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Adsorption of Cetyltrimethylammonium Bromide on Zeolite Surface

机译:在沸石表面上吸附甲苯基三甲基溴化铵

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摘要

The adsorption of a cetyltrimethylammonium bromide (CTAB) cationic surfactant on a natural zeolite from an aqueous solution is studied for a wide range of concentrations. It is shown that a modified BET equation can be used for bimolecular adsorption. It is found that after the first few hours of adsorption from a premicellar solution, there is a lack of both cetyltrimethylammonium cations and bromide anions, due to their codiffusion to the ion-exchange sites. It is concluded that adsorption from a colloidal solution occurs via the adsorption of micelles, their subsequent degradation, and the formation of a bimolecular adsorption layer.
机译:研究了来自水溶液的天然沸石上的西甲基三甲基溴化铵(CTAB)阳离子表面活性剂的吸附,用于各种浓度。 结果表明,改进的下注方程可用于分散吸附。 结果发现,由于其缺乏其缺乏离子交换位点,在从预流溶液吸附的前几小时的吸附后,缺乏甲基三甲基氨基铵和溴化物阴离子。 得出结论,从胶体溶液的吸附通过胶束的吸附,其随后的降解和形成分散吸附层的形成发生。

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