Structural properties of carbon spheres were further probed and results are shown in Fig. 3. In a FTIR spectrum (Fig. 3a), 3400 cm- 1 and 1700 cm- 1 are attributed to –OH group vibration and C¼ ion, respectively. The presence of
Structural properties of carbon spheres were further probedand results are shown in Fig. 3. In a FTIR spectrum (Fig. 3a), 3400 cm- 1 and 1700 cm- 1 are attributed to –OH group vibration and C¼ ion, respectively. The presence of