Fig. 1. (a) XRD pattern of cellulose-based GO compared with database patterns for carbon (JCPDS 44-0558) and cellulose (JCPDS 50-2241). (b) Raman spectra of the obtained GO (red line) and bare cellulose (green line). SEM images of (c) CA, (d) CA–GO, and (e) CA–GO–NA nanofibers.