Fig. 4 illustrates the particle size distribution for the banana peel
bran (diameter) and CNFs (length). The bran had an average diameter
of 24.5 mm. Both the bran and the CNFs obtained by CT exhibited
modal distribution. The CNFs achieved by ET presented a bimodal
distribution,with two different length sizes. The peak position of the
length distributions of CNFs originating from CT was lower as
compared with the CNFs generated by ET. This meant that CT was
more aggressivedit degradedamorphous zones and partly destroyed
the crystalline zones of the fibers, to furnish shorter nanofibers.