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Título: | Application of succinylated sugarcane bagasse as adsorbent to remove methylene blue and gentian violet from aqueous solutions - kinetic and equilibrium studies. |
Autor(es): | Gusmão, Karla Aparecida Guimarães Gurgel, Leandro Vinícius Alves Melo, Tânia Márcia Sacramento Gil, Laurent Frédéric |
Palavras-chave: | Adsorption kinetics Cationic dye Methylene blue Gentian violet |
Data do documento: | 2012 |
Referência: | GUSMÃO, K. A. G. et al. Application of succinylated sugarcane bagasse as adsorbent to remove methylene blue and gentian violet from aqueous solutions - kinetic and equilibrium studies. Dyes and Pigments, v. 92, p. 967-974, 2012. Disponível em: <http://www.sciencedirect.com/science/article/pii/S0143720811002567>. Acesso em: 02 fev. 2015. |
Resumo: | In a previous work, succinylated sugarcane bagasse (SCB 2) was prepared from sugarcane bagasse (B) using succinic anhydride as modifying agent. In this work the adsorption of cationic dyes onto SCB 2 from aqueous solutions was investigated. Methylene blue, MB, and gentian violet, GV, were selected as adsorbates. The capacity of SCB 2 to adsorb MB and GV from aqueous single dye solutions was evaluated at different contact times, pH, and initial adsorbent concentration. According to the obtained results, the adsorption processes could be described by the pseudo-second-order kinetic model. Adsorption isotherms were well fitted by Langmuir model. Maximum adsorption capacities for MB and GV onto SCB 2 were found to be 478.5 and 1273.2 mg/g, respectively. |
URI: | http://www.repositorio.ufop.br/handle/123456789/5033 |
DOI: | https://doi.org/10.1016/j.dyepig.2011.09.005 |
ISSN: | 0143-7208 |
Licença: | O periódico Dyes and Pigments concede permissão para depósito deste artigo no Repositório Institucional da UFOP. Número da licença: 3581341183349. |
Aparece nas coleções: | DEQUI - Artigos publicados em periódicos |
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ARTIGO_ApplicationSuccinylatedSugarcane.pdf | 395,33 kB | Adobe PDF | Visualizar/Abrir |
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