Mesostructured cellular foam silica materials for laccase immobilization and tetracycline removal: A comprehensive study

摘要: Abstract Due to its exceptional textural, morphological and mechanical properties, mesostructured cellular foam (MCF) silica is a suitable support material for enzyme immobilization. However, the simple efficient protocol of immobilization using MCF often overlooked. Thus, in presented study, we describe synthesis, modification characterization use laccase It has been established that synthesized materials are characterized by high surface area equal approx. 550 m2 g−1 pores with diameters 20 nm, which makes them effective binding. Furthermore, onto both, unmodified Cu-modified carried out, resulting process yield over 95% 85%, respectively. Upon immobilization, irrespectively used, retained higher activity (over 80%) at wider temperature (20–40 °C) pH (4–7) range, as compared free enzyme, exhibited such only 5 30 °C. In addition, reusability immobilized MCF + Cu also improved it still 90% initial after 10 reaction cycles. Finally, obtained biocatalytic systems have applied degradation tetracycline from aqueous solutions 100% removal antibiotic MCF + Cu + lac system due simultaneous adsorption conversion.