Cd(II), Zn(II) and Cu(II) bioadsorption on chemically treated waste brewery yeast biomass: The role of functional groups
The present article studies the role of functional groups from waste brewery yeast Saccharomyces cerevisiae cells in the bioadsorption of Cd2+, Zn2+ and Cu2+ ions. In order to clarify the role played by these functional groups, the brewery yeast was pretreated chemically, thereby helping to determin...
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Slovenian Chemical Society
2015-07-01
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doaj-2943b745132c4f1c90b8092d415767032020-11-25T01:55:05ZengSlovenian Chemical SocietyActa Chimica Slovenica1318-02071580-31552015-07-0162373674610.17344/acsi.2014.1265263Cd(II), Zn(II) and Cu(II) bioadsorption on chemically treated waste brewery yeast biomass: The role of functional groupsSzende TonkBoldizsár NagyAnamaria TörökCerasella IndoleanCornelia MajdikThe present article studies the role of functional groups from waste brewery yeast Saccharomyces cerevisiae cells in the bioadsorption of Cd2+, Zn2+ and Cu2+ ions. In order to clarify the role played by these functional groups, the brewery yeast was pretreated chemically, thereby helping to determine the mechanisms responsible for binding the target metals. SEM studies were performed to examine the surface microstructure of the adsorbent in pure as well as pretreated forms. The biomass was characterized using FTIR analysis, which indicated that hydroxyl, carboxyl and amid groups are present on the biomass surface. When carboxyl groups were modified by different chemical treatments, the adsorption capacity decreased dramatically, showing that carboxyl groups play a fundamental role in the bioadsorption process. The residual metallic ion concentrations were determined using an Atomic Absorption Spectrophotometer (AAS). Pseudo-first and second order kinetic models were used to describe the bioadsorption process.https://journals.matheo.si/index.php/ACSi/article/view/1265bioadsorptionheavy metalsSaccharomyces cerevisiae yeast cellschemical treatmentSEM and FTIR analysis |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Szende Tonk Boldizsár Nagy Anamaria Török Cerasella Indolean Cornelia Majdik |
spellingShingle |
Szende Tonk Boldizsár Nagy Anamaria Török Cerasella Indolean Cornelia Majdik Cd(II), Zn(II) and Cu(II) bioadsorption on chemically treated waste brewery yeast biomass: The role of functional groups Acta Chimica Slovenica bioadsorption heavy metals Saccharomyces cerevisiae yeast cells chemical treatment SEM and FTIR analysis |
author_facet |
Szende Tonk Boldizsár Nagy Anamaria Török Cerasella Indolean Cornelia Majdik |
author_sort |
Szende Tonk |
title |
Cd(II), Zn(II) and Cu(II) bioadsorption on chemically treated waste brewery yeast biomass: The role of functional groups |
title_short |
Cd(II), Zn(II) and Cu(II) bioadsorption on chemically treated waste brewery yeast biomass: The role of functional groups |
title_full |
Cd(II), Zn(II) and Cu(II) bioadsorption on chemically treated waste brewery yeast biomass: The role of functional groups |
title_fullStr |
Cd(II), Zn(II) and Cu(II) bioadsorption on chemically treated waste brewery yeast biomass: The role of functional groups |
title_full_unstemmed |
Cd(II), Zn(II) and Cu(II) bioadsorption on chemically treated waste brewery yeast biomass: The role of functional groups |
title_sort |
cd(ii), zn(ii) and cu(ii) bioadsorption on chemically treated waste brewery yeast biomass: the role of functional groups |
publisher |
Slovenian Chemical Society |
series |
Acta Chimica Slovenica |
issn |
1318-0207 1580-3155 |
publishDate |
2015-07-01 |
description |
The present article studies the role of functional groups from waste brewery yeast Saccharomyces cerevisiae cells in the bioadsorption of Cd2+, Zn2+ and Cu2+ ions. In order to clarify the role played by these functional groups, the brewery yeast was pretreated chemically, thereby helping to determine the mechanisms responsible for binding the target metals. SEM studies were performed to examine the surface microstructure of the adsorbent in pure as well as pretreated forms. The biomass was characterized using FTIR analysis, which indicated that hydroxyl, carboxyl and amid groups are present on the biomass surface. When carboxyl groups were modified by different chemical treatments, the adsorption capacity decreased dramatically, showing that carboxyl groups play a fundamental role in the bioadsorption process. The residual metallic ion concentrations were determined using an Atomic Absorption Spectrophotometer (AAS). Pseudo-first and second order kinetic models were used to describe the bioadsorption process. |
topic |
bioadsorption heavy metals Saccharomyces cerevisiae yeast cells chemical treatment SEM and FTIR analysis |
url |
https://journals.matheo.si/index.php/ACSi/article/view/1265 |
work_keys_str_mv |
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