▎ 摘　　要

A novel sorption nanocomposite material is synthesized. A method for manufacturing of a nanocomposite based on graphene oxide (GO) modified with a natural sulfo derivative of lignin (lignosulfonate (LS)) followed by lyophilization is developed. The modification is aimed at an increase in the sorption capacity of the final material and a decrease in the content of expensive GO. Several variants of the nanocomposite with different contents of the original components are synthesized. The properties of the resulting nanocomposite are studied with the aid of transmission electron microscopy, Raman and IR spectroscopy, X-ray diffraction, and thermogravimetry. The parameters of the porous space were determined using nitrogen adsorption. The sorption capacity of the nanocomposite is assessed using sorption study with extraction of two types of pollutants from aqueous solutions: organic (synthetic dye methylene blue (MB)) and inorganic (lead ions). The adsorption is performed under static conditions in a limited volume. The experimental results show that a GO/LS ratio of 2:1 provides the best sorption capacity with respect to lead ions (179 mg/g) and MB molecules (1822.3 mg/g) at a contact time of 20 min. Thus, the experimental study proves the expediency of manufacturing of the GO/LS nanocomposite as a sorption material for removing of organic and inorganic contaminants.