Production of activated carbon from a new precursor molasses by activation with sulphuric acid
| Autor: | K. Legrouri, Roger Naslain, Renaud Denoyel, R Pallier, M. Ezzine, Hassan Hannache, E. Khouya |
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| Rok vydání: | 2004 |
| Předmět: |
Environmental Engineering
Health Toxicology and Mutagenesis chemistry.chemical_element Waste Disposal Fluid chemistry.chemical_compound Adsorption medicine Environmental Chemistry Organic chemistry Food Industry Molasses Waste Management and Disposal Temperature Sulfuric acid Microporous material Sulfuric Acids Pollution Carbon chemistry Porosity Methylene blue Activated carbon medicine.drug Nuclear chemistry Waste disposal BET theory |
| Zdroj: | Journal of hazardous materials. 118(1-3) |
| ISSN: | 0304-3894 |
| Popis: | Activated carbon has been prepared from molasses, a natural precursor of vegetable origin resulting from the sugar industry in Morocco. The preparation of the activated carbon from the molasses has been carried out by impregnation of the precursor with sulphuric acid, followed by carbonisation at varying conditions (temperature and gas coverage) in order to optimize preparation parameters. The influence of activation conditions was investigated by determination of adsorption capacity of methylene blue and iodine, the BET surface area, and the pore volume of the activated carbon were determined while the micropore volume was determined by the Dubinin-Radushkevich (DR) equation. The activated materials are mainly microporous and reveal the type I isotherm of the Brunauer classification for nitrogen adsorption. The activated carbons properties in this study were found for activation of the mixture (molasses/sulphuric acid) in steam at 750 degrees C. The samples obtained in this condition were highly microporous, with high surface area (> or =1200 m2/g) and the maximum adsorption capacity of methylene blue and iodine were 435 and 1430 mg/g, respectively. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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