Production and comparison of high surface area bamboo derived active carbons
| Autor: | Gordon McKay, Alvin W. M. Ip, John P. Barford |
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| Rok vydání: | 2007 |
| Předmět: |
Langmuir
Bamboo Environmental Engineering Surface Properties Inorganic chemistry Bioengineering chemistry.chemical_compound Adsorption medicine Freundlich equation Phosphoric Acids Coloring Agents Waste Management and Disposal Phosphoric acid Bone char Renewable Energy Sustainability and the Environment Chemistry technology industry and agriculture Temperature General Medicine Carbon Chemical engineering Sasa Acid dye Porosity Activated carbon medicine.drug |
| Zdroj: | Bioresource technology. 99(18) |
| ISSN: | 0960-8524 |
| Popis: | High surface area activated carbons have been produced from the natural biomaterial bamboo, using phosphoric acid as the activating agent. The effects of phosphoric acid impregnation ratio, activation temperature, heating rate on the carbon surface area, porosity and mass yield are presented. Three of these bamboo derived active carbons, surface areas 1337, 1628 and 2123 m2/g were assessed for their ability to adsorb Acid Red 18 dye from aqueous solution; these results were compared with three conventional adsorbents: activated carbon F400, bone char and peat. Isotherm data were analysed using Langmuir, Freundlich, Redlich–Peterson and Langmuir–Freundlich isotherms. Different isotherms provided the best fit correlations to the adsorption experimental data but the Langmuir–Freundlich equation provided the best overall correlation of data. The adsorption capacities of two of the selected bamboo derived carbons were much greater than the capacities of the other three adsorbents. |
| Databáze: | OpenAIRE |
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