Equilibrium studies of the uptake of aromatic compounds from an aqueous solution by montmorillonite modified with tetraphenylphosphonium and amyltriphenylphosphonium

Tomohito Kameda; Shuko Shimamori; Toshiaki Yoshioka

doi:10.1016/j.jallcom.2014.11.093

Equilibrium studies of the uptake of aromatic compounds from an aqueous solution by montmorillonite modified with tetraphenylphosphonium and amyltriphenylphosphonium

Tomohito Kameda, Shuko Shimamori, Toshiaki Yoshioka

Research output: Contribution to journal › Article › peer-review

1 Citation (Scopus)

Abstract

Montmorillonite (MMT) modified with tetraphenylphosphonium (TPP·MMT) and amyltriphenylphosphonium (AmylTPP·MMT) was shown to adsorb 1,2-dimethoxybenzene (DMB) and 1,3-dinitrobenzene (DNB) from an aqueous solution. The adsorption of DMB could be expressed by Langmuir-type adsorption isotherms. The adsorption of DMB by TPP·MMT and AmylTPP·MMT was spontaneous because the ΔG values in both cases were negative. The uptake of DMB by TPP·MMT and AmylTPP·MMT could be considered a physical adsorption process caused by π-π stacking interactions, because the ΔG values were in the range of -20 to 0 kJ mol^-1. The uptake of DNB by TPP·MMT was expressed by the Halsey and Henderson models, which explained the multilayer adsorption.

Original language	English
Pages (from-to)	8-12
Number of pages	5
Journal	Journal of Alloys and Compounds
Volume	625
DOIs	https://doi.org/10.1016/j.jallcom.2014.11.093
Publication status	Published - 2015 Mar 15

Keywords

Equilibrium analyses
Montmorillonite
Mutual interactions of π electrons
Stacking interactions

ASJC Scopus subject areas

Mechanics of Materials
Mechanical Engineering
Metals and Alloys
Materials Chemistry

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10.1016/j.jallcom.2014.11.093

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title = "Equilibrium studies of the uptake of aromatic compounds from an aqueous solution by montmorillonite modified with tetraphenylphosphonium and amyltriphenylphosphonium",

abstract = "Montmorillonite (MMT) modified with tetraphenylphosphonium (TPP·MMT) and amyltriphenylphosphonium (AmylTPP·MMT) was shown to adsorb 1,2-dimethoxybenzene (DMB) and 1,3-dinitrobenzene (DNB) from an aqueous solution. The adsorption of DMB could be expressed by Langmuir-type adsorption isotherms. The adsorption of DMB by TPP·MMT and AmylTPP·MMT was spontaneous because the ΔG values in both cases were negative. The uptake of DMB by TPP·MMT and AmylTPP·MMT could be considered a physical adsorption process caused by π-π stacking interactions, because the ΔG values were in the range of -20 to 0 kJ mol-1. The uptake of DNB by TPP·MMT was expressed by the Halsey and Henderson models, which explained the multilayer adsorption.",

keywords = "Equilibrium analyses, Montmorillonite, Mutual interactions of π electrons, Stacking interactions",

author = "Tomohito Kameda and Shuko Shimamori and Toshiaki Yoshioka",

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doi = "10.1016/j.jallcom.2014.11.093",

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T1 - Equilibrium studies of the uptake of aromatic compounds from an aqueous solution by montmorillonite modified with tetraphenylphosphonium and amyltriphenylphosphonium

AU - Kameda, Tomohito

AU - Shimamori, Shuko

AU - Yoshioka, Toshiaki

PY - 2015/3/15

Y1 - 2015/3/15

N2 - Montmorillonite (MMT) modified with tetraphenylphosphonium (TPP·MMT) and amyltriphenylphosphonium (AmylTPP·MMT) was shown to adsorb 1,2-dimethoxybenzene (DMB) and 1,3-dinitrobenzene (DNB) from an aqueous solution. The adsorption of DMB could be expressed by Langmuir-type adsorption isotherms. The adsorption of DMB by TPP·MMT and AmylTPP·MMT was spontaneous because the ΔG values in both cases were negative. The uptake of DMB by TPP·MMT and AmylTPP·MMT could be considered a physical adsorption process caused by π-π stacking interactions, because the ΔG values were in the range of -20 to 0 kJ mol-1. The uptake of DNB by TPP·MMT was expressed by the Halsey and Henderson models, which explained the multilayer adsorption.

AB - Montmorillonite (MMT) modified with tetraphenylphosphonium (TPP·MMT) and amyltriphenylphosphonium (AmylTPP·MMT) was shown to adsorb 1,2-dimethoxybenzene (DMB) and 1,3-dinitrobenzene (DNB) from an aqueous solution. The adsorption of DMB could be expressed by Langmuir-type adsorption isotherms. The adsorption of DMB by TPP·MMT and AmylTPP·MMT was spontaneous because the ΔG values in both cases were negative. The uptake of DMB by TPP·MMT and AmylTPP·MMT could be considered a physical adsorption process caused by π-π stacking interactions, because the ΔG values were in the range of -20 to 0 kJ mol-1. The uptake of DNB by TPP·MMT was expressed by the Halsey and Henderson models, which explained the multilayer adsorption.

KW - Equilibrium analyses

KW - Montmorillonite

KW - Mutual interactions of π electrons

KW - Stacking interactions

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JO - Journal of Alloys and Compounds

JF - Journal of Alloys and Compounds

SN - 0925-8388

ER -

Equilibrium studies of the uptake of aromatic compounds from an aqueous solution by montmorillonite modified with tetraphenylphosphonium and amyltriphenylphosphonium

Abstract

Keywords

ASJC Scopus subject areas

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