2017
DOI: 10.1016/j.colsurfa.2017.01.038
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Change of organobentonite interlayer microstructure induced by sorption of aromatic and petroleum hydrocarbons—A combined study of laboratory characterization and molecular dynamics simulations

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Cited by 19 publications
(13 citation statements)
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“…However, the present study indicates that the d 001 basal spacing of the organoclays increases significantly after sorption of BPA, and shows that BPA molecules enter the interlayers of the investigated organoclays. This increase in the d 001 basal spacing is similar to the results obtained by Ghavami et al on naphthalene and petroleum hydrocarbons sorption on C 16 -montmorillonite and organo-bentonites [ 20 ] and 2-chloroaniline sorption on dimethyl ditallowylammonium modified clays [ 21 ]. The insertion of the BPA molecules into the organoclays interlayers causes a rearrangement of the intercalated surfactants which raise in the same way as found at increased surfactant loading [ 25 ].…”
Section: Resultssupporting
confidence: 88%
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“…However, the present study indicates that the d 001 basal spacing of the organoclays increases significantly after sorption of BPA, and shows that BPA molecules enter the interlayers of the investigated organoclays. This increase in the d 001 basal spacing is similar to the results obtained by Ghavami et al on naphthalene and petroleum hydrocarbons sorption on C 16 -montmorillonite and organo-bentonites [ 20 ] and 2-chloroaniline sorption on dimethyl ditallowylammonium modified clays [ 21 ]. The insertion of the BPA molecules into the organoclays interlayers causes a rearrangement of the intercalated surfactants which raise in the same way as found at increased surfactant loading [ 25 ].…”
Section: Resultssupporting
confidence: 88%
“…The surfactant molecule orientation in the interlayer is strongly dependent on the degree of loading with the alkyl chains oriented parallel with the sheets at low loading, but the long alkyl chains are rising with increasing loading to be standing almost perpendicular to the sheets at high loading levels [ 25 , 32 ]. Ghavami et al reported an increase of 2 Å in the d 001 basal spacing of C 16 -montmorillonite after naphthalene sorption and this indicated that naphthalene molecules penetrated and remained in the C 16 -montmorillonite interlayers [ 20 ]. This result supports the fact that naphthalene sorption occurs mostly in the organoclays interlayer and the authors assumed that the sorption is driven by the short-range forces between sorbates and surfactant sorbents [ 20 ].…”
Section: Resultsmentioning
confidence: 99%
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“…However, using long alkyl ammonium cations, the modified cetyltrimethylammonium-magadiite was used as an intermediate precursor to synthesize mesoporous materials with a controlled distribution of pores sizes [ 17 , 18 ]. In the removal of dyes process, it was underlined that the removal efficiency of organo-clay minerals was affected by the surfactant alkyl chain length [ 19 , 20 , 21 , 22 ]. A clay mineral modified with a long-chain surfactant exhibited a higher removal capacity than did short-chain surfactant.…”
Section: Introductionmentioning
confidence: 99%