Correlation between selectivity and surface charge in cobalt spinel ultrafiltration membrane
Identifieur interne : 000140 ( Maroc/Analysis ); précédent : 000139; suivant : 000141Correlation between selectivity and surface charge in cobalt spinel ultrafiltration membrane
Auteurs : S. Condom [France] ; S. Chemlal [Maroc] ; W. Chu [République populaire de Chine] ; M. Persin [France] ; A. Larbot [France]Source :
- Separation and Purification Technology [ 1383-5866 ] ; 2001.
Descripteurs français
- Pascal (Inist)
- Alumine, Aluminium Oxyde, Calcium Chlorure, Calcium Sulfate, Caractérisation, Charge superficielle, Cobalt Oxyde, Composé ternaire, Corrélation, Effet milieu, Etude expérimentale, Forme alpha, Interaction électrostatique, Matériau composite, Membrane minérale, Membrane poreuse, Membrane tubulaire, Mobilité électrophorétique, Point isoélectrique, Potentiel écoulement, Potentiel électrocinétique, Propriété surface, Préparation, Rejet, Sodium Chlorure, Sodium Sulfate, Solution électrolyte, Spinelles, Sélectivité, Séparation par membrane, Ultrafiltration, pH.
- Wicri :
- topic : Matériau composite.
English descriptors
- KwdEn :
- Alpha form, Alumina, Aluminium Oxides, Calcium Chlorides, Calcium Sulfates, Characterization, Cobalt Oxides, Cobalt spinel, Composite material, Correlation, Electrokinetic potential, Electrolyte solution, Electrophoretic mobility, Electrostatic interaction, Experimental study, Flow potential, Inorganic membrane, Isoelectric point, Medium effect, Membrane separation, Mobility, Porous membrane, Preparation, Rejection, Selectivity, Sodium Chlorides, Sodium Sulfates, Spinels, Streaming potential, Surface charge, Surface properties, Ternary compound, Tubular membrane, Ultrafiltration, pH.
Abstract
In the case of ceramic membranes with pore diameters lower than 10 nm, it was shown that the electrostatic interactions between charged particles and membrane surface charge is an important parameter for explaining the membrane selectivity. So, we have conducted several studies about cobalt spinel membranes (CoAl2O4) fired at 450 and 600°C. The pore size is about 4.3 and 5.1 nm, respectively. Firstly, studies of electrophoretic mobility and surface charge measurements were performed on powder and streaming potential determination was measured on membranes. Secondly, we have measured the rejection rate and we have determined the selectivity of salt solutions with different ionic strengths. A correlation between all the results has been established.
Url:
DOI: 10.1016/S1383-5866(01)00125-3
Affiliations:
- France, Maroc, République populaire de Chine
- Languedoc-Roussillon, Occitanie (région administrative)
- Montpellier
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Links to Exploration step
ISTEX:BD9E8883E5B353FAFDCE7553DECFD7EDBF4D6F0BLe document en format XML
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II Ecole Nationale de Chimie de Montpellier, 8 rue de l'Ecole Normale-34296 Montpellier Cedex 5</wicri:regionArea><placeName><region type="region" nuts="2">Occitanie (région administrative)</region><region type="old region" nuts="2">Languedoc-Roussillon</region><settlement type="city">Montpellier</settlement></placeName></affiliation></author></analytic><monogr></monogr><series><title level="j">Separation and Purification Technology</title><title level="j" type="abbrev">SEPPUR</title><idno type="ISSN">1383-5866</idno><imprint><publisher>ELSEVIER</publisher><date type="published" when="2001">2001</date><biblScope unit="volume">25</biblScope><biblScope unit="issue">1–3</biblScope><biblScope unit="page" from="545">545</biblScope><biblScope unit="page" to="548">548</biblScope></imprint><idno type="ISSN">1383-5866</idno></series><idno type="istex">BD9E8883E5B353FAFDCE7553DECFD7EDBF4D6F0B</idno><idno type="DOI">10.1016/S1383-5866(01)00125-3</idno><idno type="PII">S1383-5866(01)00125-3</idno></biblStruct></sourceDesc><seriesStmt><idno type="ISSN">1383-5866</idno></seriesStmt></fileDesc><profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Alpha form</term><term>Alumina</term><term>Aluminium