Methylene blue adsorption onto modified lignin from sugar cane bagasse
Vol. 32 No. 4 (2007), Original articles
Vol. 32 No. 4 (2007)

Methylene blue adsorption onto modified lignin from sugar cane bagasse

Original articles
https://doi.org/10.26850/1678-4618eqj.v32.4.2007.p63-70
Published 2007-12-29
Nelson Consolin-Filho
Embrapa, Instrumentação Agropecuária, São Carlos, Brasil.
Everaldo Carlos Venancio
Embrapa, Instrumentação Agropecuária, São Carlos, Brasil.
Marcilene Ferrari Barriquello
Embrapa, Instrumentação Agropecuária, São Carlos, Brasil.
Ana Adelina Winkler Hechenleitner
Universidade Estadual de Maringá, Departamento de Química, Maringá, Brasil.
Edgardo Afonso Gómez Pineda
Universidade Estadual de Maringá, Departamento de Química, Maringá, Brasil.
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Keywords

methylene blue
lignin
adsorption

How to Cite

Consolin-Filho, N., Venancio, E. C., Barriquello, M. F., Hechenleitner, A. A. W., & Pineda, E. A. G. (2007). Methylene blue adsorption onto modified lignin from sugar cane bagasse. Eclética Química, 32(4), 63–70. https://doi.org/10.26850/1678-4618eqj.v32.4.2007.p63-70
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Abstract

The adsorption kinetics and equilibrium of methylene blue (MB) onto reticulated formic
lignin (RFL) from sugar cane bagasse was studied. The adsorption process is pH, temperature and ionic
strength (μ) dependent and obeys the Langmuir model. Conditions for higher adsorption rate and
capacity were determined. The faster adsorption (12 hours) and higher adsorption capacity (34.20
mg.g -1 ) were observed at pH = 5.8 (acetic acid-sodium acetate aqueous buffer), 50 °C and 0.1 ionic
strength. Under temperature (50 °C) control and occasional mechanical stirring it took from 1 to 10
days to reach the equilibrium.

https://doi.org/10.26850/1678-4618eqj.v32.4.2007.p63-70
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