Figure 3

FESEM photographs of the PAC based on activation solutions of (a) RSS H2SO4, (b) RSS KOH, (c) RSS NaOH, (d) RS H2SO4, (e) RS KOH, and (f) RS NaOH.

FESEM photographs of the PAC based on activation solutions of (a) RSS H2SO4, (b) RSS KOH, (c) RSS NaOH, (d) RS H2SO4, (e) RS KOH, and (f) RS NaOH.