Cellulose / waste Cu-activated carbon composite: A sustainable and green material for boosting laccase activity and degradation of bisphenol A in wastewater.

Low enzyme activity is one of the disadvantages of immobilized laccase. In this study, waste Cu-loaded activated carbon (Cu-AC) was successfully used in preparing a novel composite support，cellulose / Cu-loaded activated carbon beads (C / Cu-AC)， and effectively boosted immobilized laccase activity. To achieve optimum conditions for immobilization of laccase, the immobilization time, pH and laccase concentration were examined.