Evaluation of adsorption capacities of humic acids extracted from Algerian soil on polyaniline for application to remove pollutants such as Cd(II), Zn(II) and Ni(II) and characterization with cavity microelectrode.
Identifieur interne : 000304 ( Main/Exploration ); précédent : 000303; suivant : 000305Evaluation of adsorption capacities of humic acids extracted from Algerian soil on polyaniline for application to remove pollutants such as Cd(II), Zn(II) and Ni(II) and characterization with cavity microelectrode.
Auteurs : Achour Terbouche [Algérie] ; Chafia Ait Ramdane-Terbouche ; Didier Hauchard ; Safia DjebbarSource :
- Journal of environmental sciences (China) [ 1001-0742 ] ; 2011.
English descriptors
- KwdEn :
- MESH :
- chemical , chemistry : Aniline Compounds, Soil.
- chemical , isolation & purification : Cadmium, Nickel, Soil Pollutants, Zinc.
- chemical : Humic Substances.
- Microelectrodes.
Abstract
The adsorption capacities of new humic acids isolated from Yakouren forest (YHA) and Sahara (Tamenrasset: THA) soils (Algeria) and commercial humic acid (PFHA) on polyaniline emeraldine base (PEB) were studied at pH 6.6. Also the adsorption of heavy metals such as Cd2+, Zn2+ and Ni2+ on humic acid-polyaniline systems (HA-PEB) was investigated at the same conditions. HA-PEB compounds were characterized by scanning electron microscopy (SEM), infrared spectrometry and cavity microelectrode. In addition, batch adsorption and cavity microelectrode were used in the adsorption study of Cd2+, Zn2+ and Ni2+ on HA-PEB. To develop biocaptors of polluting metals using a cavity microelectrode modified by HA-PEB systems, the adsorption kinetic and adsorption capacity were investigated. The SEM analysis showed that the presence of humic acid affected the PEB surface and caused the formation of a granular morphology. The maximum adsorption capacities (q(max)) of PFHA, THA and YHA determined by adsorption isotherms were 91.31, 132.1 and 151.0 mg/g, respectively. Batch adsorption results showed that q(max) of Cd2+, Zn2+ and Ni2+ on HA-PEB followed the order: THA-PEB > YHA-PEB > PFHA-PEB. The voltammograms obtained with HA-PEB modified cavity microelectrode showed the appearance of new redox couples reflecting the adsorption of HA on PEB. Metal-humic acid-polyaniline voltammograms were characterized by appearance of oxidation-reduction couples or reduction wave corresponding to metal. Finally, the result may be exploited to develop a biocaptor based on the cavity microelectrode amended by THA-PEB and YHA-PEB.
PubMed: 22125901
Affiliations:
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Ait" uniqKey="Ramdane Terbouche C" first="Chafia Ait" last="Ramdane-Terbouche">Chafia Ait Ramdane-Terbouche</name></author><author><name sortKey="Hauchard, Didier" sort="Hauchard, Didier" uniqKey="Hauchard D" first="Didier" last="Hauchard">Didier Hauchard</name></author><author><name sortKey="Djebbar, Safia" sort="Djebbar, Safia" uniqKey="Djebbar S" first="Safia" last="Djebbar">Safia Djebbar</name></author></titleStmt><publicationStmt><idno type="wicri:source">PubMed</idno><date when="2011">2011</date><idno type="RBID">pubmed:22125901</idno><idno type="pmid">22125901</idno><idno type="wicri:Area/PubMed/Corpus">000091</idno><idno type="wicri:explorRef" wicri:stream="PubMed" wicri:step="Corpus" wicri:corpus="PubMed">000091</idno><idno type="wicri:Area/PubMed/Curation">000091</idno><idno type="wicri:explorRef" wicri:stream="PubMed" wicri:step="Curation">000091</idno><idno type="wicri:Area/PubMed/Checkpoint">000091</idno><idno type="wicri:explorRef" wicri:stream="Checkpoint" 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16004, Algeria. achour_t@yahoo.fr</nlm:affiliation><country xml:lang="fr">Algérie</country><wicri:regionArea>Center of Scientific Research and Technical in Physical and Chemical Analysis, Algiers 16004</wicri:regionArea><placeName><settlement type="city">Alger</settlement><region nuts="2">Wilaya d'Alger</region></placeName></affiliation></author><author><name sortKey="Ramdane Terbouche, Chafia Ait" sort="Ramdane Terbouche, Chafia Ait" uniqKey="Ramdane