Sorption and immersional wetting on clay minerals having modified surface. I. Surface properties of nonswelling clay mineral organocomplexes

Interaction of Cationic Surfactants with Iron and Sodium Montmorillonite Suspensions

“…Calorimetric Adsorption of cationic surfactants on clay minerals has measurements have also been applied to surfactant-exbeen a subject of special interest to scientists and engineers changed clay minerals in nonaqueous (21,(27)(28)(29)(30) and aquebecause of their extensive applications in such fields as oil ous systems (31). A combination of the above three investirecovery, soil chemistry, and environmental issues.…”

Microcalorimetric Control of Liquid Sorption on Hydrophilic/Hydrophobic Surfaces in Nonaqueous Dispersions

“…Several papers on the liquid sorption properties of the hydrophobic clay minerals were published at our institute in Hungary [35][36][37][67][68][69][70][71][72][73][74][75][76][77][78][79]. The stability and structure building of these suspensions vary over a wide range, depending on the surface properties of disperse particles and the polarity of solvents.…”

“…15. In this way the changes in specific surface caused by disaggregation need not be separately monitored, because our data always refer to enthalpy changes accompanying the sorption of molar amounts of the adsorbed material [62,78,79]. The majority of heat evolution is due to preferential adsorption of methanol (see Fig.…”

The Effect of Cadmium Ion Adsorption on the Growth of CdS Nanoparticles at Colloidal Silica Particle Interfaces in Binary Liquids

“…These polar adsorption layers functioned as nanoreactors in which CdS and ZnS nanopar-Cadmium ion adsorption on A200 and R972 silica partiticles had been generated in situ (6)(7)(8)(9). Optimization of cles was determined in x 1 Å 0.05, 0.10, 0.20, and 0.40 ethasemiconductor nanoparticle (10)(11)(12)(13)(14)(15)(16)(17)(18)(19) formation requires nol (1) -cyclohexane (2) mixtures (3,4). Silica particles quantitative information on the partitioning of their precur-(typically 0.5 g) were allowed to equilibrate with a given 50 mL of liquid, at 25ЊC, which contained the desired cadmium acetate ion concentration (c 0 Å 0-5 mmol/dm 3 , prepared to give the appropriate concentrations).…”

“…onto the SiO 2 particle surfaces, i.e., c e É 0. Increasing the Immersion wetting enthalpies in methanol were deteramounts of ethanol in the ethanol-cyclohexane liquid mixmined with a microcalorimeter (LKB 2107) at 298 { 0.01 K (4,9). Methanol was dried over molecular sieves (Merck , TABLE 1 0.4 mm) prior to use.…”