The surface morphology analysis of cellulose and nanocellulose products was studied with a field emission scanning electron microscope (FESEM; Hitachi SU8030, (Hitachi HTA, Schaumburg, IL, USA)) at an accelerating voltage of 5 kV. The samples were mounted on double-sided adhesive carbon tapes that stick on aluminum stubs, and coated with platinum using an auto-fine coater (JFC-1600, (JEOL, Ltd., Tokyo, Japan)) to improve conductivity and avoid over-charging. The elemental analysis of each sample was determined using EDX coupled with FESEM unit. The size and dimensions of yielded nanocellulose were further investigated by a transmission electron microscope (TEM; Tecnai G2 F20 Series, (FEI company, Hillsboro, OR, USA)) performed at a 200 kV acceleration voltage. To perform the TEM analysis, a nanocellulose suspension was treated with ultrasound for 3 min to separate agglomerated fibers. A droplet of the diluted suspension was deposited on a copper grid coated with a thin carbon film, and dried in a vacuum desiccator prior to analysis to ensure the samples were completely dry. The morphology and diameter of the yielded nanocellulose fibers were determined by analyzing the micrographs with ImageJ software (National Institutes of Health, New York, NY, USA).