The effect of mixed surfactants of sodium dodecyl sulfate and Triton X-100 on the base hydrolysis of Malachite green

Soriyan, Oladega; Owoyomi, Olanrewaju; Bamgbose, J. T.

doi:10.1007/s11144-009-0070-9

Cited by 6 publications

(4 citation statements)

References 14 publications

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“…[14] Kinetic investigations in mixed surfactant systems have drawn considerable attention as evident from recent reports on the studies of reaction rates in presence of mixed micelles. [10,[15][16][17] In this article, the influence of TX-100 on the CTAB catalyzed reaction between methyl violet carbocation (MV þ ) and OH À ion was investigated. The kinetic data were analyzed by applying Piszkiewicz model of positive cooperativity.…”

Section: Introductionmentioning

confidence: 99%

Influence of Nonionic Surfactant on Alkaline Hydrolysis of Methyl Violet Catalyzed by Cetyltrimethylammonium Bromide

Singh

Srivastava

2012

Journal of Dispersion Science and Technology

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Section: Introductionmentioning

confidence: 99%

Influence of Nonionic Surfactant on Alkaline Hydrolysis of Methyl Violet Catalyzed by Cetyltrimethylammonium Bromide

Singh

Srivastava

2012

Journal of Dispersion Science and Technology

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“…The explanation of this fact is connected with the synergistic effect of the surfactant mixtures on the adsorption of guar gum. It is known that the synergetic effect involves the increase of adsorptive, foaming and rewetting properties of surfactant mixtures in comparison to pure surfactant solutions (Wang and Kwak 1999;Reif and Somasundaran 1999;Soriyan et al 2009). As mentioned earlier, the interactions between TX-100 and GG are small, but the presence of another ionic surfactant causes the increase of these interactions.…”

Section: Resultsmentioning

confidence: 99%

Stability of manganese dioxide by guar gum in the absence or presence of surfactants

Grządka

2014

Cellulose

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Stability of the manganese dioxide (MnO 2 ) suspensions by non-ionic guar gum (GG) in the absence or presence of the surfactants: anionic sodium dodecyl sulphate (SDS), cationic hexadecyltrimethylammonium bromide (CTAB) and non-ionic Triton X-100 (t-octylphenoxypolyethoxyethanol) and their equimolar mixtures (SDS/TX-100; CTAB/TX-100) was measured using turbidity. The obtained results of the manganese dioxide suspensions stability were discussed together with the adsorption data and with the data concerning the thicknesses of the adsorption layers. In order to gain more information about the structure of the electric double layer surface charge density and the zeta potential measurements were performed. The obtained results show that the addition of guar gum to the MnO 2 suspensions increases MnO 2 stability. The larger this increase is, the higher is the concentration of the polymer (concentration range 10-200 ppm). Moreover, the addition of single surfactants also causes the increase in the effectiveness of stabilizing the manganese dioxide suspensions. The reason for that is formation of multilayer complexes between the polymer and the surfactants. In such a system both the adsorption of polymer and the thickness of polymer adsorption layer increase. The greatest increase in the stability of MnO 2 /GG suspensions was provided by the mixture of anionic and nonionic surfactants due to a strong synergistic effect. Also, mixing the polymer and two surfactants reduces the stability of the suspension.

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“…3 and 4 allows to conclude that the presence of surfactant SDS/TX-100 and CTAB/TX-100 mixtures causes the largest increase of the adsorption amount of GG. The reason for that is the fact that the mixtures of ionic and nonionic surfactants exhibit synergetic effect (Wang and Kwak 1999;Reif and Somasundaran 1999;Soriyan et al 2009) resulting in the increase of adsorptive, foaming and rewetting properties of surfactant mixtures in comparison to pure surfactant solutions. As was said above the interactions between non-ionic surfactant and GG are small, but he presence of another surfactant, the ionic one causes the increase of these interactions.…”

Section: Resultsmentioning

confidence: 99%

Influence of surfactants on the adsorption and elektrokinetic properties of the system: guar gum/manganese dioxide

Grządka

2013

Cellulose

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The adsorption of non-ionic polysaccharide-guar gum (GG) in the presence or absence of the surfactants: anionic SDS, cationic CTAB, nonionic TX-100 and their equimolar mixtures SDS/ TX-100, CTAB/TX-100 from the electrolyte solutions (NaCl, CaCl 2 ) on the manganese dioxide surface (MnO 2 ) was studied. The increase of GG adsorption amount in the presence of surfactants was observed in every measured system. This increase results from formation of complexes between the GG and the surfactant molecules. This observation was confirmed by the determination of the influence of GG on surfactants adsorption on the MnO 2 surface. The increase of GG adsorption on MnO 2 was the largest in the presence of the surfactant mixtures (CTAB/TX-100; SDS/TX-100) which is the evidence of the synergetic effect. The smallest amounts of adsorption were obtained in the presence of TX-100, which results from non-ionic character of this surface active agent. In the case of single surfactant solution CTAB has the best efficiency in increasing the amount of GG adsorption on MnO 2 which results from strong interactions with GG and also with the negatively charged surface of the adsorbent. In order to determine the electrokinetic properties of the system, the surface charge density of MnO 2 and the zeta potential measurements were performed in the presence of the GG macromolecules and the above mentioned surfactants and their mixtures. The obtained data showed that the adsorption of GG or GG/surfactants complexes on the manganese dioxide surface strongly influences the diffused part of the electrical double layer (EDL)-MnO 2 /electrolyte solution, but has no influence on the compact part of the electric double layer. This is the evidence that the polymers chains are directly bonded with the surface of the solid and the surfactants molecules are present in the upper part of the EDL.

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The effect of mixed surfactants of sodium dodecyl sulfate and Triton X-100 on the base hydrolysis of Malachite green

Cited by 6 publications

References 14 publications

Influence of Nonionic Surfactant on Alkaline Hydrolysis of Methyl Violet Catalyzed by Cetyltrimethylammonium Bromide

Influence of Nonionic Surfactant on Alkaline Hydrolysis of Methyl Violet Catalyzed by Cetyltrimethylammonium Bromide

Stability of manganese dioxide by guar gum in the absence or presence of surfactants

Influence of surfactants on the adsorption and elektrokinetic properties of the system: guar gum/manganese dioxide

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