This paper reports the effect of acidic and basic chemical activating agents in preparation of ac... more This paper reports the effect of acidic and basic chemical activating agents in preparation of activated carbons (ACs) by pyrolysis of Acacia Mangium hard wood powder. Activation was carried out in caped silica crucibles kept inside the muffle furnace under the environment of gas generated by own burning of precursor materials. The mesopore and micropore characterization of the formed ACs were done by physical adsorption of N2 gas at 273K. BET surface area has been found 400.7 m2/g for char, 5.3 m2/g for potassium hydroxide (KOH) and 1036.0 m2/g for orthophosphoric acid (H3PO4) activated carbon fibers and corresponding D-R micropore area have been found 620.4 m2/g, 11.5 m2/g and 1592.0 m2/g, respectively. Cation-exchange capacity (CEC) for KOH and H3PO4 activated carbon fibers have been tested using modified method based on Boehm’s technique and it is observed that acidic activating agents (4.72±0.16 mmol/g, for H3PO4 activated carbon) shows higher cation exchange capacity than basi...
This paper reports the effect of acidic and basic chemical activating agents in preparation of ac... more This paper reports the effect of acidic and basic chemical activating agents in preparation of activated carbons (ACs) by pyrolysis of Acacia Mangium hard wood powder. Activation was carried out in caped silica crucibles kept inside the muffle furnace under the environment of gas generated by own burning of precursor materials. The mesopore and micropore characterization of the formed ACs were done by physical adsorption of N2 gas at 273K. BET surface area has been found 400.7 m2/g for char, 5.3 m2/g for potassium hydroxide (KOH) and 1036.0 m2/g for orthophosphoric acid (H3PO4) activated carbon fibers and corresponding D-R micropore area have been found 620.4 m2/g, 11.5 m2/g and 1592.0 m2/g, respectively. Cation-exchange capacity (CEC) for KOH and H3PO4 activated carbon fibers have been tested using modified method based on Boehm’s technique and it is observed that acidic activating agents (4.72±0.16 mmol/g, for H3PO4 activated carbon) shows higher cation exchange capacity than basi...
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Papers by Anees Ahmad