Fig. 2. Morphology and structure of LIG-80. (a) SEM image; scale bar is 50 μm. (b and c) High resolution SEM images; scale bars are 10 μm and 2 μm, respectively. (d) TEM image; scale bar is 0.2 μm. (e and f) HRTEM images; scale bars are 20 nm and 5 nm, respectively. LIG embedded on the lignin/PEO film was used for SEM imaging, while LIG powder scraped from the lignin/PEO film was used for TEM imaging.
