Figure 1

(a) SEM image of the cellulose extracted from Ulva lactuca, (b) and (c) TEM images of cellulose nanocrystals, (d) Particle size distribution of cellulose nanocrystals, (e) Optical micrograph of cellulose nanocrystals-graphene oxide composite film, (f) SEM image of the cellulose nanocrystals-graphene oxide film.