Adsorption Isotherm of Sodium Octylbenzenesulfonate on Iron Oxide Particles in Aqueous Solutions

Thermodynamic parameters and counterion binding to the micelle in binary anionic surfactant systems

“…The surface tensions of the pure NaDS, NaOBS and NaDeS systems are already well characterized in the literature [16][17][18]. The surface tension measurement was performed by a Krüss (K10ST model) tensiometer equipped with a platinum plate.…”

Adsorption Isotherms of Cetylpyridinium Chloride with Iron III Salts at Air/Water and Silica/Water Interfaces

“…Also it is known that the surfactants properties at air/water and solid/water interfaces present some similarities (20), which may be helpful for the understanding of the more complicated solid/water interface. For example, the comparison between the surface areas at each interface has been used for the discussion of surfactant surface coverage in structural terms, as the surface area at the air/water interface at the cmc is admittedly of the monolayer type.…”

Adsorption of Ionic Surfactants on Solid Particles Determined by Zeta-Potential Measurements: Competitive Binding of Counterions

“…Likewise, with the help of Eqs. [8], [9], [11], and [13] one can express the Langmuir isotherm in Table 1 for i = 2 in the form…”

“…Various techniques have been applied to measure the depletion effect: colorimetric titration methods (1)(2)(3)(4), static (5)(6)(7) and dynamic (8) surface-tension experiments, UV spectroscopy (9)(10)(11), fluorescence (12), and high-pressure liquid chromatography (13) [see also studies cited in Ref. (2)].…”

“…Consequently, to determine the surfactant adsorption one has also to measure the area of the solid-liquid interface per unit mass of the particles; the latter can be achieved by means of the BET-N 2 desorption method (9,11), dynamic light scattering (6,7), or electron microscopy (13).…”