RETRACTED: Thermodynamics of the nickel, cobalt and zinc removal from ethanolic solution by p-aminobenzoic acid intercalated on layered calcium phosphate (Retracted article. See vol. 627, pg. 91, 2016)

被引：1

作者：

de Souza, Fernando M. ^{[1
]}

Dias, Ana Paula B. ^{[1
]}

Babeto, Beatriz ^{[1
]}

Pelisson, Scarlet ^{[1
]}

Lazarin, Angelica M. ^{[1
]}

Sernaglia, Rosana L. ^{[1
]}

Andreotti, E. I. S. ^{[1
]}

Airoldi, Claudio ^{[2
]}

机构：

[1] Univ Estadual Maringa, Dept Quim, BR-87020900 Maringa, Parana, Brazil

[2] Univ Estadual Campinas, Inst Quim, BR-13084971 Campinas, SP, Brazil

来源：

THERMOCHIMICA ACTA | 2014年 / 589卷

关键词：

Inorganic compounds; p-Aminobenzoic acid; Adsorption; Thermodynamic properties; THERMOCHEMICAL DATA; HEAVY-METALS; ADSORPTION; PRECONCENTRATION; CATIONS;

D O I：

10.1016/j.tca.2014.05.017

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

Crystalline lamellar calcium phosphate retained p-aminobenzoic acid inside its cavity without leaching. The adsorption isotherms from ethanol gave the maximum adsorption capacities of 6.44, 3.34 and 1.62 mmol g(-1) for nickel, cobalt and zinc, respectively. The energetic effects caused by metallic cation interactions were determined through calorimetric titration at the solid/liquid interface and gave a net thermal effect that enabled enthalpy and equilibrium constant calculations. Complete thermodynamic data composed of exothermic enthalpy, negative free Gibbs energy and positive entropy conformed to a set of favorable cation/basic center interactions, to indicate that these materials could be useful tools to eliminate undesirable cations from ethanolic systems. (C) 2014 Elsevier B.V. All rights reserved.

引用

页码：107 / 113

页数：7

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