Adsorption of 5.5’-Disulfonicindigotin(5.5’-DI)onto Green Coconut Fiber(Cocos nucifera L.):Kinetic and Isotherms

Lívia F.Zeferino; Ivanise Gaubeur; Maria E.V.Suárez-Iha; Patricia A.M.Freitas

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Adsorption of 5.5’-Disulfonicindigotin(5.5’-DI)onto Green Coconut Fiber(Cocos nucifera L.):Kinetic and Isotherms

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Green coconut fiber (Cocos nucifera L.) has been largely used in solid-phase extraction. The effect of the initial dye concentration (1.91, 3.02 and 4.02) × 10-5 mol·L-1 and solid phase contact (SPE) time were evaluated at different temperatures (283, 298 and 313) K at pH 2. Kinetic experimental data were applied to three simplified kinetic models: pseudo-first order, pseudo-second order, and intraparticle diffusion. The adsorption of 5.5’-DI onto the solid phase showed excellent fit to the pseudo-second order model. At 283, 298 and 313 K the maximum sorption, qmax,exp, for the lowest initial concentration (Co = 1.91 × 10-5 mol·L-1) of 5.5’-DI were (5.01, 5.24 and 6.14) × 10-4 g·g-1;for Co = 3.02 × 10-5 mol·L-1 (0.93, 1.01 and 1.03) × 10-3

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《封装与吸附期刊（英文）》 |2014年第2期|37-52|共16页
作者
Lívia F.Zeferino; Ivanise Gaubeur; Maria E.V.Suárez-Iha; Patricia A.M.Freitas;
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作者单位

Centro Universitário do Instituto Mauáde Tecnologia;

Escola de Engenharia Mauá;

Sao Caetano do Sul;

Brazil;

Centro de Ciências Naturais e Humanas;

Universidade Federal do ABC;

Santo André;

Brazil;

Escola de Engenharia;

Universidade Presbiteriana Mackenzie;

Sao Paulo;

Brazil;

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原文格式 PDF
正文语种 chi
中图分类化学;
关键词
5.5’-Disulfonicindigotin; Green Coconut; Isotherm and Kinetic Modeling;

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Adsorption of 5.5’-Disulfonicindigotin(5.5’-DI)onto Green Coconut Fiber(Cocos nucifera L.):Kinetic and Isotherms

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