首页|Modification of Activated Carbon Derived from Cyperus Papyrus Plant
Modification of Activated Carbon Derived from Cyperus Papyrus Plant
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Activated carbon from papyrus plant was prepared by the chemical activation with sulfuric acid 3:1 (wt./wt.). The prepared activated carbon then burningat 600°C under N _( 2 ) atmosphere for 2 h. The produce coded AC _( 0 ) , further modification of AC _( 0 ) by using different oxidizing and reducing solutions. The solutions were a (mixture NaNO _( 3 ) with KMnO _( 4 ) in 10% H _( 2 ) SO _( 4 ) coded (AC _( 1 ) ) 10% ZnCl _( 2 ) coded (AC _( 2 ) ) 10% NaBH _( 4 ) coded (AC _( 3 ) ) 10% HNO _( 3 ) coded (AC _( 4 ) ). Characterization propertiesforthe prepared activated carbons (AC _( 0 ) -AC _( 4 ) ) were accomplished using techniques including FTIR, SEM, XRD, TGA and BET. BET showed a substantial increase in the surface area of AC _( 2 ) , AC _( 3 ) , accompanied by reduced intensities of certain IR vibrations (1720, 3420 cm ~( -1 ) ) as well as absence of pronounced peak at 2θ = 25 in XRD. While samples prepared by the treatment with oxidizing reagent showed a noticeable increase in the intensity of IR band at 3420 cm ~( -1 ) as well as emergence of vibration band at 1720 cm ~( -1 ) . Moreover, the peak at 2θ = 25 were showed an increase in the intensity. The pore volume showed variable behavior depending on the type of the reagent used for the treatment. However, the pore volume increased by the treatment with NaBH _( 4 ) and decreased by the treatment with NaNO _( 3 ) /KMnO _( 4 ) solution. The TGA thermographs were with a good accordance with pore volume indicating a high carbon percentage more than 82% by the end of heating cycle and departure of volatile hydrocarbons as a result of treatment with reducing agents particularly NaBH _( 4 ) right from the beginnings.
sulfuric acidpapyrus plantmodified active carbonActivated carbonparticularlyemergence
NSTL
