RETRACTED: Immobilization of 5-amino-1,3,4-thiadiazole-thiol onto analogue of heulandite for divalent toxic metals removal (Retracted article. See vol. 14, pg. 1986, 2011)

被引：6

作者：

Guerra, Denis L. ^{[1
]}

Viana, Rubia R. ^{[2
]}

Airoldi, Claudio ^{[1
]}

机构：

[1] Univ Estadual Campinas, Inst Chem, BR-13084971 Campinas, SP, Brazil

[2] Univ Fed Mato Grosso, Ctr Recursos Minerais, BR-78060900 Cuiaba, MG, Brazil

来源：

INORGANIC CHEMISTRY COMMUNICATIONS | 2009年 / 12卷 / 11期

基金：

巴西圣保罗研究基金会;

关键词：

Heulandite; Toxic metals; Adsorption; Calorimetry; Thermodynamic; SORPTION; EUROPIUM(III); THORIUM(IV); ADSORPTION; MAGADIITE;

D O I：

10.1016/j.inoche.2009.08.029

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

The compound 5-amino-1,3,4-thiadiazole-thiol was anchored onto analogue of heulandite by heterogeneous route. The original (HEU) and modified heulandite (HEUATT) samples were characterized through elemental analysis and nuclear magnetic nuclei of carbon-13 and silicon-29. The ability of these materials to remove Mn(II), Zn(II) and Pb(II) from aqueous solution was followed by a series of adsorption isotherms adjusted to a Sips equation. To achieve the best adsorption conditions the influence of pH and contact time were investigated. Based on the capacity of adsorption of HEUATT to interact with metal ions, the following results were obtained 13.0, 10.1 and 7.4 mmol g(-1) for Pb(II), Zn(II) and Mn(II), respectively, reflecting a maximum adsorption order of Pb(II) > Zn(II) > Mn(II). The energetic effects caused by metal cation adsorption were determined through calorimetric titrations. (c) 2009 Published by Elsevier B.V.

引用

页码：1145 / 1149

页数：5

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