Weakly Ordered Nanostructured Silver Disilicate and Its Colloidal Solutions: Preparation and Properties
- Авторы: Baidakova M.1, Germanov N.2, Golyandin S.1,2, Kompan M.1, Mochalov S.2, Nashchekin A.1, Nevedomskii V.1,3, Pul’nev S.2, Rabchinskii M.1, Ulin V.1, Ulin N.1
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Учреждения:
- Ioffe Institute
- OOO Nanometall
- St. Petersburg Electrotechnical University
- Выпуск: Том 64, № 6 (2019)
- Страницы: 884-892
- Раздел: Physics of Nanostructures
- URL: https://journals.rcsi.science/1063-7842/article/view/203635
- DOI: https://doi.org/10.1134/S1063784219060033
- ID: 203635
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Аннотация
It was shown that the interaction of silver cations in alkaline aqueous solutions with various kinds of silicates, regardless of their chemical and aggregation state, leads to the formation of an exclusively disilicate form of silver salt. We develop procedures for synthesis of nanostructured weakly ordered nonstoichiometric silver disilicate Ag6 –xHxSi2O7 capable of forming aqueous colloids. We study the micellular structure of colloidal particles in these solutions and demonstrate that permeability of silicic acid layers enveloping nanosized salt cores of these micelles depends on pH. Colloidal silver disilicate is found to exhibit a high catalytic activity in photoinduced oxidation of a broad spectrum of different compounds, which is demonstrated for compounds stable in aqueous solutions such as some organic dies and ferrocyanide complex ([Fe(CN\()_{6}^{{ - 4}}\)).
Об авторах
M. Baidakova
Ioffe Institute
Автор, ответственный за переписку.
Email: baidakova@mail.ioffe.ru
Россия, St. Petersburg, 194021
N. Germanov
OOO Nanometall
Email: baidakova@mail.ioffe.ru
Россия, St. Petersburg, 194100
S. Golyandin
Ioffe Institute; OOO Nanometall
Email: baidakova@mail.ioffe.ru
Россия, St. Petersburg, 194021; St. Petersburg, 194100
M. Kompan
Ioffe Institute
Email: baidakova@mail.ioffe.ru
Россия, St. Petersburg, 194021
S. Mochalov
OOO Nanometall
Email: baidakova@mail.ioffe.ru
Россия, St. Petersburg, 194100
A. Nashchekin
Ioffe Institute
Email: baidakova@mail.ioffe.ru
Россия, St. Petersburg, 194021
V. Nevedomskii
Ioffe Institute; St. Petersburg Electrotechnical University
Email: baidakova@mail.ioffe.ru
Россия, St. Petersburg, 194021; St. Petersburg, 197101
S. Pul’nev
OOO Nanometall
Email: baidakova@mail.ioffe.ru
Россия, St. Petersburg, 194100
M. Rabchinskii
Ioffe Institute
Email: baidakova@mail.ioffe.ru
Россия, St. Petersburg, 194021
V. Ulin
Ioffe Institute
Email: baidakova@mail.ioffe.ru
Россия, St. Petersburg, 194021
N. Ulin
Ioffe Institute
Email: baidakova@mail.ioffe.ru
Россия, St. Petersburg, 194021