A setup for electrically controlled liquid-phase sorption of organic pollutants on nanostructured materials

Tambov State Technical University, Department “Technology and Methods of Nanoproducts Manufacturing”, 392000, 106 Sovetskaya Str., Tambov, Russia

^* Corresponding Author: lenok.n1992@mail.ru

Abstract

The present paper considers the possibility of intensifying the process of liquid-phase sorption of organic molecules of methyl orange dye through exposure to an electromagnetic field. A laboratory setup for water conditioning and an experimental procedure are presented. Activated carbons of different chemical nature (stone carbon – AG-5, charcoal – BAU-A, and NWC coconut shell carbon in its initial form – NWC and nanomodified with carbon nanotubes – NWC-T) were used as sorption materials. Moreover, the possibility of employing “Taunit”-series (Taunit, Taunit-M, Tainit-MD) carbon nanotubes (CNTs), produced at NanoTechCenter Ltd. (Tambov, Russia), in its native form in the process of electrically controlled sorption was also evaluated. In the course of performing comparative studies, the positive influence of the electromagnetic field on the sorption process was established. The adsorption capacity of the sorbents was found to increase 1.5-2 times under the voltage of 100 V. The sorption activity of the materials under study increased in the following sequence: BAU-A<AG-5<NWC <NWC-T <“Taunt“<“Taunit-MD“<“Taunit-M“