Heavy metal removal from aqueous solution by Pseudevernia furfuracea (L.) Zopf

被引：9

作者：

Ates, Ayten

Yildiz, Atilla

Yildiz, Nuray ^{[1
]}

Calimli, Ayla

机构：

[1] Ankara Univ, Fac Engn, Dept Chem Engn, TR-06100 Ankara, Turkey

[2] Cumhuriyet Univ, Fac Engn, Dept Chem Engn, TR-58140 Sivas, Turkey

[3] Ankara Univ, Fac Sci, Dept Biol, TR-06100 Ankara, Turkey

来源：

ANNALI DI CHIMICA | 2007年 / 97卷 / 5-6期

关键词：

D O I：

10.1002/adic.200790023

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

The present study was carried out in a batch system using a lichen (Pseudevernia furfuracea (L.) Zopf) for the sorption of nickel(II) and copper(II) ions from water. Particularly, the effect of pH, contact time and temperature were considered. Pseudevernia furfuracea exhibited nickel(II) and copper(II) uptake of 49.87.and 60.83 mg/g at an initial pH of 4 and 5-6 at 35 degrees C respectively. Both the Freundlich and Langmuir adsorption models were suitable for describing the biosorption of nickel(II) and copper(II) by the biosorbent. Biosorption showed pseudo first order rate kinetics for nickel and copper ions. Using the equilibrium constant values obtained at 25 and 35 T, the thermodynamics properties of the biosorption (Delta G degrees, Delta H degrees and Delta S degrees) were determined. The biosorption of nickel(II) and copper(II) onto Pseudevermajurfuracea was found to be endothermic.

引用

页码：385 / 393

页数：9

共 37 条

[11] COMPARISONS BETWEEN THE METAL CONTENT OF A TRANSPLANTED LICHEN BEFORE AND AFTER THE START-UP OF A COAL-FIRED POWER-STATION IN ISRAEL [J].