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

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

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

0.8

2019CiteScore

36th percentile