Nickel-iron layered double hydroxide (LDH): Textural properties upon hydrothermal treatments and application on dye sorption
Identifieur interne : 000503 ( Main/Exploration ); précédent : 000502; suivant : 000504Nickel-iron layered double hydroxide (LDH): Textural properties upon hydrothermal treatments and application on dye sorption
Auteurs : Fatiha Boukraa Djellal Saiah [Algérie] ; Bao-Lian Su [Belgique] ; Nourredine Bettahar [Algérie]Source :
- Journal of hazardous materials [ 0304-3894 ] ; 2009.
Descripteurs français
- Pascal (Inist)
- Wicri :
- topic : Colorant, Industrie textile.
English descriptors
- KwdEn :
Abstract
NiFeCO3 hydrotalcites with Ni/Fe molar ratio of3 were synthesized by co-precipitation method at constant pH, followed by hydrothermal treatment at various temperatures 85-180°C for 3-360 h. The obtained materials were characterized by XRD analysis, FT-IR spectroscopy, SEM and TEM microscopy, TGA and BET techniques. The resulting materials were found to be similar to the hydrotalcite with a well-defined hexagonal morphology of crystallites. The hydrothermal treatment and aging time increases the platelet sizes and decreases the surface area. XRD analysis showed the formation of sharper and intense peaks, which might indicate the larger crystallites size of LDH as well as higher crystallinity. Furthermore, textural studies revealed influence of aging time and temperature on the properties of the crystalline phase. The prolonged time tends to form additional products, identified as NiFe2O4 spinel and NiO nickel oxide. The effect of hydrothermal treatment temperature on the kinetics of dye removal has been explored. It was found that the percentage color removal increases with increasing hydrothermal treatment temperature up to 140 °C and aging time up to 4 days. Furthermore, the color removal decreases with increasing hydrothermal treatment temperature up to 140-180°C and prolonged aging time.
Affiliations:
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wicri:level="3"><inist:fA14 i1="02"><s1>Laboratory of Inorganics Materials Chemistry (CMI), University of Namur (FUNDP), 61 Rue de Bruxelles</s1><s2>5000 Namur</s2><s3>BEL</s3><sZ>2 aut.</sZ></inist:fA14><country>Belgique</country><placeName><region type="province" nuts="2">Province de Namur</region><settlement type="city">Namur</settlement></placeName></affiliation></author><author><name sortKey="Bettahar, Nourredine" sort="Bettahar, Nourredine" uniqKey="Bettahar N" first="Nourredine" last="Bettahar">Nourredine Bettahar</name><affiliation wicri:level="1"><inist:fA14 i1="01"><s1>Laboratory of Physics-Chemistry of Materials (L.P.C.M): Catalyse and Environment, University of Sciences and Technology ofORAN "Mohamed Boudiaf" (USTO.MB), B.P. 1505 El Menaouer</s1><s2>Oran 31000</s2><s3>DZA</s3><sZ>1 aut.</sZ><sZ>3 aut.</sZ></inist:fA14><country>Algérie</country><placeName><settlement type="city">Oran</settlement><region nuts="2">Wilaya 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sorption</title><author><name sortKey="Djellal Saiah, Fatiha Boukraa" sort="Djellal Saiah, Fatiha Boukraa" uniqKey="Djellal Saiah F" first="Fatiha Boukraa" last="Djellal Saiah">Fatiha Boukraa Djellal Saiah</name><affiliation wicri:level="1"><inist:fA14 i1="01"><s1>Laboratory of Physics-Chemistry of Materials (L.P.C.M): Catalyse and Environment, University of Sciences and Technology ofORAN "Mohamed Boudiaf" (USTO.MB), B.P. 1505 El Menaouer</s1><s2>Oran 31000</s2><s3>DZA</s3><sZ>1 aut.</sZ><sZ>3 aut.</sZ></inist:fA14><country>Algérie</country><placeName><settlement type="city">Oran</settlement><region nuts="2">Wilaya d'Oran</region></placeName></affiliation></author><author><name sortKey="Su, Bao Lian" sort="Su, Bao Lian" uniqKey="Su B" first="Bao-Lian" last="Su">Bao-Lian Su</name><affiliation wicri:level="3"><inist:fA14 i1="02"><s1>Laboratory of Inorganics Materials Chemistry (CMI), University of Namur (FUNDP), 61 Rue de Bruxelles</s1><s2>5000 Namur</s2><s3>BEL</s3><sZ>2 aut.</sZ></inist:fA14><country>Belgique</country><placeName><region type="province" nuts="2">Province de Namur</region><settlement type="city">Namur</settlement></placeName></affiliation></author><author><name sortKey="Bettahar, Nourredine" sort="Bettahar, Nourredine" uniqKey="Bettahar N" first="Nourredine" last="Bettahar">Nourredine Bettahar</name><affiliation wicri:level="1"><inist:fA14 i1="01"><s1>Laboratory of Physics-Chemistry of Materials (L.P.C.M): Catalyse and Environment, University of Sciences and Technology ofORAN "Mohamed Boudiaf" (USTO.MB), B.P. 1505 El Menaouer</s1><s2>Oran 31000</s2><s3>DZA</s3><sZ>1 aut.