Enhanced sorption of perfluorooctane sulfonate and Cr(VI) on organo montmorillonite: influence of solution pH and uptake mechanism

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	Enhanced sorption of perfluorooctane sulfonate and Cr(VI) on organo montmorillonite: influence of solution pH and uptake mechanism
	Zhou, Qin
刊名	ADSORPTION-JOURNAL OF THE INTERNATIONAL ADSORPTION SOCIETY
	2013
卷号	19 期号:2 页码:709-715
通讯作者	Pan, G
中文摘要	An effective sorbent to remove the perfluorooctane sulfonate (PFOS) and hexavalent chromium (Cr(VI)) simultaneously from simulating plating wastewater was prepared in this study. The removal of Cr was pH-dependent. However, PFOS removal on organo-montmorillonites (Mts) was not sensitive to pH changes. The presence of micelles and hemi-micelles resulted in an enhanced PFOS sorption capacity which reached 1,000 mg/g on the hexadecyltrimethylammonium bromide (HDTMAB) modified montmorillonite. The cationic surfactants on organo-Mts were largely responsible to the hydrophobic partition. For Cr(VI), the stable coordination compounds between amido, sulfhydryl groups and HCrO4 (-) were beneficial to its sorption on AET-Mt and AET-HDTMAB-Mt (AET, 2-aminoethanethiol hydrochloride). The result indicated that the AET-HDTMAB-Mt was highly effective for removing both PFOS and Cr(VI) simultaneously, and their sorption capacities reached 890 and 14 mg/g respectively.
收录类别	SCI
WOS记录号	WOS:000317620800055
公开日期	2014-06-06
内容类型	期刊论文
源URL	[http://ir.rcees.ac.cn/handle/311016/7410]
专题	生态环境研究中心_环境水质学国家重点实验室
推荐引用方式 GB/T 7714	Zhou, Qin. Enhanced sorption of perfluorooctane sulfonate and Cr(VI) on organo montmorillonite: influence of solution pH and uptake mechanism[J]. ADSORPTION-JOURNAL OF THE INTERNATIONAL ADSORPTION SOCIETY,2013,19(2):709-715.
APA	Zhou, Qin.(2013).Enhanced sorption of perfluorooctane sulfonate and Cr(VI) on organo montmorillonite: influence of solution pH and uptake mechanism.ADSORPTION-JOURNAL OF THE INTERNATIONAL ADSORPTION SOCIETY,19(2),709-715.
MLA	Zhou, Qin."Enhanced sorption of perfluorooctane sulfonate and Cr(VI) on organo montmorillonite: influence of solution pH and uptake mechanism".ADSORPTION-JOURNAL OF THE INTERNATIONAL ADSORPTION SOCIETY 19.2(2013):709-715.