Fig. 8
From: Mesoporous activated carbon yielded from pre-leached cassava peels
SEM micrographs at ×600 resolution and selected inset TEM images: a raw cassava peel; b cut-away surface for the washed AC briquette carbonized at 780 °C and TEM AC image (inset) for carbon and potassium, c outer surface of the unwashed AC briquette carbonized at 780 °C; d outer surface of the washed AC briquette; e powdered AC from pre-leached peels carbonized at 780 °C and TEM AC image (inset) for activated carbon; f powdered AC carbonized at 780 °C without pre-leaching