</sZ><sZ>3 aut.</sZ></inist:fA14><country>Algérie</country><placeName><settlement type="city">Oran</settlement><region nuts="2">Wilaya d'Oran</region></placeName></affiliation></author></analytic><series><title level="j" type="main">Journal of hazardous materials</title><title level="j" type="abbreviated">J. hazard. mater.</title><idno type="ISSN">0304-3894</idno><imprint><date when="2009">2009</date></imprint></series></biblStruct></sourceDesc><seriesStmt><title level="j" type="main">Journal of hazardous materials</title><title level="j" type="abbreviated">J. hazard. mater.</title><idno type="ISSN">0304-3894</idno></seriesStmt></fileDesc><profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Adsorption</term><term>Crystallinity</term><term>Discoloration</term><term>Dyes</term><term>Hydrothermal treatment</term><term>Kinetics</term><term>Morphology</term><term>Physicochemical purification</term><term>Scanning electron microscopy</term><term>Sorption</term><term>Surface area</term><term>Textile industry</term><term>Thermogravimetry</term><term>Transmission electron microscopy</term><term>pH</term></keywords><keywords scheme="Pascal" xml:lang="fr"><term>Traitement hydrothermal</term><term>Colorant</term><term>Sorption</term><term>pH</term><term>Microscopie électronique balayage</term><term>Microscopie électronique transmission</term><term>Thermogravimétrie</term><term>Morphologie</term><term>Aire superficielle</term><term>Cristallinité</term><term>Cinétique</term><term>Décoloration</term><term>Industrie textile</term><term>Adsorption</term><term>Epuration physicochimique</term></keywords><keywords scheme="Wicri" type="topic" xml:lang="fr"><term>Colorant</term><term>Industrie textile</term></keywords></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">NiFeCO<sub>3</sub> hydrotalcites with Ni/Fe molar ratio of3 were synthesized by co-precipitation method at constant pH, followed by hydrothermal treatment at various temperatures 85-180°C for 3-360 h. The obtained materials were characterized by XRD analysis, FT-IR spectroscopy, SEM and TEM microscopy, TGA and BET techniques. The resulting materials were found to be similar to the hydrotalcite with a well-defined hexagonal morphology of crystallites. The hydrothermal treatment and aging time increases the platelet sizes and decreases the surface area. XRD analysis showed the formation of sharper and intense peaks, which might indicate the larger crystallites size of LDH as well as higher crystallinity. Furthermore, textural studies revealed influence of aging time and temperature on the properties of the crystalline phase. The prolonged time tends to form additional products, identified as NiFe<sub>2</sub>O<sub>4</sub> spinel and NiO nickel oxide. The effect of hydrothermal treatment temperature on the kinetics of dye removal has been explored. It was found that the percentage color removal increases with increasing hydrothermal treatment temperature up to 140 °C and aging time up to 4 days. Furthermore, the color removal decreases with increasing hydrothermal treatment temperature up to 140-180°C and prolonged aging time.</div></front></TEI><affiliations><list><country><li>Algérie</li><li>Belgique</li></country><region><li>Province de Namur</li><li>Wilaya d'Oran</li></region><settlement><li>Namur</li><li>Oran</li></settlement></list><tree><country name="Algérie"><region name="Wilaya d'Oran"><name sortKey="Djellal Saiah, Fatiha Boukraa" sort="Djellal Saiah, Fatiha Boukraa" uniqKey="Djellal Saiah F" first="Fatiha Boukraa" last="Djellal Saiah">Fatiha Boukraa Djellal Saiah</name></region><name sortKey="Bettahar, Nourredine" sort="Bettahar, Nourredine" uniqKey="Bettahar N" first="Nourredine" last="Bettahar">Nourredine Bettahar</name></country><country name="Belgique"><region name="Province de Namur"><name sortKey="Su, Bao Lian" sort="Su, Bao Lian" uniqKey="Su B" first="Bao-Lian" last="Su">Bao-Lian Su</name></region></country></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
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