Sustainable Synthesis and Characterizationof Corncob‐Derived Graphene Oxide

Abstract Recently, though graphene oxide (GO) has shown promising applications in many fields, there have not been studies focusing on exploiting the source of synthetic precursors GO. Herein, GO was synthesized from cellulose corncob by alkalization, bleaching cellulose, pyrolysis, and improved Hummer's method. It found that pyrolysis plays an important role graphitization with catalyst Fe(NO 3 ) to form Gi‐Fe(NO . The material characterized advanced analytical methods. X‐ray diffraction pattern shows formation a peak at crystal plane (002), which is characteristic graphite material. underwent series changes structure morphology, are confirmed via transmission electron microscopy images showing plate‐like folds represented dark line. This study demonstrates sustainable approach directly utilizes abundant biomass resources for synthesis