E. Yu. Obraztsova, M. N. Barshutina, E. S. Bakunin, A. V. Rukhov, A. A. Shipovskaya, A. V. Shuklinov, “Adsorption characteristics of nanographite oxide obtained from thermally expanded graphite”, Mendeleev Commun., 2020, Volume 30, Issue 2,Pages <nobr>174

This article is cited in 6 papers

Communications

Adsorption characteristics of nanographite oxide obtained from thermally expanded graphite

E. Yu. Obraztsova^a, M. N. Barshutina^b, E. S. Bakunin^a, A. V. Rukhov^a, A. A. Shipovskaya^a, A. V. Shuklinov^c

^a Tambov State Technical University, Tambov, Russian Federation
^b Institute of Chemistry, St. Petersburg State University, St. Petersburg, Russian Federation
^c G.R. Derzhavin Tambov State University, Tambov, Russian Federation

Abstract: Nanographite oxide was synthesized from thermally expanded graphite in an environmentally friendly electrochemical manner, and its adsorption properties were examined in a batch system. Three two-parameter isotherm models (Langmuir, Freundlich, and Dubinin–Radushkevich) were applied for the experimental data processing, and the adsorption kinetics was estimated according to pseudo-first and pseudo-second order simplified kinetic models. The acquired results revealed that obtaned nanographite oxide can be employed as an inexpensive and efficient adsorbent for removal of acidic dyes from aqueous solutions.

Keywords: nanographite oxide, thermally expanded graphite, methyl orange, adsorption isotherm, adsorption kinetics, diffusion mechanism.

Language: English

DOI: 10.1016/j.mencom.2020.03.014

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