Surfactants, its applications and effects on environment

Shah, Sujit Kumar; Bhattarai, Ajaya; Chatterjee, S K

doi:10.3126/bibechana.v7i0.4047

Cited by 12 publications

(11 citation statements)

References 4 publications

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“…Surfactants (Surface Active Agent) also called amphiphilic compounds or tensides due to their specific structure and utility properties (foaming, wetting, softening, antistatic, caking, emulsifying, adsorptive, solubilizing, thermal and chemical stability) are widely used in industry, washing, laundry, cosmetics, pharmaceuticals, textiles, microelectronics, paints, polymers, as well as in food and paper industry, etc. (Atayi et al 2002;Kowalska 2009;Shah et al 2011). The surfactant molecule consists of the non-polar -hydrophobic part (hates water, loves oil) which is usually a long hydrocarbon chain and the polar-hydrophilic part (loves water, hates oil) (Fig.…”

Section: Introductionmentioning

confidence: 99%

Static sorption of heavy metal ions on ion exchanger in the presence of sodium dodecylbenzenesulfonate

2019

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The effect of sodium dodecylbenzenesulfonate (anionic surfactant) on removal of selected heavy metal ions such as copper(II), cobalt(II), zinc(II) and nickel(II) using Lewatit MonoPlus TP 220 were studied. The critical micellization of concentration in the system containing both heavy metal ions and the anionic surfactant was obtained (surface properties). The percentage removal of heavy metal ions in the system without the anionic surfactant was compared with that of heavy metal ions in the presence of the anionic surfactant of the concentration below (↓CMC) and above (↑CMC) (HCl-heavy metal ions-anionic surfactant systems). Moreover, Lewatit MonoPlus TP 220 was applied for the heavy metal ions removal from real wastewaters (used a pickling bath) originating from leaching of the heat-resistant nickel and cobalt alloys. The critical micellization of concentration values depends on the composition of solution, presence of hydrochloric acid and heavy metal ions. The presence of the surfactant improves slightly the removal efficiency of cobalt(II) and nickel(II) ions and deteriorates the zinc(II) removal efficiency. Lewatit MonoPlus TP 220 shows high affinity for copper(II) in the model and real wastewater solutions in the case of the systems without and with the anionic surfactant.

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Section: Introductionmentioning

confidence: 99%

Static sorption of heavy metal ions on ion exchanger in the presence of sodium dodecylbenzenesulfonate

2019

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“…The result showed that critical micelle concentration increased with addition of methanol and with rise of temperature and decreased with addition of sodium bromide. Shah et al [11] measured the specific conductivity of solutions of cetyltrimethylammonium bromide in absence and in the presence of potassium chloride in methanol-water mixed solvent media containing 0.10, 0.20, 0.30 and 0.40 volume fractions of methanol at 308.15, 318.15 and 323.15 K. The conductance of cetyltrimethylammonium bromide decreased with addition of methanol. It was observed that the conductance of cetyltrimethylammonium bromide increased with increase in concentration as well as with addition of salt (KCl).…”

Section: Electrical Conductivitymentioning

confidence: 99%

Investigation on solution properties of surfactants in mixed solvent media: Landmark towards Surface Chemistry in Eastern Nepal

Bhattarai

2014

BIBECHANA

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Surfactants are amphiphilic molecules having a hydrophilic or water soluble moiety (head group) and a hydrophobic, or water insoluble moiety (tail group). Surfactants are not only related to soaps and detergents, they are also in heavy demand for industrial processes requiring colloid stability, metal treatments, mineral flotation, pesticides, oil production, pharmaceutical formulation, emulsion polymerization, particle growth and many more. That is why surfactants have been and continue to be a very active area of scientific research and commercial growth for several decades. One interesting property of surfactants is that at low concentrations, they exist solely as monomers. The formation of micelles, begins at a specific surfactant concentration termed the critical micelle concentration (cmc), where the physical properties of the solution, such as interfacial tension, electrical conductivity, and light scattering behaviour, often changes abruptly due to the existence of micelles. The formation of micelles will be able to calculate various thermodynamic parameters. These parameters make surfactants not only an interesting and rich area for the exploration of novel phenomena but also an area of research which can lead to new applications in a variety of fields. However, most of the previous studies on surfactants are limited to aqueous media only. Studies in mixed solvent media are very natural one as one can modulate the conformations of surfactants and their interactions easily by simply varying the composition of the media. With this concept, the research team of Eastern Nepal has started to work the solution properties of surfactants in different mixed solvent media in presence and absence of salts and has also investigated cationic and anionic surfactant interaction in mixed solvent media. DOI: http://dx.doi.org/10.3126/bibechana.v11i0.10400 BIBECHANA 11(1) (2014) 175-180

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“…2 Side effects caused by the surfactants have long been a focus of concern and the application of the surfactants may lead to a series of environmental problems such as water pollution. 3 Therefore, it is particularly necessary to analyze the content of one kind of surfactants for the purpose of the quality assurance of commercial products and for environmental pollution control. Although many methods have been described for the determination of various surfactants in the daily use, there are few methods reported on the detection of surfactants in ooding systems.…”

Section: Introductionmentioning

confidence: 99%

Determination of alkylamine carbonate nonionic–anion oil displacement agent in oil-field water using HPLC after derivatization with 4-methoxybenzenesulfonyl fluoride

et al. 2013

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In this study, a method for the determination of alkylamine carbonate (AAC) nonionic-anion oil displacement agent in oilfield water was developed for the first time, involving pre-column derivatization using a novel labeling agent and HPLC with diode-array detection. The derivatization and chromatographic separation conditions were investigated thoroughly. The analyte was labeled with 4methoxybenzenesulfonyl fluoride at 50 C for 20 min. When the method was applied in the determination of C18A5C (an AAC oil displacement agent containing eighteen alkyl and five amino groups) a linear calibration curve was obtained from 1.0 to 100.0 mg mL À1 with a correlation coefficient of more than 0.999 and a detection limit of 0.05 mg mL À1. In the determination of real oilfield water samples, the recovery range of C18A5C was 91.8% to 96.2%, and the intra-day and inter-day relative standard deviations were 2.9-3.5% and 3.8-4.3%, respectively. The experimental results demonstrate that this method, with its merits of simplicity in pretreatment, rapidity in derivatization, and stability of the derivatives, can be employed in the analysis of C18A5C and has potential application in the detection of other oil displacement surfactants containing amino groups. It is of great significance to develop a fast, easy-to-operate, sensitive and reliable method for environmental impact assessment. Fig. 1 Structure of alkylamine carbonate (AAC) oil displacement agent.

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Surfactants, its applications and effects on environment

Cited by 12 publications

References 4 publications

Static sorption of heavy metal ions on ion exchanger in the presence of sodium dodecylbenzenesulfonate

Static sorption of heavy metal ions on ion exchanger in the presence of sodium dodecylbenzenesulfonate

Investigation on solution properties of surfactants in mixed solvent media: Landmark towards Surface Chemistry in Eastern Nepal

Determination of alkylamine carbonate nonionic–anion oil displacement agent in oil-field water using HPLC after derivatization with 4-methoxybenzenesulfonyl fluoride

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