Electrospun biosystems made of nylon 6 and laccase and its application in dyes removal

Electrospun materials, due to the possibility of design their properties, are suitable as supports for enzyme immobilization. Produced biocatalytic systems might be then apply in various reactions, including conversion pollutants. In our study, electrospun fibers made from nylon 6 was produced, modified and applied a support laccase immobilization by adsorption covalent binding. The with immobilized were used decolorization process selected dyes, azo dye Reactive Black 5 anthraquinone Blue 4. It found that at solution concentration 1 mg/L pH 5, temperature 25 °C, after 24 h efficiency 4 reached 77% 63%, respectively. storage stability studies showed 30 days storage, relative activities 60% 95% adsorbed covalently bonded oxidoreductase Moreover, 10 consecutive catalytic cycles retained over 70% respectively, indicating application obtained on larger scale removal phenolic pollutants wastewaters.