The characterisation and use of polycation-exchanged bentonites

The interaction of polymers with clays is considered with particular emphasis on the adsorption of polycations of the type [CH2CHOHCH2N(CH3)(2)](n)(n+) onto a low iron Texas bentonite, Westone-L (WL). The influence of clay type, particle size and resident cation on the amount of adsorbed polycation is reported along with variable temperature X-ray diffraction of the resulting complexes. The information obtained from Cs+- and Na+-WL suspensions using Cs-133 and Na-23 solution phase NMR is summarised and used to show that this technique can provide quantitative information regarding the displacement of Cs+-ions from the exchange sites by polycation in suspension and reflect subtle in situ changes intimated from Zeta potential measurements. The use of polycation-exchanged clays as scavengers of p-nitrophenol from water is described as is the significant activity of acid-treated polycation-exchanged clays for the catalytic isomersion of alpha-pinene to camphene and limonene. (C) 1999 Published by Elsevier Science B.V. All rights reserved.

[1]  J. M. Adams.  Particle Size and Shape Effects in Materials Science: Examples from Polymer and Paper Systems , 1993, Clay Minerals.

[2]  David E. Fogarty,et al.  Sample cell for high-precision temperature-dependence NMR experiments , 1992 .

[3]  S. Boyd,et al.  Role of Layer Charge in Organic Contaminant Sorption by Organo-Clays , 1994 .

[4]  A. Tomlinson,et al.  PLS VERSUS ZEOLITES AS SORBENTS AND CATALYSTS II. TERPENE CONVERSIONS IN ALUMINA-PILLARED CLAYS AND PHOSPHATES AND MEDIUM PORE ZEOLITES , 1995 .

[5]  J. Bottero,et al.  Adsorption of nonionic polyacrylamide on sodium montmorillonite: Relation between adsorption, ξ potential, turbidity, enthalpy of adsorption data and 13C-NMR in aqueous solution , 1988 .

[6]  P. Komadel,et al.  Characterisation of moderately acid-treated, size-fractionated montmorillonites using IR and MAS NMR spectroscopy and thermal analysis , 1995 .

[7]  T. Stutzmann,et al.  Contribution to the Adsorption Mechanism of Acetamide and Polyacrylamide on to Clays , 1977 .

[8]  B. Theng,et al.  Clay-Polymer Interactions: Summary and Perspectives , 1982 .

[9]  Leif Eriksson,et al.  Particle flocculation by adsorbing polymers , 1991 .

[10]  F. Lafuma,et al.  Flocculation and adsorption properties of cationic polyelectrolytes toward Na-montmorillonite dilute suspensions , 1987 .

[11]  J. Lee,et al.  Adsorption of Benzene, Toluene, and Xylene by Two Tetramethylammonium-Smectites Having Different Charge Densities , 1990 .

[12]  P. Komadel,et al.  Characterization and catalytic activity of acid-treated, size-fractionated smectites , 1997 .

[13]  B. Mann,et al.  Adsorption of polycations on clays: an in situ study using 133Cs solution-phase NMR , 1996 .

[14]  C. Breen,et al.  Influence of layer charge on the catalytic activity of mildly acid-activated tetramethylammonium-exchanged bentonites , 1999 .

[15]  L. Wågberg,et al.  Adsorption kinetics for cationic polyelectrolytes onto pulp fibers in turbulent flow , 1989 .

[16]  I. Shainberg,et al.  Electrophoretic mobility of montmorillonite particles saturated with Na/Ca ions , 1970 .

[17]  M. Costa,et al.  Catalysis of gas and liquid phase ionic and radical rearrangements of α- and β-pinene by metal(IV) phosphate polymers , 1996 .

[18]  P. Claesson,et al.  Forces between polyelectrolyte-coated surfaces: relations between surface interaction and floc properties , 1994 .

[19]  R. Ratcliffe,et al.  A 31P NMR study of the adsorption of bovine serum albumin on montmorillonite using phosphate and the paramagnetic cation Mn2+: modification of conformation with pH , 1992 .

