Adequação da isoterma de adsorção do corante reativo preto 5 pelas microesferas de quitosana reticulada

Irene Yukiko Kimura; Valfredo Tadeu Favere; Amarildo Otavio Martins; Viviane Aparecida Spinelli; Atche Josué

doi:10.4025/actascitechnol.v23i0.2753

Adequacy of isotherm adsorption of black 5 reactive dye for crosslinked chitosan microspheres

Authors

Irene Yukiko Kimura UEM
Valfredo Tadeu Favere UFSC
Amarildo Otavio Martins UFSC
Viviane Aparecida Spinelli UFSC
Atche Josué UFSC

DOI:

https://doi.org/10.4025/actascitechnol.v23i0.2753

Keywords:

adsorção, microesfera de quitosana, corante reativo

Abstract

Chitosan microspheres with average diameter 1.03 ± 0.06 mm and degree of deacetylation of 72.5% were employed as adsorbent for reactive dye black 5. Chitosan was characterized through infrared spectroscopy (IR), ¹³C NMR spectrum and deacetylation degree (DD%), and crosslinked with glutaraldehyde 2.5% (w/v) to increase its resistance in acid medium. Corresponding isotherms were obtained in acid and alkaline solutions. Experimental data were fitted by Langmuir´s, extended Freundlich´s and Nernst´s isotherms. Adsorption was more effective in acid medium and adjusted better the Langmuir´s isotherm

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Author Biography

Irene Yukiko Kimura, UEM

possui graduação em Licenciatura Plena Em Química pela Universidade Estadual de Maringá (1983), graduação em Bacharelado Em Química pela Universidade Estadual de Maringá (1984) e doutorado em Química pela Universidade Federal de Santa Catarina (2001). Atualmente é professor adjunto da Universidade Estadual de Maringá. Tem experiência na área de Química, com ênfase em Separação, atuando principalmente nos seguintes temas: quitosana, adsorção, corantes reativos e efluente têxtilCurrículo Lattes

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Published

2008-05-05

How to Cite

Kimura, I. Y., Favere, V. T., Martins, A. O., Spinelli, V. A., & Josué, A. (2008). Adequacy of isotherm adsorption of black 5 reactive dye for crosslinked chitosan microspheres. Acta Scientiarum. Technology, 23, 1313–1317. https://doi.org/10.4025/actascitechnol.v23i0.2753

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Issue

Vol. 23 (2001)

Section

Chemistry

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0.8

2019CiteScore

36th percentile