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- W200748244 abstract "The porosity and adsorption capacity of active carbons depended on the nature of the raw materials. Wood chips have been used as a raw material to produce active carbon. Activecarbons have been prepared by chemical activation of wood chips with H₃PO₄ in order to show the effect of variables such as concentration, time and temperature of the resultingactive carbons. The adsorption capacity was demonstrated by the isotherms of methylene blue from aqueous solution. Different concentrations of phosphoric acid were applied toall active carbons samples. Phosphoric acid activation was used to produce high porosity and high surface area active carbons. Experiments were conducted in lab scale muftlefurnace in a two stage self-generated method covering process parameters such as concentration, activation time and temperature. The resulting active carbons werecharacterized by the removal of methylene blue from aqueous solution. Adsorption isotherms of methylene blue from aqueous solution onto active carbons were investigated.The Freundlich model is suited to fit the adsorption data according to correlation coefficient. From all active carbon samples, AK8 shows good correlation coefficient withR²= 0.91. The kinetic adsorption of methylene blue on all carbons follows a pseudo second- order equation. Surface morphology carried out on the wood chips based activecarbons were observed by scanning electron microscope. Infrared spectroscopy showed the chemical structure of the adsorbent materials. As a result, the adsorption capacity ofactive carbons was differentiate with concentration, time and temperature." @default.
- W200748244 created "2016-06-24" @default.
- W200748244 creator A5063581079 @default.
- W200748244 date "2006-01-01" @default.
- W200748244 modified "2023-09-26" @default.
- W200748244 title "Utilization of wood chips as a source of active carbon for removal of methylene blue from aqueous solution (H3P04)" @default.
- W200748244 hasPublicationYear "2006" @default.
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