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 2

The particle size distributions of Fe3O4 that were synthesized under different conditions: (a) Fe3O4; (b) Fe3O4-oleic acid; (c) Fe3O4-oleic acid-(β-CDs): Fe2+/Fe3+/β-CDs = 0.33/1/1.