| abstract |
A method of producing a carbon adsorbent from waste polyethylene terephthalate, which can be used to purify water and gas emissions. The method includes preparing a mixture of crushed polyethylene terephthalate (PET) as a carbon-containing base and a modifying additive in the form of a chemical reagent, which is concentrated sulfuric acid, modifying the surface of the base by holding the heated mixture, drying the modified base at a temperature of 100-110 ° C and chemical activation, which is carried out in a stream of water vapor at 750-800 ° C for 10-20 minutes The mass ratio of the carbon-containing base and the modifying additive is mainly 1: 2, while the modification is carried out by heating a mixture of PET and sulfur� |