Nanocomposites and nanomaterials

New effective nanocomposite for removing dyes
Dontsova T.A., Yanushevskaya E.I.
Department of Technology of Inorganic Substances, Water Purification and General Chemical Technology, National Technical University of Ukraine “Igor Sikorsky Kyiv Polytechnic Institute”, Pros. Peremohy, 37, Kyiv-03056, Ukraine. E-mail: dontsova@ua.fm

Creation of efficient and cheap sorption materials is in important task for water purification [1]. For this aim different approaches are being used at present, among which the method of modification is very promising. So in [2] we were offered the modification of natural clays (saponite) by magnetite and chalcogenides of transition metals. It has been shown that as a result of modification the texture characteristics of the clay matrix, adsorptive properties and acidic-basic characteristics change. Thereof a clay matrix based on saponite, magnetite, 2D nanoparticles of molybdenum and tungsten sulfides was selected for synthesis of double and triple nanocomposites. Figure 1 shows the sorption properties of the obtained nanocomposites in relation to the Сongo red.
Figure 1 – Removal of Congo red by the obtained nanocomposites at different concentrations of the dye

As can be seen from Figure 1, the nanocomposites effectively remove Congo red both at low concentrations and high concentrations of the dye. So, the prospect of creating such nanocomposites is obvious.
1.	Dontsova T. A., Nahirniak S. V., Astrelin I. M. Metaloxide Nanomaterials and Nanocomposites of Ecological Purpose // J. Nanomater. – 2019. – Article ID 5942194. – P. 1-31. 
2.	Dontsova T. A., Yanushevskaya E. I., Nahirniak S. V., Makarchuk O. V., Ivanets A. I., Roshchina M. Y., Kutuzova A. S, Kulikov L. M. Directional Control of the Structural Adsorption Properties of Clays by Magnetite Modification // J. Nanomater. – 2018. – Article ID 6573016. – P. 1-9.