Artículos de revistas
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 [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]
Registro en:
Quimica Nova. , v. 31, n. 2, p. 353 - 359, 2008.
1004042
10.1590/S0100-40422008000200031
2-s2.0-42149130921
Autor
Guerra D.L.
Airoldi C.
Lemos V.P.
Angelica R.S.
Viana R.R.
Institución
Resumen
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. 31 2 353 359 Airoldi, C. Em Química de coordenação fundamentos e atualidades Farias, R. F., ed. Átomo: São Paulo, 2005, cap. 1Odendahl, S., (1994) Pulp & Paper Canada, 95, p. 30 Buser, H.R., (1995) Environ. Sci. 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