Extraction and Characterization of Microfibrillated Cellulose from Discarded Cotton Fibers through Catalyst Preloaded Fenton Oxidation

Figure 6

SEM images of the freeze-dried materials. (a) Cotton cellulose, (b) enlarged image from (a), (c) MFC, and (d) enlarged image from (c).

(a)

(b)

(c)

(d)