太阳成8722(中国)有限公司-GREEN NO.1

标题：Solubilization and adsorption behaviors of 2,4,6-trichlorophenol in the presence of surfactants作者：Zeng, Qinghui; Peng, Sha; Liu, Min; Song, Zijian; Wang, Xiankai; Zhang,Xu; Hong, Song

来源出版物：CHEMICAL ENGINEERING JOURNAL 卷：230 页：202-209 DOI：10.1016/j.cej.2013.06.058 出版年：AUG 15 2013

摘要：The solubilization of 2,4,6-trichlorophenol (2,4,6-TCP) was studied in the presence of four different surfactants, namely sodium deoxycholate (NaDC), sodium cholate (NaC), sodium lauryl sulfate (SDS) and beta-cyclodextrin (beta-CD). The solubility of 2,4,6-TCP was enhanced a maximum of 72 times especially by NaDC at pH 7.5. In addition, other than great solubilization capacities, NaDC and NaC have the advantages of high biodegradability and biocompatibility as biosurfactants. The adsorption behaviors of 2,4,6-TCP on the surface of soil in the presence of these solubilizers were examined. The results showed that the adsorption isotherms for all studied surfactants matched the Henry adsorption isotherm well. The adsorption mechanisms were explored and the adsorption behaviors of 2,4,6-TCP were affected by different micelle forms of the surfactants based on their critical micelle concentration (CMC). The adsorption process was demonstrated by a redistribution procedure between surfactants in solution and surfactants adsorbed onto the soil surface. In particular, the adsorption of 2,4,6-TCP was almost zero when NaC concentration was above CMC2.The results of our study have important implications for soil remediation and non-point source pollution control.

入藏号：WOS:000324663100025

文献类型：Article

语种：English

作者关键词：Solubilization, Adsorption, Surfactant, Sodium deoxycholate, 2,4,6-Trichlorophenol, Soil remediation

扩展关键词：POLYCYCLIC AROMATIC-HYDROCARBONS; CRITICAL MICELLE CONCENTRATION; NONIONIC SURFACTANT; ORGANIC-COMPOUNDS; ENHANCED REMEDIATION; MIXED SURFACTANTS; BETA-CYCLODEXTRIN; CONTAMINATED SOIL; WATER; PHENANTHRENE

通讯作者地址：Hong, Song; Wuhan Univ, Sch Resource & Environm Sci, Wuhan 430079, Peoples R China.

电子邮件地址：songhongpku@126.com

地址：

[Zeng, Qinghui; Peng, Sha; Liu, Min; Song, Zijian; Wang, Xiankai; Zhang, Xu; Hong, Song]Wuhan Univ, Sch Resource & Environm Sci, Wuhan 430079, Peoples R China.

[Zeng, Qinghui] Chinese Acad Sci, Res Ctr Ecoenvironm Sci, Beijing 100085, Peoples R China.

研究方向：Engineering

ISSN：1385-8947