ADSORPTION OF TRACE HYDROPHOBIC COMPOUNDS FROM WATER ON SURFACTANT-COATED ALUMINA

被引:64
作者
VALSARAJ, KT
机构
[1] Department of Chemical Engineering, Louisiana State University, Baton Rouge, Louisiana
关键词
D O I
10.1080/01496399208029228
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
The adsorption of several hydrophobic organic compounds (HOCs) from water on alumina coated by sodium dodecylsulfate surfactant "hemimicelles" is discussed. This provides a convenient way of concentrating them on a metal oxide solid support such as alumina. Alumina can be subsequently regenerated with a minimum effort such as a change of pH of the aqueous solution. Adsorption studies showed that the partition constants of HOCs with hemimicelles of sodium dodecylsulfate on alumina is linearly related to their octanol-water partition constants. Surfactant-coated alumina was a better adsorption surface for HOCs than natural soils.
引用
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页码:1633 / 1642
页数:10
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