Avaliação da capacidade de adsorção do corante reativo laranja 16 pela quitosana

Irene Yukiko Kimura; Valfredo Tadeu de Fávere; Mauro César Marghetti Laranjeira; Atche Josué; Amauri do Nascimento

doi:10.4025/actascitechnol.v22i0.3003

Evaluation of the adsorption capacity of orange 16 reactive dye for chitosan

Irene Yukiko Kimura UEM
Valfredo Tadeu de Fávere UFSC
Mauro César Marghetti Laranjeira UFSC
Atche Josué UFSC
Amauri do Nascimento UFPG

DOI: https://doi.org/10.4025/actascitechnol.v22i0.3003

Abstract

Chitosan (87.2% NH₂) was employed as adsorbent for the orange 16 reactive dye in an aqueous medium. The dye is used in textile dyeing. Isotherms of adsorption were determined according to variations of pH and the initial concentration of the dye. Results of adsorption experiments were analyzed with Langmuir isotherm and indicated an increase of adsorption capacity with pH decrease. This effect is attributed to the increase of -NH₃⁺ groups of the chitosan in acid medium, producing a strong interaction between the cationic group from the chitosan and -SO₃^- group of the dye. Values for q_m were 1613 mg/g (pH 2.0) and 310 mg/g (pH 10.0).

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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

2008-05-13

How to Cite

Kimura, I. Y., Fávere, V. T. de, Laranjeira, M. C. M., Josué, A., & Nascimento, A. do. (2008). Evaluation of the adsorption capacity of orange 16 reactive dye for chitosan. Acta Scientiarum. Technology, 22, 1161-1166. https://doi.org/10.4025/actascitechnol.v22i0.3003

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Issue

Vol 22 (2000)

Section

Chemistry

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0.8

2019CiteScore

36th percentile

0.8

2019CiteScore

36th percentile