Use este identificador para citar ou linkar para este item: http://repositorio.ufla.br/jspui/handle/1/30263
Título: Preparation of activated carbon from sugarcane bagasse soot and methylene blue adsorption
Palavras-chave: Sugarcane bagasse soot
Physical activation
Activated carbon
Adsorption methylene blue
Fuligem do bagaço de cana
Ativação física
Carvão ativado
Adsorção de azul de metileno
Data do documento: Jul-2017
Editor: Springer
Citação: GIUSTO, L. A. R. et al. Preparation of activated carbon from sugarcane bagasse soot and methylene blue adsorption. Water, Air, & Soil Pollution, [S. l.], v. 228, n. 249, p. 1-10, 2017. doi: 10.1007/s11270-017-3422-5.
Resumo: Sugarcane bagasse soot is an agro-industrial residue rich in carbon that can be transformed into value-added materials, such as activated carbons. Therefore, this work aimed at producing activated carbon from sugarcane bagasse soot, using CO2 at 800, 850, and 900 °C, and investigating its efficiency to adsorb methylene blue as model contaminant. The results showed that the surface area and pore volume increased in the obtained carbons, with high specific areas (up to 829 m2/g), and the isotherms of the N2 adsorption describe mesoporous materials. The morphology of the prepared activated carbons showed that sugarcane bagasse soot and the activated carbons kept the fibrous structure of sugarcane bagasse, but after activation, they have cavities that resemble a honeycomb. Adsorption studies with methylene blue dye showed that the activation process resulted in adsorption capacities up to 11 times higher than sugarcane bagasse soot, which is comparable with commercial activated carbon. Dye adsorption kinetics could be described by a pseudo-second-order dependency in the studied materials, and the adsorption isotherms were better fitted by the Langmuir model. It is emphasized that cost-effective materials that are similar to commercial activated carbon were obtained.
URI: https://link.springer.com/article/10.1007/s11270-017-3422-5
http://repositorio.ufla.br/jspui/handle/1/30263
Aparece nas coleções:DQI - Artigos publicados em periódicos

Arquivos associados a este item:
Não existem arquivos associados a este item.


Os itens no repositório estão protegidos por copyright, com todos os direitos reservados, salvo quando é indicado o contrário.