Weakly Ordered Nanostructured Silver Disilicate and Its Colloidal Solutions: Preparation and Properties
- 作者: 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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隶属关系:
- Ioffe Institute
- OOO Nanometall
- St. Petersburg Electrotechnical University
- 期: 卷 64, 编号 6 (2019)
- 页面: 884-892
- 栏目: 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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详细
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\()_{6}^{{ - 4}}\)).
作者简介
M. Baidakova
Ioffe Institute
编辑信件的主要联系方式.
Email: baidakova@mail.ioffe.ru
俄罗斯联邦, St. Petersburg, 194021
N. Germanov
OOO Nanometall
Email: baidakova@mail.ioffe.ru
俄罗斯联邦, St. Petersburg, 194100
S. Golyandin
Ioffe Institute; OOO Nanometall
Email: baidakova@mail.ioffe.ru
俄罗斯联邦, St. Petersburg, 194021; St. Petersburg, 194100
M. Kompan
Ioffe Institute
Email: baidakova@mail.ioffe.ru
俄罗斯联邦, St. Petersburg, 194021
S. Mochalov
OOO Nanometall
Email: baidakova@mail.ioffe.ru
俄罗斯联邦, St. Petersburg, 194100
A. Nashchekin
Ioffe Institute
Email: baidakova@mail.ioffe.ru
俄罗斯联邦, St. Petersburg, 194021
V. Nevedomskii
Ioffe Institute; St. Petersburg Electrotechnical University
Email: baidakova@mail.ioffe.ru
俄罗斯联邦, St. Petersburg, 194021; St. Petersburg, 197101
S. Pul’nev
OOO Nanometall
Email: baidakova@mail.ioffe.ru
俄罗斯联邦, St. Petersburg, 194100
M. Rabchinskii
Ioffe Institute
Email: baidakova@mail.ioffe.ru
俄罗斯联邦, St. Petersburg, 194021
V. Ulin
Ioffe Institute
Email: baidakova@mail.ioffe.ru
俄罗斯联邦, St. Petersburg, 194021
N. Ulin
Ioffe Institute
Email: baidakova@mail.ioffe.ru
俄罗斯联邦, St. Petersburg, 194021