Please use this identifier to cite or link to this item: http://repositorio.unicamp.br/jspui/handle/REPOSIP/23788
Type: Artigo de periódico
Title: Aplicação de Zr/Ti-PILC no processo de adsorção de Cu(II), Co(II) e Ni(II) utilizando modelos físico-químicos de adsorção e termodinâmica do processo
Title Alternative: Application of Zr/Ti-PILC in the adsorption process of Cu(II), Co(II) and Ni(II) using adsorption physico-chemical models and thermodinamics of the process
Author: Guerra, Denis Lima
Airoldi, Claudio
Lemos, Vanda Porpino
Angélica, Rômulo Simões
Viana, Rúbia Ribeiro
Abstract: The aim of this investigation is to study how Zr/Ti-PILC adsorbs metals. The physico-chemical proprieties of Zr/Ti-PILC have been optimized with pillarization processes and Cu(II), Ni(II) and Co(II) adsorption from aqueous solution has been carried out, with maximum adsorption values of 8.85, 8.30 and 7.78 x10-1 mmol g-1, respectively. The Langmuir, Freundlich and Temkin adsorption isotherm models have been applied to fit the experimental data with a linear regression process. The energetic effect caused by metal interaction was determined through calorimetric titration at the solid-liquid interface and gave a net thermal effect that enabled the calculation of the exothermic values and the equilibrium constant.
Subject: adsorption isotherms
metals
Zr/Ti -pillared clay
Editor: Sociedade Brasileira de Química
Rights: aberto
Identifier DOI: 10.1590/S0100-40422008000200031
Address: http://dx.doi.org/10.1590/S0100-40422008000200031
http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-40422008000200031
Date Issue: 1-Jan-2008
Appears in Collections:Artigos e Materiais de Revistas Científicas - Unicamp

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