Characterization and Properties of Activated Carbon Prepared from Tamarind Seeds by KOH Activation for Fe(III) Adsorption from Aqueous Solution

Figure 5

FTIR transmission spectra of (a) activated carbon prepared with 0.5 : 1 impregnation ratio and activated at 500°C, (b) activated carbon prepared with 1.0 : 1 impregnation ratio and activated at 500°C, (c) activated carbon prepared with 1.5 : 1 impregnation ratio and activated at 500°C, (d) activated carbon prepared with 0.5 : 1 impregnation ratio and activated at 600°C, (e) activated carbon prepared with 1.0 : 1 impregnation ratio and activated at 600°C, (f) activated carbon prepared with 1.5 : 1 impregnation ratio and activated at 600°C, (g) activated carbon prepared with 0.5 : 1 impregnation ratio and activated at 700°C, (h) activated carbon prepared with 1.0 : 1 impregnation ratio and activated at 700°C, and (i) activated carbon prepared with 1.5 : 1 impregnation ratio and activated at 700°C.