Cosolubilization of 4,4′-dibromodiphenyl ether, naphthalene and pyrene mixtures in various surfactant micelles

Yang, Xingjian; Lu, Guining; Liang, Xujun; Yin, Rui; Guo, Chuling; Yi, Xiaoyun; Dang, Zhi

doi:10.1016/j.cej.2014.08.101

Cited by 43 publications

(15 citation statements)

References 45 publications

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“…To compare the mutual effects of solutes in co-solubilization systems, the deviation ratio of MSR (R ∆MSR ) can be used to evaluate the effects of synergistic (R ∆MSR > 0) or inhibitory (R ∆MSR < 0), which can be expressed by [32,33]:…”

Section: Resultsmentioning

confidence: 99%

“…However, in cationic surfactant CTAB micelles, it does not follow the same rule due to the electrostatic interaction between the π-electrons of PAHs and the positive ion heads of CTAB. Naphthalene and Pyr compete to interact with the positive charges along with the co-solubilization, resulting the change of their original interaction modes in single states [33]. nonionic Brij series or Tween 80 and anionic SDBS micelles [33].…”

Section: Solubilization Sitesmentioning

confidence: 99%

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The Total Solubility of the Co-Solubilized PAHs with Similar Structures Indicated by NMR Chemical Shift

Chen

et al. 2021

Molecules

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The synergism/inhibition level, solubilization sites and the total solubility (St) of co-solubilization systems of phenanthrene, anthracene and pyrene in Tween 80 and sodium dodecyl sulfate (SDS) are studied by 1H-NMR, 2D nuclear overhauser effect spectroscopy (NOESY) and rotating frame overhauser effect spectroscopy (ROESY). In Tween 80, inhibition for phenanthrene, anthracene and pyrene is observed in most binary and ternary systems. However, in SDS, synergism is predominant. After analysis, we find that different synergism or inhibition situation between Tween 80 and SDS is related to the different types of surfactants used and the resulting different co-solubilization mechanisms. In addition, we also find that three polycyclic aromatic hydrocarbons.

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Section: Resultsmentioning

confidence: 99%

Section: Solubilization Sitesmentioning

confidence: 99%

The Total Solubility of the Co-Solubilized PAHs with Similar Structures Indicated by NMR Chemical Shift

Chen

et al. 2021

Molecules

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“…Solubilized organic molecules can be located in three regions of the micelles formed by the ionic surfactants, namely, the micellar core, palisade layer, and micelle surface (Takeuchi et al, ; Yang et al, ). We determined the location of the benzoic acid and aniline derivatives in the SDS micelles by measuring the chemical shifts of the SDS protons using 1 H NMR spectroscopy.…”

Section: Resultsmentioning

confidence: 99%

Removal of Organic Compounds Containing a Benzene Ring from Water by Adsorptive Micellar Flocculation

Wang

Tian

et al. 2018

J Surfact & Detergents

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The removal of low‐molecular‐weight benzoic acid (benzoic acid, p‐toluic acid, and salicylic acid)‐derived and aniline (aniline, 4‐chloroaniline, and 2,6‐dimethylaniline)‐derived organic compounds through adsorptive micellar flocculation (AMF) with anionic surfactants (sodium dodecyl sulfate, SDS) and aluminum sulfate was demonstrated. The interactions between SDS and the organic compounds were studied using 1H nuclear magnetic resonance (NMR) spectroscopy. Batch AMF experiments were conducted to study the influence of several factors on target pollutant removal. For benzoic acid derivatives, the removal rate was improved by increasing the SDS and Al concentrations, while increases in the concentrations of the organic pollutant tended to decrease the removal rate. The highest removal efficiencies were observed with p‐toluic acid (95.4%) > salicylic acid (84.5%) > benzoic acid (76.5%) under weakly acidic conditions due to the greater hydrophobicity of p‐toluic acid and the complexation of the Al salts and the salicylic acid. The removal rates of the aniline derivatives were positively related to the SDS concentration and negatively related to the pH. At a pH of 3.0, the highest removal rates of aniline, 4‐chloroaniline, and 2,6‐dimethylaniline (91.3%, 98.0%, and 97.6%, respectively) were observed. For aniline compounds, charge neutralization between the SDS anions and aniline cations dominated the removal process. These findings provide new insights for the development of further applications of AMF for the removal of benzoic acid and aniline derivatives.

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“…Nevertheless, PAHs exist in mixtures of many compounds at real contaminated sites. Previous reports and our recent published work demonstrated that, when cosolubilized in micellar solutions, PAH mixtures exhibit synergistic, inhibitive and negligible effects on mutual solubility compared to single solute solubilization systems (Guha et al, 1998;Bernardez and Ghoshal, 2004;Masrat et al, 2013;Liang et al, 2014;Yang et al, 2015). To date, however, there are limited reports on how the cosolubilization phenomena in aqueous phase affect the codesorption of solute mixtures from soil during the surfactantenhanced remediation process.…”

Section: Introductionmentioning

confidence: 87%

Cosolubilization synergism occurrence in codesorption of PAH mixtures during surfactant-enhanced remediation of contaminated soil

et al. 2016

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Cosolubilization of 4,4′-dibromodiphenyl ether, naphthalene and pyrene mixtures in various surfactant micelles

Cited by 43 publications

References 45 publications

The Total Solubility of the Co-Solubilized PAHs with Similar Structures Indicated by NMR Chemical Shift

The Total Solubility of the Co-Solubilized PAHs with Similar Structures Indicated by NMR Chemical Shift

Removal of Organic Compounds Containing a Benzene Ring from Water by Adsorptive Micellar Flocculation

Cosolubilization synergism occurrence in codesorption of PAH mixtures during surfactant-enhanced remediation of contaminated soil

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