Sorption of Heavy Metal on Natural Clay

被引：0

作者：

Stefan, Mircea ^{[1
]}

Bors, Adriana ^{[2
]}

Stefan, Daniela Simina ^{[3
]}

Radu, Ionut Alexandru Savu ^{[3
]}

Marinescu, Cicerone ^{[4
]}

机构：

[1] Univ Titu Maiorescu, Fac Pharm, 22 Dambovnicului St, Bucharest 040441, Romania

[2] Natl Inst Res & Dev Environm Protect INCDPM, 294 Splaiul Independentei, Bucharest 060031, Romania

[3] Univ Politehn Bucuresti, Fac Appl Chem & Mat Sci, Dept Analyt Chem & Environm Engn, 1-7 Polizu St, Bucharest 011061, Romania

[4] Univ Pitesti, 1 Tg Din Vale, Pitesti 110040, Romania

来源：

REVISTA DE CHIMIE | 2017年 / 68卷 / 12期

关键词：

sorption; heavy metals; montmorillonite; Langmuir equation; NA-MONTMORILLONITE; AQUEOUS-SOLUTIONS; CADMIUM SORPTION; ADSORPTION; ALUMINUM; BIOSORPTION; BIOMASS; OXIDES; ZINC; ZN;

D O I：

暂无

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Sorption of heavy metals on Na-montmorillonite was studied as a function of solution pH and different concentrations of background electrolyte and also a function of added metal ion at constant pH. Equilibrium isotherms have been measured and analyzed using a Langmuir isotherm model. The metal ions were predominantly adsorbed on the permanent charge sites in a easily replaceable state. There was also evident a substantial involvement of the hydroxyl groups on the edges of Na-montmorillonite in specific adsorption of the cations especially at higher pH.

引用

页码：2804 / 2807

页数：4

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