Research Article

Dilute Alkali and Hydrogen Peroxide Treatment of Microwave Liquefied Rape Straw Residue for the Extraction of Cellulose Nanocrystals

Figure 4

FT-IR transmittances of residues from different treatments: (a) 180°C/7.5 min; (b) 2% NaOH for 1 h; (c) 5% H2O2 for 5 h; (d) ultrasonication for 15 min.