Terbouche C" first="Chafia Ait" last="Ramdane-Terbouche">Chafia Ait Ramdane-Terbouche</name></author><author><name sortKey="Hauchard, Didier" sort="Hauchard, Didier" uniqKey="Hauchard D" first="Didier" last="Hauchard">Didier Hauchard</name></author><author><name sortKey="Djebbar, Safia" sort="Djebbar, Safia" uniqKey="Djebbar S" first="Safia" last="Djebbar">Safia Djebbar</name></author></analytic><series><title level="j">Journal of environmental sciences (China)</title><idno type="ISSN">1001-0742</idno><imprint><date when="2011" type="published">2011</date></imprint></series></biblStruct></sourceDesc></fileDesc><profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Aniline Compounds (chemistry)</term><term>Cadmium (isolation & purification)</term><term>Humic Substances</term><term>Microelectrodes</term><term>Nickel (isolation & purification)</term><term>Soil (chemistry)</term><term>Soil Pollutants (isolation & purification)</term><term>Zinc (isolation & purification)</term></keywords><keywords scheme="MESH" type="chemical" qualifier="chemistry" xml:lang="en"><term>Aniline Compounds</term><term>Soil</term></keywords><keywords scheme="MESH" type="chemical" qualifier="isolation & purification" xml:lang="en"><term>Cadmium</term><term>Nickel</term><term>Soil Pollutants</term><term>Zinc</term></keywords><keywords scheme="MESH" type="chemical" xml:lang="en"><term>Humic Substances</term></keywords><keywords scheme="MESH" xml:lang="en"><term>Microelectrodes</term></keywords></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">The adsorption capacities of new humic acids isolated from Yakouren forest (YHA) and Sahara (Tamenrasset: THA) soils (Algeria) and commercial humic acid (PFHA) on polyaniline emeraldine base (PEB) were studied at pH 6.6. Also the adsorption of heavy metals such as Cd2+, Zn2+ and Ni2+ on humic acid-polyaniline systems (HA-PEB) was investigated at the same conditions. HA-PEB compounds were characterized by scanning electron microscopy (SEM), infrared spectrometry and cavity microelectrode. In addition, batch adsorption and cavity microelectrode were used in the adsorption study of Cd2+, Zn2+ and Ni2+ on HA-PEB. To develop biocaptors of polluting metals using a cavity microelectrode modified by HA-PEB systems, the adsorption kinetic and adsorption capacity were investigated. The SEM analysis showed that the presence of humic acid affected the PEB surface and caused the formation of a granular morphology. The maximum adsorption capacities (q(max)) of PFHA, THA and YHA determined by adsorption isotherms were 91.31, 132.1 and 151.0 mg/g, respectively. Batch adsorption results showed that q(max) of Cd2+, Zn2+ and Ni2+ on HA-PEB followed the order: THA-PEB > YHA-PEB > PFHA-PEB. The voltammograms obtained with HA-PEB modified cavity microelectrode showed the appearance of new redox couples reflecting the adsorption of HA on PEB. Metal-humic acid-polyaniline voltammograms were characterized by appearance of oxidation-reduction couples or reduction wave corresponding to metal. Finally, the result may be exploited to develop a biocaptor based on the cavity microelectrode amended by THA-PEB and YHA-PEB.</div></front></TEI><affiliations><list><country><li>Algérie</li></country><region><li>Wilaya d'Alger</li></region><settlement><li>Alger</li></settlement></list><tree><noCountry><name sortKey="Djebbar, Safia" sort="Djebbar, Safia" uniqKey="Djebbar S" first="Safia" last="Djebbar">Safia Djebbar</name><name sortKey="Hauchard, Didier" sort="Hauchard, Didier" uniqKey="Hauchard D" first="Didier" last="Hauchard">Didier Hauchard</name><name sortKey="Ramdane Terbouche, Chafia Ait" sort="Ramdane Terbouche, Chafia Ait" uniqKey="Ramdane Terbouche C" first="Chafia Ait" last="Ramdane-Terbouche">Chafia Ait Ramdane-Terbouche</name></noCountry><country name="Algérie"><region name="Wilaya d'Alger"><name sortKey="Terbouche, Achour" sort="Terbouche, Achour" uniqKey="Terbouche A" first="Achour" last="Terbouche">Achour Terbouche</name></region></country></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
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