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Effects of Iron Oxidation State and Organic Cations on Dioctahedral Smectite Hydration
Alkylammonium Ferric Iron Ferrous Iron HDTMA Hydrophilic Surface Hydrophobic Surface Interlayer Cation Oxidation Reduction Surface Hydration Swelling TMA TMPA
2011/12/6
Abstract: Reduction of structural Fe in Na-exchanged dioctahedral smectites decreases swellability in water, but because clay interlayers also collapse in the process the concomitant effect on surface...
Sorption of Benzene, Toluene, Ethylbenzene, and Xylene (BTEX) Compounds by Hectorite Clays Exchanged with Aromatic Organic Cations
Adsorptive Organoclays Aromatic Cations BTEX Hectorite Natural Clays Organophilic Organoclays Smectite Sorption Unleaded Gasoline X-Ray
2011/12/7
Abstract: Adsorptive-type organoclays, where hydrocarbons adsorb directly to the siloxane surfaces, were studied to find new organic cations and to determine the parameters that produce effective sorb...
Adsorption of Monovalent Organic Cations on Sepiolite: Experimental Results and Model Calculations
Adsorption Model Crystal Violet Methylene Blue Sepiolite
2011/12/8
Abstract: Adsorption of neutral organic molecules and the monovalent organic cations methylene blue (MB) and crystal violet (CV) to sepiolite was determined experimentally and investigated by an adsor...
Model for Competitive Adsorption of Organic Cations on Clays
Adsorption Clay-organic Methylene blue Montmorillonite Organic cation Thioflavin T
2012/1/9
The adsorption on montmorillonite of two monovalent organic cations, methylene blue (MB) and thioflavin T (TFT), was studied in four different situations: (1) separate adsorption of MB or TFT; (2) com...
Interactions of Some Large Organic Cations with Bentonite in Dilute Aqueous Systems
Adsorption Bentonite Herbicide Organocations Smectite
2012/2/8
Adsorption studies indicate that paraquat, diquat, and thionine are bound on bentonite by amounts greater than the measured cation-exchange capacity (CEC) of the clay. Methylene blue, new methylene bl...