| Abstract [eng] |
The aim of this study was to provide a conceptual framework for the development of environmentally friendly Graphene oxide (GO) - Chitosan (CS) composites and thin films with adjustable biodegradability that could serve to protect water systems and are capable of reducing the environmental burden of toxic waste by replacing plastics with non-toxic natural materials. Films made of CS are naturally biodegradable. A notable property of GO that is relevant to the food industry is its exceptional ability to act as a barrier against gasses. These GO-CS composites are used in food packaging solutions where they shield moisture and gasses. Copper nanoparticles are known for their antimicrobial activity, thermal conductivity, barrier reinforcement and improved mechanical properties. As far as is currently known, thin GO-CS-Pt-Cu2O/Cu composite films were synthesized for the first time and used in antimicrobial studies against E. coli. In addition, the biodegradability of GO-CS-Pt-copper oxide /copper in soil and the migration rate of copper by the double contact method in food simulants after 10 days were investigated for the first time. Chitosan can form chelates with metal ions and radionuclides due to the presence of amino groups. graphene oxide (GO) can form stable dispersions in water, facilitating its interaction with aqueous pollutants. The magnetic properties of maghemite (MG) are very advantageous as they facilitate the separation of the adsorbent from the aqueous medium after the adsorption process. To the best of our knowledge, MGH, GO-MGH, GO-MGH-CS I, GO- MGH-CS II, GO-MGH-CS III were not used for the adsorption of europium as well as for the removal of Eu(III), Pu(IV) and Am(III) from natural waters. |
