Research output: Contribution to journal › Article › peer-review
Electrokinetic Properties of Vitreous Mesoporous Membranes Doped with Silver Iodide. / Ермакова, Людмила Эдуардовна; Кузнецова, Анастасия Сергеевна; Гирсова, Марина Андреевна; Куриленко, Людмила Николаевна; Антропова, Татьяна Викторовна.
In: Glass Physics and Chemistry, Vol. 48, No. 4, 08.2022, p. 248-265.Research output: Contribution to journal › Article › peer-review
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TY - JOUR
T1 - Electrokinetic Properties of Vitreous Mesoporous Membranes Doped with Silver Iodide
AU - Ермакова, Людмила Эдуардовна
AU - Кузнецова, Анастасия Сергеевна
AU - Гирсова, Марина Андреевна
AU - Куриленко, Людмила Николаевна
AU - Антропова, Татьяна Викторовна
N1 - Publisher Copyright: © 2022, Pleiades Publishing, Ltd.
PY - 2022/8
Y1 - 2022/8
N2 - Abstract: High-silica mesoporous (pore radii 1.5–1.6 nm, MIP and pore radii 18.4–25.2 nm, MAP) vitreous AgI-doped membranes of the Vycor type have been manufactured. Characterization of the mesoporous glass morphology carried out by scanning electron microscopy (SEM). Successful synthesis of AgI-doped mesoporous glasses was confirmed by X-ray fluorescence (XRF) spectroscopy and energy-dispersive X-ray (EDX) spectroscopy. For the first time a comprehensive study of structural characteristics and electrokinetic properties (surface conductivity, streaming potential) of the AgI-doped MIP and MAP glasses in NaNO 3, KNO 3 and AgNO 3 solutions in the concentration range 0.1–0.0001 M have been performed. The electrokinetic potential (ζ-potential) was found by the streaming potential method taking into account the surface conductivity and the electric double layers (EDL) overlap. The results were compared with the ζ-potential calculated from the electrophoretic mobility of the particles (laser Doppler velocimetry). It has been established that the structure of EDL in membrane nanopores and on the open surface of the AgI-doped porous particle differ significantly—different signs of the streaming potentials (negative) and electrophoretic mobility (positive) were observed for the AgI-doped glasses in AgNO 3 solution.
AB - Abstract: High-silica mesoporous (pore radii 1.5–1.6 nm, MIP and pore radii 18.4–25.2 nm, MAP) vitreous AgI-doped membranes of the Vycor type have been manufactured. Characterization of the mesoporous glass morphology carried out by scanning electron microscopy (SEM). Successful synthesis of AgI-doped mesoporous glasses was confirmed by X-ray fluorescence (XRF) spectroscopy and energy-dispersive X-ray (EDX) spectroscopy. For the first time a comprehensive study of structural characteristics and electrokinetic properties (surface conductivity, streaming potential) of the AgI-doped MIP and MAP glasses in NaNO 3, KNO 3 and AgNO 3 solutions in the concentration range 0.1–0.0001 M have been performed. The electrokinetic potential (ζ-potential) was found by the streaming potential method taking into account the surface conductivity and the electric double layers (EDL) overlap. The results were compared with the ζ-potential calculated from the electrophoretic mobility of the particles (laser Doppler velocimetry). It has been established that the structure of EDL in membrane nanopores and on the open surface of the AgI-doped porous particle differ significantly—different signs of the streaming potentials (negative) and electrophoretic mobility (positive) were observed for the AgI-doped glasses in AgNO 3 solution.
KW - electrical double layer
KW - nanoporous glass
KW - silver iodide
KW - surface conductivity
KW - zeta potential
UR - http://www.scopus.com/inward/record.url?scp=85135441481&partnerID=8YFLogxK
UR - https://www.mendeley.com/catalogue/a6e1fde5-eb88-3398-b00c-22e43d3fd50f/
U2 - 10.1134/s1087659622040071
DO - 10.1134/s1087659622040071
M3 - Article
VL - 48
SP - 248
EP - 265
JO - Glass Physics and Chemistry
JF - Glass Physics and Chemistry
SN - 1087-6596
IS - 4
ER -
ID: 99549962