Electrosurface properties of single-crystalline detonation nanodiamond particles obtained by air annealing of their agglomerates
- Authors: Shvidchenko A.V.1, Zhukov A.N.2, Dideikin A.T.1, Baidakova M.V.1, Shestakov M.S.1, Shnitov V.V.1, Vul’ A.Y.1
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Affiliations:
- Ioffe Physical Technical Institute
- St. Petersburg State University
- Issue: Vol 78, No 2 (2016)
- Pages: 235-241
- Section: Article
- URL: https://journals.rcsi.science/1061-933X/article/view/200318
- DOI: https://doi.org/10.1134/S1061933X16020149
- ID: 200318
Cite item
Abstract
A complex study of electrosurface properties has been performed for single-crystalline detonation nanodiamond particles with sizes of 4–5 nm obtained by air annealing of their agglomerates. FTIR spectroscopy and X-ray photoelectron spectroscopy data indicate that the investigated properties result from the presence of two types of ionogenic functional groups on the particle surface, i.e., acidic carboxyl and amphoteric hydroxyl groups. Acid-base potentiometric titration, laser Doppler electrophoresis, and conductometry have been employed to measure the ΓH+(pH) and ΓOH-(pH) adsorption isotherms of potential-determining ions, as well as the pH dependences (in a pH range of 3.5–10.5) of the surface charge density, electrophoretic mobility, and specific surface conductivity of detonation nanodiamond particles in aqueous 0.0001–0.01 M KCl solutions.
About the authors
A. V. Shvidchenko
Ioffe Physical Technical Institute
Author for correspondence.
Email: AlexShvidchenko@mail.ru
Russian Federation, Politekhnicheskaya ul. 26, St. Petersburg, 194021
A. N. Zhukov
St. Petersburg State University
Email: AlexShvidchenko@mail.ru
Russian Federation, Universitetskaya nab. 7/9, St. Petersburg, 199034
A. T. Dideikin
Ioffe Physical Technical Institute
Email: AlexShvidchenko@mail.ru
Russian Federation, Politekhnicheskaya ul. 26, St. Petersburg, 194021
M. V. Baidakova
Ioffe Physical Technical Institute
Email: AlexShvidchenko@mail.ru
Russian Federation, Politekhnicheskaya ul. 26, St. Petersburg, 194021
M. S. Shestakov
Ioffe Physical Technical Institute
Email: AlexShvidchenko@mail.ru
Russian Federation, Politekhnicheskaya ul. 26, St. Petersburg, 194021
V. V. Shnitov
Ioffe Physical Technical Institute
Email: AlexShvidchenko@mail.ru
Russian Federation, Politekhnicheskaya ul. 26, St. Petersburg, 194021
A. Ya. Vul’
Ioffe Physical Technical Institute
Email: AlexShvidchenko@mail.ru
Russian Federation, Politekhnicheskaya ul. 26, St. Petersburg, 194021
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