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Preparation of activated carbons previously treated with sulfuric acid: A study of their adsorption capacity in solution |
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| Authors: | E.M. Cuerda-Correa,M.A. Dí az-Dí ez,J. Gañ á n-Gó mez |
| Affiliation: | a Departamento de Química Inorgánica, Facultad de Ciencias, Universidad de Extremadura, 06071 Badajoz, Spain b Área de Ciencia de Materiales e Ingeniería Metalúrgica, Escuela de Ingenierías Industriales, Universidad de Extremadura, 06071 Badajoz, Spain c Escuela de Ingenierías Industriales, Universidad de Extremadura, 06071 Badajoz, Spain |
| Abstract: | In the present work, cedar wood has been used as raw material for the preparation of activated carbons. The influence of a previous treatment with sulfuric acid on the textural properties of the carbonized and activated samples has been investigated. Finally, the adsorption capacity of para-nitrophenol in aqueous solution has been studied and the corresponding adsorption isotherms have been fitted to Langmuir's equation. The experimental results indicate that the previous dehydration of the raw material with sulfuric acid gives rise to an improvement in the porous texture and adsorption capacity of the activated carbons. |
| Keywords: | 61.43.Gt 67.70.+n 68.08.&minus p |
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