Structure Analysis of Montmorillonite Intercalated with Cetylpyridinium and Cetyltrimethylammonium: Molecular Simulations and XRD Analysis

Pospı́šil, Miroslav; Čapková, Pavla; Měřínská, Dagmar; Maláč, Zdeněk; Šimoník, Josef

doi:10.1006/jcis.2000.7360

Cited by 69 publications

(45 citation statements)

References 23 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…The suspension of Na-bentonite (3.0 mass %) was treated with the CPC solution in a water/isopropyl alcohol (1 : 1) mixture. 29 The organobentonite solid was separated from water/isopropyl alcohol mixture by centrifugation and washed thoroughly with doubly distilled water followed by freeze-drying and grinding to 200 µm.…”

Section: Modification Of Resadiye Bentonitementioning

confidence: 99%

Adsorption of Reactive Red 120 from aqueous solutions by cetylpyridinium‐bentonite

Tabak

Baltaş

Afsin

et al. 2010

J of Chemical Tech & Biotech

View full text Add to dashboard Cite

show abstract

Section: Modification Of Resadiye Bentonitementioning

confidence: 99%

Adsorption of Reactive Red 120 from aqueous solutions by cetylpyridinium‐bentonite

Tabak

Baltaş

Afsin

et al. 2010

J of Chemical Tech & Biotech

View full text Add to dashboard Cite

show abstract

“…The stronger intercalation of CTA was predicted as well as confirmed experimentally. 39 Also in our recent work 40 we have found that the basal spacings d 001 of the MMT saturated with CTA exhibited the higher basal spacing (d 001 =1.75) than in the case of CP (d 001 =1.66).…”

Section: Adsorption Of the Cationic Surfactants On Montmorillonitementioning

confidence: 74%

“…38,39 Both CTA and CP were suggested to be arranged within interlamellar space in a liquid like disordered monolayer. The stronger intercalation of CTA was predicted as well as confirmed experimentally.…”

Section: Adsorption Of the Cationic Surfactants On Montmorillonitementioning

confidence: 99%

A physico-chemical study of the cationic surfactants adsorption on montmorillonite

Praus¹,

Turicová²

2007

J. Braz. Chem. Soc.

View full text Add to dashboard Cite

O objetivo deste trabalho é o estudo da adsorção de brometo de cetiltilmetilamônio (CTA) e de cloreto de cetilpiridínio (CP) em argilas do tipo montorilonita (MMT) ricas em sódio. Um método isotacoforético (ITP) específico foi desenvolvido visando à determinação rápida e simultânea dos surfatantes catiônicos (CS) adsorvidos. A fim de reduzir os limites de detecção, o método isotacoforético foi conjugado com a técnica de eletroforese capilar. Para determinar o arranjo dos surfatantes catiônicos (CS) adsorvidos na superfície das argilas foi efetuada a avaliação do balanço molar entre os surfatantes e os cátions metálicos juntamente com as isotermas de adsorção. A maior adsorção do CP comparada a do CTA pode ser entendida não só pela ação das forças eletrostáticas, mas também por outras interações, tais como, interação hidrofóbica cauda-cauda e/ou interações entre anéis piridínicos formando bicamadas incompletas e/ou monocamadas condensadas, respectivamente.The adsorption of cetyltrimethylammonium (CTA) bromide and cetylpyridinium (CP) chloride on Na + -rich montmorillonite (MMT) was studied. An ad hoc isotachophoretic (ITP) method was developed for the simultaneous and rapid determination of the cationic surfactants (CSs) adsorbed. In order to decrease the detection limits, ITP was on-line coupled with capillary zone electrophoresis. Adsorption data were analysed by their fitting with adsorption isotherms. The adsorption of CP is well described by the Langmuir isotherm. It indicates the monolayer arrangement of CP on the MMT surface. In case of the CTA data, the best fitting LangmuirFreundlich model with the power constant r<1 was found. It can be explained by the CTA interactions because of its intercalation into the MMT interlayer space.

show abstract

“…This way, a broader d-spacing as well as reduction of gravitational forces between the individual platelets of montmorillonite are reached. Consequently, this leads to the reduction of energy needed for the breakup of nanofiller into the individual nanoleaves in the polymeric matrix after the process of compounding 25 . The function of MMT nanoleaves in the polymer matrix can be observed from two points of view.…”

Section: Introductionmentioning

confidence: 99%

Barrier properties of PE, PP and EVA (nano)composites - The influence of filler type and concentration

Měřínská¹,

Kalendová²,

Alice³

2014

AIP Conference Proceedings

View full text Add to dashboard Cite

-Nanocomposite materials with layered clay used as nanofiller and polyethylene (PE), polypropylene (PP) and copolymer ethylene and vinyl acetate matrix (EVA, the content of VA component 19 wt. %) were prepared by compounding the individual components in Brabender kneader. The MMT Na+ and four types of commercial products such as Nanofil N 5 and N3000, Cloisite 93A and 30B were used as nanofillers. Next to the clays microprecipitated CaHCO 3, nanosilica and Halloysite tubes were used. The quantity of all the above-mentioned (nano)fillers was 1, 3 and 5 wt. % in relation to the content of montmorillonite. The aim was to evaluate the influence of (nano)filler type and concentration on nanocomposite barrier properties. The morphology of nanocomposite samples was examined by means of XRD analysis illustrated by transmission electronic microscopy TEM. Furthermore, permeability for O 2 and CO 2 were observed.

show abstract

Structure Analysis of Montmorillonite Intercalated with Cetylpyridinium and Cetyltrimethylammonium: Molecular Simulations and XRD Analysis

Cited by 69 publications

References 23 publications

Adsorption of Reactive Red 120 from aqueous solutions by cetylpyridinium‐bentonite

Adsorption of Reactive Red 120 from aqueous solutions by cetylpyridinium‐bentonite

A physico-chemical study of the cationic surfactants adsorption on montmorillonite

Barrier properties of PE, PP and EVA (nano)composites - The influence of filler type and concentration

Contact Info

Product

Resources

About