Research Article

Catalysis of Rice Straw Hydrolysis by the Combination of Immobilized Cellulase from Aspergillus niger on β-Cyclodextrin-Fe3O4 Nanoparticles and Ionic Liquid

Figure 1

X-ray diffraction patterns of Fe3O4 with different ratios of ferric ion, ferrous ion, and β-CDs: (a) Fe2+/Fe3+/β-CDs = 0.33/1/0, (b) Fe2+/Fe3+/β-CDs = 0.33/1/0.02, (c) Fe2+/Fe3+/β-CDs = 0.33/1/0.1, (d) Fe2+/Fe3+/β-CDs = 0.33/1/0.5, and (e) Fe2+/Fe3+/β-CDs = 0.33/1/1.