Weakly Ordered Nanostructured Silver Disilicate and Its Colloidal Solutions: Preparation and Properties
- Авторлар: 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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Мекемелер:
- Ioffe Institute
- OOO Nanometall
- St. Petersburg Electrotechnical University
- Шығарылым: Том 64, № 6 (2019)
- Беттер: 884-892
- Бөлім: Physics of Nanostructures
- URL: https://journals.rcsi.science/1063-7842/article/view/203635
- DOI: https://doi.org/10.1134/S1063784219060033
- ID: 203635
Дәйексөз келтіру
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\()_{6}^{{ - 4}}\)).
Авторлар туралы
M. Baidakova
Ioffe Institute
Хат алмасуға жауапты Автор.
Email: baidakova@mail.ioffe.ru
Ресей, St. Petersburg, 194021
N. Germanov
OOO Nanometall
Email: baidakova@mail.ioffe.ru
Ресей, St. Petersburg, 194100
S. Golyandin
Ioffe Institute; OOO Nanometall
Email: baidakova@mail.ioffe.ru
Ресей, St. Petersburg, 194021; St. Petersburg, 194100
M. Kompan
Ioffe Institute
Email: baidakova@mail.ioffe.ru
Ресей, St. Petersburg, 194021
S. Mochalov
OOO Nanometall
Email: baidakova@mail.ioffe.ru
Ресей, St. Petersburg, 194100
A. Nashchekin
Ioffe Institute
Email: baidakova@mail.ioffe.ru
Ресей, St. Petersburg, 194021
V. Nevedomskii
Ioffe Institute; St. Petersburg Electrotechnical University
Email: baidakova@mail.ioffe.ru
Ресей, St. Petersburg, 194021; St. Petersburg, 197101
S. Pul’nev
OOO Nanometall
Email: baidakova@mail.ioffe.ru
Ресей, St. Petersburg, 194100
M. Rabchinskii
Ioffe Institute
Email: baidakova@mail.ioffe.ru
Ресей, St. Petersburg, 194021
V. Ulin
Ioffe Institute
Email: baidakova@mail.ioffe.ru
Ресей, St. Petersburg, 194021
N. Ulin
Ioffe Institute
Email: baidakova@mail.ioffe.ru
Ресей, St. Petersburg, 194021