Free energy of interaction of sodium dodecyl sulfate in aqueous solution with carbon black surfaces

被引:11
|
作者
González-García, CM
González-Martín, ML [1 ]
Gallardo-Moreno, AM
Gómez-Serrano, V
Labajos-Broncano, L
Bruque, JM
机构
[1] Univ Extremadura, Dept Ingn Quim & Energet, E-06071 Badajoz, Spain
[2] Univ Extremadura, Dept Fis, E-06071 Badajoz, Spain
[3] Univ Extremadura, Dept Quim Inorgan, E-06071 Badajoz, Spain
关键词
interfacial free energy; Langmuir equation; adsorption; surfactant; carbon blacks;
D O I
10.1006/jcis.2001.8173
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
The free energy of the adsorption process of an ionic surfactant from aqueous solutions onto a set of carbon blacks in the range of low concentrations was evaluated using the model proposed by van Oss and co-workers. The obtained results indicated that the free energy of interaction between adsorbent and adsorbate through water results mainly from Lifshitz-van der Waals and electrostatic interactions, and its value showed a good correspondence with that previously found from a combination of the classical measurements of adsorption isotherms and the Langmuir model. (C) 2002 Elsevier Science (USA).
引用
收藏
页码:13 / 18
页数:6
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