Research Article

ABTS-Modified Silica Nanoparticles as Laccase Mediators for Decolorization of Indigo Carmine Dye

Figure 4

Decolorization of indigo carmine (20 mg/L) by ABTS-SNPs (10 g/L containing 70 μM ABTS), laccase (3000 U/L), laccase/ABTS-SNPs, and laccase/ABTS (70 μM ABTS) in 50 mM sodium acetate buffer at pH 4.5 with shaking at 150 rpm at room temperature.