinted polymer adsorbents
	Deng, Shubo ; Shuai, Danmeng ; Yu, Qiang ; Huang, Jun ; Yu, Gang
	2010-10-12 ; 2010-10-12
关键词	perfluorooctane sulfonate (PFOS) molecularly imprinted polymer (MIP) adsorbents selective sorption electrostatic interaction PERFLUORINATED SURFACTANTS WASTE-WATER PERFLUOROALKYL SURFACTANTS REVERSE-OSMOSIS FATE DECOMPOSITION MEMBRANES SEDIMENTS REMOVAL IRON Engineering, Environmental Environmental Sciences
中文摘要	Perfluorooctane sulfonate (PFOS), as a potential persistent organic pollutant, has been widely detected in water environments, and has become a great concern in recent years. PFOS is very stable and difficult to decompose using conventional techniques. Sorption may be an attractive method to remove it from water. In this study, the molecularly imprinted polymer (MIP) adsorbents were prepared through the polymerization of 4-vinylpyridine under different preparation conditions in order to remove perfluorooctane sulfonate (PFOS) from water. The MIP adsorbents using perfluorooctanoic acid (PFOA) as the template had good imprinting effects and could selectively remove PFOS from aqueous solution. The sorption behaviors including sorption kinetics, isotherms, and effect of pH, salt, and competitive anions were investigated. Experimental results showed that the sorption of PFOS on the MIP adsorbents was very fast, pH-dependent, and highly selective. The achieved fast sorption equilibrium within 1 h was attributed to the surface sorption on the. ne adsorbents. The sorption isotherms showed that the sorption selectivity of PFOS on the MIP adsorbents decreased at high PFOS concentrations, which may be due to the double-layer sorption and the formation of PFOS micelles on the sorbent surface. The sorption of PFOS on the MIP adsorbents was mainly dominated by the electrostatic interaction between the protonated vinylpyridine on the adsorbent surface and the anionic PFOS. The prepared MIP adsorbents can potentially be applied in water and wastewater treatment for selective removal of PFOS.
语种	英语 ; 英语
出版者	HIGHER EDUCATION PRESS ; BEIJING ; SHATANHOU ST 55, BEIJING 100009, PEOPLES R CHINA
内容类型	期刊论文
源URL	[http://hdl.handle.net/123456789/79804]
专题	清华大学
推荐引用方式 GB/T 7714	Deng, Shubo,Shuai, Danmeng,Yu, Qiang,et al. Selective sorption of perfluorooctane sulfonate on molecularly imprinted polymer adsorbents[J],2010, 2010.
APA	Deng, Shubo,Shuai, Danmeng,Yu, Qiang,Huang, Jun,&Yu, Gang.(2010).Selective sorption of perfluorooctane sulfonate on molecularly imprinted polymer adsorbents..
MLA	Deng, Shubo,et al."Selective sorption of perfluorooctane sulfonate on molecularly imprinted polymer adsorbents".(2010).

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