[20]  D. Greenland,et al.  The Adsorption of Poly(Ethylene Glycols) on Clay Minerals , 1970, Clay Minerals.

[21]  A. Audibert,et al.  Effect of Clay/Polymer Interactions on Shale Stabilization during Drilling , 1994 .

[22]  S. Boyd,et al.  Cationic Surfactant Adsorption by Swelling and Nonswelling Layer Silicates , 1995 .

[23]  E. Pefferkorn,et al.  Polyelectrolyte Deposition Induced by Ion Complexation: Structural and Electrochemical Characteristics of the Polymeric Interface , 1995 .

[24]  E. Killmann,et al.  Microcalorimetric studies of the adsorption of N-ethylpyrrolidone, oligomeric and polymeric vinylpyrrolidone from CHCl3 on silica , 1985 .

[25]  B. Mann,et al.  In situ 133Cs and 1H solution-phase NMR, thermoanalytical and X-ray diffraction studies of the adsorption of polyalkyleneglycol on Texas bentonite , 1998 .

[26]  P. Komadel,et al.  Acid-activated organoclays: Preparation, characterization and catalytic activity of acid-treated tetraalkylammonium-exchanged smectites , 1997 .

[27]  J. Billingham,et al.  Adsorption of polyamine, polyacrylic acid and polyethylene glycol on montmorillonite: An in situ study using ATR-FTIR , 1997 .

[28]  J. Lee,et al.  Shape-selective adsorption of aromatic molecules from water by tetramethylammonium-smectite , 1989 .

[29]  B. Sawhney.  Sorption and Desorption of Organic Contaminants by Clays and Soils , 1996 .

[30]  B. Gu,et al.  The Interaction of Polysaccharides with Silver Hill Illite , 1992 .

[31]  Billingham,et al.  Adsorption of Polycations on Clays: A Comparative in situ Study Using 133Cs and 23Na Solution Phase NMR , 1997, Journal of colloid and interface science.

[32]  E. Pefferkorn,et al.  Effect of soluble aluminum ions on polyelectrolyte-alumina interaction. Kinetics of polymer adsorption and colloid stabilization , 1995 .

[33]  D. Greenland.  Adsorption of polyvinyl alcohols by montmorillonite , 1963 .

[34]  Breen,et al.  Polycation-Exchanged Clays as Sorbents for Organic Pollutants: Influence of Layer Charge on Pollutant Sorption Capacity. , 1998, Journal of colloid and interface science.

[35]  J. Argillier,et al.  Adsorption of Hydrophobically Associating Polyacrylamides on Clay , 1998 .

[36]  J. V. Vogel.  Gravity drainage vital factor for understanding steam floods , 1992 .

[37]  E. Matijević,et al.  Colloid and surface properties of clay suspensions , 1975 .

[38]  R. Audebert,et al.  Flocculation properties of some water-soluble cationic copolymers toward silica suspensions: A semiquantitative interpretation of the role of molecular weight and cationicity through a “patchwork” model , 1984 .

[39]  Christopher Breen,et al.  Acid-activated organoclays: preparation, characterisation and catalytic activity of polycation-treated bentonites , 1998 .

[40]  P. Espinasse,et al.  Acetamide and Polyacrylamide Adsorption Onto Clays: Influence of the Exchangeable Cation and the Salinity of the Medium , 1979 .

[41]  S. Boyd,et al.  Hydrophobicity of Siloxane Surfaces in Smectites as Revealed by Aromatic Hydrocarbon Adsorption from Water , 1991 .

[42]  F. Lafuma,et al.  Adsorption of cationic polyelectrolytes onto montmorillonite and silica: Microcalorimetric study of their conformation , 1990 .

[43]  John Gregory,et al.  Rates of flocculation of latex particles by cationic polymers , 1973 .

[44]  P. Komadel,et al.  Correlation of catalytic activity with infra-red, 29Si MAS NMR and acidity data for HCl-treated fine fractions of montmorillonites , 1995 .

[45]  Susumu Harada,et al.  Adsorption of cationic polysulfone on bentonite , 1968 .