Adsorption of Different Surfactants on Kaolinite
نویسندگان
چکیده
منابع مشابه
Chromate Adsorption by Kaolinite
Chromate (CrO4 2-) adsorption was investigated on kaolinite (0.2-2 ~m) saturated with NaC104 over a range of pH. Adsorption increased with decreasing pH because of protonation of chromate and/ or variable charge sites on kaolinite. Chemical pretreatment to remove noncrystalline and crystalline oxide contaminants affected the magnitude ofCrO42adsorption, but not the pH range over which CrO42adso...
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-Sulfate adsorption on kaolinite was followed at 0.7 ~teq/ml to 99/~eq/ml solution concentrations at 30"C and at pH 6.0, and the amount of OHions released and the change in surface charge were determined. Sulfate was adsorbed at positive and neutral sites by displacing O H 2 and OHgroups, respectively. Adsorption of sulfate occurred predominantly at positive sites at low (0.7/~eq/ml to 0.9/~eq/...
متن کاملAdsorption of Quinoline to Kaolinite and Montmorillonite
Adsorption of quinoline (pKa 5 4.92) and background electrolyte (CaCl2) onto specimen kaolinite and montmorillonite were measured as a function of pH (3–7.5) and ionic strength (1–10 mM), and as a function of quinoline concentration (0.2–1.55 mM) at fixed pH values of maximum adsorption. Maximum sorption of quinoline occurred at pH 3.5–4.0 for kaolinite, and pH 3.0–5.0 for montmorillonite. At t...
متن کاملStudies on the Adsorption of p-Aminoazobenzene onto Kaolinite
As one of the most important soil components, kaolinite plays an important role in transport and fixation of organic pollutants in soils. P-Aminoazobenzene (PAAB) is a sort of the carcinogenic aromatic amine which is commonly used as the intermediates of azo dyes. It can cause mutations and cancer of aquatic biota as well as humans. In this study, adsorption of PAAB on kaolinite in aqueous solu...
متن کاملKaolinite particles as ice nuclei: learning from the use of different kaolinite samples and different coatings
Kaolinite particles from two different sources (Fluka and Clay Minerals Society (CMS)) were examined with respect to their ability to act as ice nuclei (IN). This was done in the water-subsaturated regime where often deposition ice nucleation is assumed to occur, and for watersupersaturated conditions, i.e., in the immersion freezing mode. Measurements were done using a flow tube (the Leipzig A...
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ژورنال
عنوان ژورنال: Adsorption Science & Technology
سال: 1997
ISSN: 0263-6174,2048-4038
DOI: 10.1177/026361749701500807