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Fullerenes, Nanotubes and Carbon Nanostructures Volume 28, 2020 - Issue 4: Proceedings of the 14th International Conference “Advanced Carbon Nanostructures” (ACNS’2019)
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Proceedings of the 14th International Conference “Advanced Carbon Nanostructures” (ACNS'2019)

Chitosan adsorption on nanodiamonds: stability and mechanism

Artem V. SinolitsDepartment Chemistry, Lomonosov Moscow State University, Moscow, Russian FederationORCID Iconhttp://orcid.org/0000-0002-3657-1679View further author information
ORCID Icon,
Maria G. ChernyshevaDepartment Chemistry, Lomonosov Moscow State University, Moscow, Russian FederationCorrespondence[email protected]
ORCID Iconhttp://orcid.org/0000-0001-5040-9937View further author information
ORCID Icon,
Olesya D. MatveevaDepartment Chemistry, Lomonosov Moscow State University, Moscow, Russian FederationView further author information
,
Andrey G. PopovDepartment Chemistry, Lomonosov Moscow State University, Moscow, Russian FederationView further author information
&
Gennadii A. BadunDepartment Chemistry, Lomonosov Moscow State University, Moscow, Russian FederationORCID Iconhttp://orcid.org/0000-0002-9792-8432View further author information
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Pages 299-303 | Received 26 Jun 2019, Accepted 02 Dec 2019, Published online: 31 Dec 2019
 
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Abstract

Chitosan adsorption complexes were obtained with nanodiamonds possess negative as well as positive zeta-potential in the aqueous suspensions. The application of tritium labeled chitosan allowed the determination of its surface concentration on the nanomaterial and the construction of the adsorption isotherm in the chitosan concentration range from 0.02 to 1 mg/ml. Premodification of nanodiamonds with cationic surfactant suggests mainly electrostatic interactions between chitosan and the surface.

Additional information

Funding

This work was supported by Russian Foundation for Basic Research (grant № 17-03-00985).

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