Please use this identifier to cite or link to this item: http://repositorio.ufpa.br:8080/jspui/handle/2011/6071
Title: Aplicação de Al-PILC na adsorção de Cu2+, Ni2+e Co2+ utilizando modelos físico-químicos de adsorção
Other Titles: Aplication of al-pilc in the adsorption of Cu2+, Ni2+e CO2+ using adsorption physico-chemical models
metadata.dc.creator: GUERRA, Denis de Jesus Lima
AIROLDI, Claudio
LEMOS, Vanda Porpino
ANGÉLICA, Rômulo Simões
VIANA, Rúbia Ribeiro
Keywords: Argila pilarizada
Al13
Esmectita
Adsorção
Isoterma
Metais pesados
Serra de Maicuru - PA
Pará - Estado
Amazônia brasileira
Issue Date: 2007
Citation: GUERRA, D. L. et al. Aplicação de Al-PILC na adsorção de Cu2+, Ni2+ e Co2+ utilizando modelos físico-químicos de adsorção. Eclética Química, São Paulo, v. 32, n. 3, p. 51-60, 2007. Disponível em: <http://www.scielo.br/pdf/eq/v32n3/a08v32n3.pdf>. Acesso em: 30 jul. 2014. <http://dx.doi.org/10.1590/S0100-46702007000300008>.
Abstract: Smectite sample from the Serra de Maicuru area (Pará state, northern Brazil, Amazon region) were used for the pillaring process with Al13. Aluminum pillared clay (Al-PILC) was characterized by XRD, SEM and EDS. the textural analysis using nitrogen adsorption-desorption isotherms. The aim of this paper is to study in how Al-PILC adsorb heavy metals. The adsorption of Cu2+, Ni2+, Co2+ ions from aqueous solution in room temperature by Al-PILC have been carried out. The Langmuir, Freundlich and Temkin adsorption isotherm models have been applied to fit the experimental data, with the first model well adjusted with r = 0.999. The one-surface Langmuir equation provided the best fit to the data. The Freundlich equation presented limitations in rises concentrations, but acceptable values of parameters were obtained (Kf and n) with the use of the three models. The parameters were used to calculate the amount adsorbed Nf, a function constant Cs.
URI: http://repositorio.ufpa.br/jspui/handle/2011/6071
ISSN: 0100-4670
Appears in Collections:Artigos Científicos - IG

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