Obtaining electrostatically bound CdS - SiO2 aggregates from electrophoretic concentrates of CdS nanoparticles

Standard

Obtaining electrostatically bound CdS - SiO₂ aggregates from electrophoretic concentrates of CdS nanoparticles. / Bulavchenko, A. I.; Sap'yanik, A. A.; Demidova, M. G. et al.

In: Russian Journal of Physical Chemistry A, Vol. 89, No. 5, 01.05.2015, p. 828-834.

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

Harvard

Bulavchenko, AI, Sap'yanik, AA, Demidova, MG, Rakhmanova, MI & Popovetskii, PS 2015, 'Obtaining electrostatically bound CdS - SiO₂ aggregates from electrophoretic concentrates of CdS nanoparticles', Russian Journal of Physical Chemistry A, vol. 89, no. 5, pp. 828-834. https://doi.org/10.1134/S0036024415050106

APA

Bulavchenko, A. I., Sap'yanik, A. A., Demidova, M. G., Rakhmanova, M. I., & Popovetskii, P. S. (2015). Obtaining electrostatically bound CdS - SiO₂ aggregates from electrophoretic concentrates of CdS nanoparticles. Russian Journal of Physical Chemistry A, 89(5), 828-834. https://doi.org/10.1134/S0036024415050106

Vancouver

Bulavchenko AI, Sap'yanik AA, Demidova MG, Rakhmanova MI, Popovetskii PS. Obtaining electrostatically bound CdS - SiO₂ aggregates from electrophoretic concentrates of CdS nanoparticles. Russian Journal of Physical Chemistry A. 2015 May 1;89(5):828-834. doi: 10.1134/S0036024415050106

Author

Bulavchenko, A. I. ; Sap'yanik, A. A. ; Demidova, M. G. et al. / Obtaining electrostatically bound CdS - SiO₂ aggregates from electrophoretic concentrates of CdS nanoparticles. In: Russian Journal of Physical Chemistry A. 2015 ; Vol. 89, No. 5. pp. 828-834.

BibTeX

@article{ca2cc71ac323477bb24f1f4bae8bd98d,

title = "Obtaining electrostatically bound CdS - SiO2 aggregates from electrophoretic concentrates of CdS nanoparticles",

abstract = "Nonaqueous electrophoresis reveals that the electrokinetic potential of CdS nanoparticles increases slightly (85 - 120 mV) along with the concentration (0-5 × 10-3 M) of sodium bis(2-ethylhexyl) sulfosuccinate (AOT) in n-decane, while negatively charged SiO2 particles acquire positive charge (switching from -75 up to +135 mV). The energies of interparticle interactions in CdS - CdS and CdS - SiO2 systems are calculated from these parameters and the literature values of the Hamaker constants according to the Deryaguin - Landau - Verwey - Overbeek (DLVO) theory. It is concluded that the presence of a minimum (2.5 kBT) on the potential dependences of the CdS-SiO2 system indicates the formation of CdS-SiO2 aggregates electrostatically bound by heterocoagulation at low concentrations of AOT. The luminescent properties of the obtained ultrafine CdS-SiO2 powders depend on the CdS content.",

keywords = "cadmium sulfide, DLVO theory, electrophoretic concentration, heterocoagulation, luminescence, nanoparticles",

author = "Bulavchenko, {A. I.} and Sap'yanik, {A. A.} and Demidova, {M. G.} and Rakhmanova, {M. I.} and Popovetskii, {P. S.}",

year = "2015",

month = may,

day = "1",

doi = "10.1134/S0036024415050106",

language = "English",

volume = "89",

pages = "828--834",

journal = "Russian Journal of Physical Chemistry A",

issn = "0036-0244",

publisher = "PLEIADES PUBLISHING INC",

number = "5",

}

RIS

TY - JOUR

T1 - Obtaining electrostatically bound CdS - SiO2 aggregates from electrophoretic concentrates of CdS nanoparticles

AU - Bulavchenko, A. I.

AU - Sap'yanik, A. A.

AU - Demidova, M. G.

AU - Rakhmanova, M. I.

AU - Popovetskii, P. S.

PY - 2015/5/1

Y1 - 2015/5/1

N2 - Nonaqueous electrophoresis reveals that the electrokinetic potential of CdS nanoparticles increases slightly (85 - 120 mV) along with the concentration (0-5 × 10-3 M) of sodium bis(2-ethylhexyl) sulfosuccinate (AOT) in n-decane, while negatively charged SiO2 particles acquire positive charge (switching from -75 up to +135 mV). The energies of interparticle interactions in CdS - CdS and CdS - SiO2 systems are calculated from these parameters and the literature values of the Hamaker constants according to the Deryaguin - Landau - Verwey - Overbeek (DLVO) theory. It is concluded that the presence of a minimum (2.5 kBT) on the potential dependences of the CdS-SiO2 system indicates the formation of CdS-SiO2 aggregates electrostatically bound by heterocoagulation at low concentrations of AOT. The luminescent properties of the obtained ultrafine CdS-SiO2 powders depend on the CdS content.

AB - Nonaqueous electrophoresis reveals that the electrokinetic potential of CdS nanoparticles increases slightly (85 - 120 mV) along with the concentration (0-5 × 10-3 M) of sodium bis(2-ethylhexyl) sulfosuccinate (AOT) in n-decane, while negatively charged SiO2 particles acquire positive charge (switching from -75 up to +135 mV). The energies of interparticle interactions in CdS - CdS and CdS - SiO2 systems are calculated from these parameters and the literature values of the Hamaker constants according to the Deryaguin - Landau - Verwey - Overbeek (DLVO) theory. It is concluded that the presence of a minimum (2.5 kBT) on the potential dependences of the CdS-SiO2 system indicates the formation of CdS-SiO2 aggregates electrostatically bound by heterocoagulation at low concentrations of AOT. The luminescent properties of the obtained ultrafine CdS-SiO2 powders depend on the CdS content.

KW - cadmium sulfide

KW - DLVO theory

KW - electrophoretic concentration

KW - heterocoagulation

KW - luminescence

KW - nanoparticles

UR - http://www.scopus.com/inward/record.url?scp=84928562991&partnerID=8YFLogxK

U2 - 10.1134/S0036024415050106

DO - 10.1134/S0036024415050106

M3 - Article

AN - SCOPUS:84928562991

VL - 89

SP - 828

EP - 834

JO - Russian Journal of Physical Chemistry A

JF - Russian Journal of Physical Chemistry A

SN - 0036-0244

IS - 5

ER -

ID: 26144249