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Type: Artigo de periódico
Title: Application of Zr/Ti-PILC in the adsorption process of Cu(II), Co(II) and Ni(II) using adsorption physicochemical models and thermodinamics of the process
Author: Guerra, DL
Airoldi, C
Lemos, VP
Angelica, RS
Viana, RR
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 x 10(-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
Zr/Ti-pillared clay
Country: Brasil
Editor: Soc Brasileira Quimica
Citation: Quimica Nova. Soc Brasileira Quimica, v. 31, n. 2, n. 353, n. 359, 2008.
Rights: aberto
Identifier DOI: 10.1590/S0100-40422008000200031
Date Issue: 2008
Appears in Collections:Unicamp - Artigos e Outros Documentos

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