“…The work [6] presents the results of the synthesis of CNTs with a diameter of 30-50 nm by catalytic pyrolysis of polyethylene waste. Interest in the production of carbon nanotubes is due to the wide range of applications of these nanomaterials in various industries: energy [7], textile industry [8], as sorbent materials for wastewater treatment [9] due to the high values of the specific surface [10]. ISSN 2224-5286 6.…”