Fig. 6

The SEM-images of GO, water dispersed GO, and GONF: (a1-2) GO samples at ×500 and ×2000 times; (b1-2) water dispersed GO samples at ×500 and ×2000 times; (c1-2) GONF samples at ×2000 and ×5000 times; (d) EDS analysis of GONF.

The SEM-images of GO, water dispersed GO, and GONF: (a1-2) GO samples at ×500 and ×2000 times; (b1-2) water dispersed GO samples at ×500 and ×2000 times; (c1-2) GONF samples at ×2000 and ×5000 times; (d) EDS analysis of GONF.