Emulsion Synthesis and Electrophoretic Concentration of Gold Nanoparticles in Sodium Bis(2-Ethylhexyl) Sulfosuccinate Solution in n-Decane

Shaparenko, Nikita O.; Арымбаева, А. Т.; Демидова, М. Г.; Plyusnin, P. E.; Kolodin, A. N.; Максимовский, Е. А.; Korolkov, Ilya V.; Булавченко, А. И.

doi:10.1134/s1061933x1904015x

Cited by 13 publications

(4 citation statements)

References 21 publications

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“…Concentration limitations can be overcome by synthesizing NPs in emulsions, where the ratio V s /V о ~ 9 can be achieved [44,45]. We tested the synthesis of ZnO 2 NPs in emulsions using four different surfactants: Brij 30, Tergitol NP 4, Span 80, and AOT.…”

Section: Resultsmentioning

confidence: 99%

Zinc Peroxide Nanoparticles: Micellar Synthesis and Preparation of Films

Татарчук

Громилов

Максимовский

et al. 2021

Russ. J. Inorg. Chem.

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ZnO 2 nanoparticles (NPs) have been studied, which, due to their semiconducting and oxidizing properties, are promising for the development of new materials for optoelectronics, photocatalysis, sensorics, biomedicine, and theranostics. The synthesis of ZnO 2 NPs in dispersed systems based on lipophilic surfactants has been tested. The possibility of simple synthesis of ZnO 2 NPs ~5 nm in size by the reaction of Zn (CH 3 COO) 2 and H 2 O 2 in reverse micelles and emulsions of surfactants Brij 30, Span 80, and AOT has been shown. It has been found that the type of dispersed system and the nature of surfactants of the studied series have no strong effect on the size of NPs. The powder of ZnO 2 NPs exhibits photoluminescence with an emission maximum at 520 nm; upon heating, it decomposes to ZnO with the release of oxygen and an exotherm with a maximum at 213°C. Using organosols of ZnO 2 NPs and their mixtures with Au NPs, films were obtained on glass and polyethylene terephthalate substrates, as well as ZnO films by heating the ZnO 2 films. The ZnO 2 and ZnO films have a granular morphology, the composite ZnO 2 and Au films have an island morphology based on spheroidal agglomerates of Au NPs with inclusions of ZnO 2 nanocrystals.

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Section: Resultsmentioning

confidence: 99%

Zinc Peroxide Nanoparticles: Micellar Synthesis and Preparation of Films

Татарчук

Громилов

Максимовский

et al. 2021

Russ. J. Inorg. Chem.

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“…Electrokinetic potential ( ζ ‐potential) of nanoparticles was measured on the same instrument by laser electrophoresis using the option of Phase Analysis Light Scattering (PALS) in a cell. These methods are described in detail in our earlier publications (Shaparenko et al, 2019; Shaparenko et al, 2021). The effective hydrodynamic diameter d hz was calculated for spherical particles by the Stokes–Einstein equation:

d_{hz} goodbreak= \frac{k_{B} T}{3 italicπηD},

where k B is the Boltzmann constant, T, the temperature, η, the dynamic viscosity of water, and D, the diffusion coefficient.…”

Section: Methodsmentioning

confidence: 99%

The effect of surfactants on electrokinetic potential of tracer particles and borosilicate glass revealed within the development of SZP technique

Podlipskaya,

Shaparenko,

Bulavchenko

2024

J Surfact & Detergents

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The surface zeta potential (SZP) technique is a promising method for investigating the electrokinetic properties of various macroscopic surfaces. However, there have been no attempts as yet to use the SZP technique in the presence of surfactants. In this work, we studied the effect of classical low‐molecular surfactants (SDS, АОТ, Triton X‐100, and CTAB) on the properties of tracer particles with different size: commercial polystyrene (PSN, 27.2 ± 0.1 nm), “blue” colloidal (BI‐ZR5, 191 ± 1 nm), and hydrophilic SiO2 particles (520 ± 12 nm) obtained by quartz evaporation under the action of a relativistic electron beam. The initial charge of all the particles was negative. Anionic surfactants (АОТ and SDS) exerted virtually no effect on ζ‐potential up to the concentration of 10−3 M and decreased it by ca. 27% at the concentration of 10−2 M. Nonionic oxyethylated Triton X‐100 increased ζ‐potential but did not recharge the particles. Cationic CTAB recharged the surface of all the particles already at the concentration of 10−5 M; at 10−2 M ζ‐potential reached 39–65 mV. The possibility of applying BI‐ZR5 as the tracer particles to estimate the electrokinetic potential of the borosilicate glass substrate in the presence of CTAB was demonstrated.

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“…The procedures for obtaining the sols of silver and gold nanoparticles, as well as their concentrates, were described in detail in Ref. [21,22]. The solutions of silver and gold nanoparticles for sorption were prepared by diluting the dried concentrates with pure chloroform or solutions containing 2.5 × 10 –4 ÷ 2.5 × 10 –1 mol/L AOT in chloroform.…”

Section: Methodsmentioning

confidence: 99%

Electrophoretic mobility and stability of SiO₂ nanoparticles in the solutions of AOT in n‐hexadecane‐chloroform mixtures

2021

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Electrophoretic mobility of SiO2 nanoparticles in a n‐hexadecane‐chloroform mixture depending on AOT concentration and chloroform content was determined. It was shown that an increase in chloroform content and a decrease in AOT concentration cause a growth in electrophoretic mobility. The use of the values of Debye lengths (characteristic thickness) of the diffuse part of the electric double layer (EDL) that were determined previously allowed us to calculate the electrokinetic potential and to evaluate the stability of organosols. The obtained data were in good correlation with the dynamics of temporal changes of hydrodynamic radius and the intensity of light scattering. Organosols may be used for heteroaggregation (sorption) of Au and Ag nanoparticles on SiO2.

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Emulsion Synthesis and Electrophoretic Concentration of Gold Nanoparticles in Sodium Bis(2-Ethylhexyl) Sulfosuccinate Solution in n-Decane

Cited by 13 publications

References 21 publications

Zinc Peroxide Nanoparticles: Micellar Synthesis and Preparation of Films

Zinc Peroxide Nanoparticles: Micellar Synthesis and Preparation of Films

The effect of surfactants on electrokinetic potential of tracer particles and borosilicate glass revealed within the development of SZP technique

Electrophoretic mobility and stability of SiO₂ nanoparticles in the solutions of AOT in n‐hexadecane‐chloroform mixtures

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Emulsion Synthesis and Electrophoretic Concentration of Gold Nanoparticles in Sodium Bis(2-Ethylhexyl) Sulfosuccinate Solution in n-Decane

Cited by 13 publications

References 21 publications

Zinc Peroxide Nanoparticles: Micellar Synthesis and Preparation of Films

Zinc Peroxide Nanoparticles: Micellar Synthesis and Preparation of Films

The effect of surfactants on electrokinetic potential of tracer particles and borosilicate glass revealed within the development of SZP technique

Electrophoretic mobility and stability of SiO2 nanoparticles in the solutions of AOT in n‐hexadecane‐chloroform mixtures

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Product

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Electrophoretic mobility and stability of SiO₂ nanoparticles in the solutions of AOT in n‐hexadecane‐chloroform mixtures