Effect of concentration and addition of ions on the adsorption of sodium dodecyl sulfate on stainless steel surface in aqueous solutions
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- 作者：Jun Zhang ; Yonggang Meng ; mengyg@tsinghua.edu.cn" class="auth_mail" title="E-mail the corresponding author ; Yu Tian ; Xiangjun Zhang
- 关键词：Sodium dodecyl sulfate ; Stainless steel ; Quartz crystal microbalance ; Atomic force microscope ; Adsorption ; Ionic strength
- 刊名：Colloids and Surfaces A: Physicochemical and Engineering Aspects
- 出版年：2015
- 出版时间：5 November 2015
- 年：2015
- 卷：484
- 期：Complete
- 页码：408-415
- 全文大小：1335 K
文摘
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The adsorption of SDS on stainless steel follows a four-stage adsorption isotherm.
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Adsorption isotherm shifts to lower SDS concentration regime with added NaClO4.
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Enhanced ionic strength decreses electrostatic repulsion between hemimicelles.
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The adsorption mechanism is clarified by hydrophobic and electrostatic interactions.
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