Adsorption of CTAB on Zeolite A Detected by Surfactant Ion-selective Electrode

作者：Luo Y Y; Du Z P^*; Lu Y H; Liu B X

来源：Tenside Surfactants Detergents, 2009, 46(3): 175-178.

DOI：10.3139/113.110022

• Ion-selective electrode
• cationic surfactants
• zeolite A
• adsorption isotherm

Adsorption of cationic surfactant, cetyltrimethylammonium bromide (CTAB) on zeolite A has been investigated using surfactant-selective electrode technique. The electrode consisted of a polyvinyl chloride (PVC) membrane based on neutral ion-pair carrier complex of cetyltrimethylammonium tetra phenyl borate (CTA(+)TPB(-)). Adsorbance of CTAB on zeolite A was calculated from the potential and concentration response characteristics of the surfactant-selective electrode to get the surfactant adsorption isotherms. Adsorption isotherm of CTAB was S-shaped. The adsorbance was related to pH and electrolyte in the surfactant solutions.

• 出版日期2009-6
• 单位中国日用化学工业研究院