Oxides</term><term>Calcium Chlorides</term><term>Calcium Sulfates</term><term>Characterization</term><term>Cobalt Oxides</term><term>Cobalt spinel</term><term>Composite material</term><term>Correlation</term><term>Electrokinetic potential</term><term>Electrolyte solution</term><term>Electrophoretic mobility</term><term>Electrostatic interaction</term><term>Experimental study</term><term>Flow potential</term><term>Inorganic membrane</term><term>Isoelectric point</term><term>Medium effect</term><term>Membrane separation</term><term>Mobility</term><term>Porous membrane</term><term>Preparation</term><term>Rejection</term><term>Selectivity</term><term>Sodium Chlorides</term><term>Sodium Sulfates</term><term>Spinels</term><term>Streaming potential</term><term>Surface charge</term><term>Surface properties</term><term>Ternary compound</term><term>Tubular membrane</term><term>Ultrafiltration</term><term>pH</term></keywords><keywords scheme="Pascal" xml:lang="fr"><term>Alumine</term><term>Aluminium Oxyde</term><term>Calcium Chlorure</term><term>Calcium Sulfate</term><term>Caractérisation</term><term>Charge superficielle</term><term>Cobalt Oxyde</term><term>Composé ternaire</term><term>Corrélation</term><term>Effet milieu</term><term>Etude expérimentale</term><term>Forme alpha</term><term>Interaction électrostatique</term><term>Matériau composite</term><term>Membrane minérale</term><term>Membrane poreuse</term><term>Membrane tubulaire</term><term>Mobilité électrophorétique</term><term>Point isoélectrique</term><term>Potentiel écoulement</term><term>Potentiel électrocinétique</term><term>Propriété surface</term><term>Préparation</term><term>Rejet</term><term>Sodium Chlorure</term><term>Sodium Sulfate</term><term>Solution électrolyte</term><term>Spinelles</term><term>Sélectivité</term><term>Séparation par membrane</term><term>Ultrafiltration</term><term>pH</term></keywords><keywords scheme="Wicri" type="topic" xml:lang="fr"><term>Matériau composite</term></keywords></textClass><langUsage><language ident="en">en</language></langUsage></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">In the case of ceramic membranes with pore diameters lower than 10 nm, it was shown that the electrostatic interactions between charged particles and membrane surface charge is an important parameter for explaining the membrane selectivity. So, we have conducted several studies about cobalt spinel membranes (CoAl2O4) fired at 450 and 600°C. The pore size is about 4.3 and 5.1 nm, respectively. Firstly, studies of electrophoretic mobility and surface charge measurements were performed on powder and streaming potential determination was measured on membranes. Secondly, we have measured the rejection rate and we have determined the selectivity of salt solutions with different ionic strengths. A correlation between all the results has been established.</div></front></TEI><affiliations><list><country><li>France</li><li>Maroc</li><li>République populaire de Chine</li></country><region><li>Languedoc-Roussillon</li><li>Occitanie (région administrative)</li></region><settlement><li>Montpellier</li></settlement></list><tree><country name="France"><region name="Occitanie (région administrative)"><name sortKey="Condom, S" sort="Condom, S" uniqKey="Condom S" first="S." last="Condom">S. Condom</name></region><name sortKey="Condom, S" sort="Condom, S" uniqKey="Condom S" first="S." last="Condom">S. Condom</name><name sortKey="Larbot, A" sort="Larbot, A" uniqKey="Larbot A" first="A." last="Larbot">A. Larbot</name><name sortKey="Persin, M" sort="Persin, M" uniqKey="Persin M" first="M." last="Persin">M. Persin</name></country><country name="Maroc"><noRegion><name sortKey="Chemlal, S" sort="Chemlal, S" uniqKey="Chemlal S" first="S." last="Chemlal">S. Chemlal</name></noRegion></country><country name="République populaire de Chine"><noRegion><name sortKey="Chu, W" sort="Chu, W" uniqKey="Chu W" first="W." last="Chu">W. Chu</name></noRegion></country></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
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