Service interruption on Monday 11 July from 12:30 to 13:00: all the sites of the CCSD (HAL, EpiSciences, SciencesConf, AureHAL) will be inaccessible (network hardware connection).
Skip to Main content Skip to Navigation
Journal articles

Characterization and use of a lignin sample extracted from Eucalyptus grandis sawdust for the removal of methylene blue dye

Abstract : A lignin sample was extracted from Eucalyptus grandis sawdust, by the Klason method, and used as adsorbent for the removal of methylene blue (MB) from aqueous solutions. By using a set of complementary analytical tools, the lignin appeared to be constituted of oxygenated functional groups and aromatic moieties, while showing a specific surface area of 20 m2 g−1 and polydisperse particles. Different experimental conditions with various solid to liquid ratio, pH, as well as other external experimental parameters were investigated for the removal of MB by the lignin sample. The experimental adsorption data at the equilibrium were properly fitted by Langmuir model, while adsorption kinetical isotherms were correctly adjusted by the pseudo-second order model. The MB removal by lignin was spontaneous involving physisorption mechanisms leading to a saturation of the adsorption sites with a maximum adsorbed amount of about 32 mg g−1. The data acquired in this study also emphasized the interests to use lignin as potential adsorbent in the light of its properties for the removal of cationic dyes, including MB, with possible recycling and reuse cycles of lignin without any significant loss of its properties.
Document type :
Journal articles
Complete list of metadata

https://hal-insu.archives-ouvertes.fr/insu-03088351
Contributor : Nathalie POTHIER Connect in order to contact the contributor
Submitted on : Saturday, December 26, 2020 - 9:26:15 AM
Last modification on : Wednesday, May 11, 2022 - 4:39:41 AM
Long-term archiving on: : Monday, March 29, 2021 - 4:42:05 PM

File

1-s2.0-S0141813020353290-main....
Files produced by the author(s)

Identifiers

Collections

Citation

Alexandra Cemin, Fabrício Ferrarini, Matheus Poletto, Luis R Bonetto, Jordana Bortoluz, et al.. Characterization and use of a lignin sample extracted from Eucalyptus grandis sawdust for the removal of methylene blue dye. International Journal of Biological Macromolecules, Elsevier, 2021, 170, pp.375-389. ⟨10.1016/j.ijbiomac.2020.12.155⟩. ⟨insu-03088351⟩

Share

Metrics

Record views

115

Files downloads

32