Fig. 3
From: Preparation and Properties of Nanocellulose from Organosolv Straw Pulp
Electron absorption spectra of the nanocellulose films prepared from OSP dispersion after hydrolysis by sulfuric acid of concentration 43% and ultrasound treatment 30 min for different temperature and duration: 20 °C, 30 min (1); 20 °C, 60 min (2); 60 °C, 30 min (3) and 60 °C, 60 min (4)