Correlation between selectivity and surface charge in cobalt spinel ultrafiltration membrane
Identifieur interne : 000261 ( PascalFrancis/Corpus ); précédent : 000260; suivant : 000262Correlation between selectivity and surface charge in cobalt spinel ultrafiltration membrane
Auteurs : S. Condom ; S. Chemlal ; W. Chu ; M. Persin ; A. LarbotSource :
- Separation and purification technology [ 1383-5866 ] ; 2001.
Descripteurs français
- Pascal (Inist)
- Membrane tubulaire, Membrane poreuse, Membrane minérale, Matériau composite, Alumine, Forme alpha, Composé ternaire, Spinelles, Cobalt Oxyde, Aluminium Oxyde, Préparation, Caractérisation, Propriété surface, Charge superficielle, Mobilité électrophorétique, Point isoélectrique, Potentiel électrocinétique, Potentiel écoulement, Interaction électrostatique, Séparation par membrane, Ultrafiltration, Solution électrolyte, Sodium Chlorure, Calcium Chlorure, Sodium Sulfate, Calcium Sulfate, Rejet, Sélectivité, Effet milieu, pH, Corrélation, Etude expérimentale.
English descriptors
- KwdEn :
- Alpha form, Alumina, Aluminium Oxides, Calcium Chlorides, Calcium Sulfates, Characterization, Cobalt Oxides, Composite material, Correlation, Electrokinetic potential, Electrolyte solution, Electrophoretic mobility, Electrostatic interaction, Experimental study, Flow potential, Inorganic membrane, Isoelectric point, Medium effect, Membrane separation, Porous membrane, Preparation, Rejection, Selectivity, Sodium Chlorides, Sodium Sulfates, Spinels, 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.
Notice en format standard (ISO 2709)
Pour connaître la documentation sur le format Inist Standard.
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Format Inist (serveur)
NO : | PASCAL 02-0168549 INIST |
---|---|
ET : | Correlation between selectivity and surface charge in cobalt spinel ultrafiltration membrane |
AU : | CONDOM (S.); CHEMLAL (S.); CHU (W.); PERSIN (M.); LARBOT (A.); COT (Louis) |
AF : | Laboratoire des Matérlaux et Procédés Membranaires U.M.R. 5635, E.N.S.C.M.-C.N.R.S.-U.M. II Ecole Nationale de Chimie de Montpellier, 8 rue de l'Ecole Normale/34296 Montpellier/France (1 aut., 4 aut., 5 aut.); Laboratoire des Matériaux et Protection de l'Environnement, University Sidi Mohamed Ben Abdellah, Faculty des Sciences, Dhar Mehraz BP 1796/Fès/Maroc (2 aut.); Chengdu Institute of Organic Chemistry, Chinese Academy of Sciences, Chengdu PO Box 415/Sichuan 610041/Chine (3 aut.); University of Montpellier/France (1 aut.) |
DT : | Publication en série; Congrès; Niveau analytique |
SO : | Separation and purification technology; ISSN 1383-5866; Pays-Bas; Da. 2001; Vol. 25; No. 1-3; Pp. 545-548; Bibl. 2 ref. |
LA : | Anglais |
EA : | 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. |
CC : | 001C01J09; 001D07N |
FD : | Membrane tubulaire; Membrane poreuse; Membrane minérale; Matériau composite; Alumine; Forme alpha; Composé ternaire; Spinelles; Cobalt Oxyde; Aluminium Oxyde; Préparation; Caractérisation; Propriété surface; Charge superficielle; Mobilité électrophorétique; Point isoélectrique; Potentiel électrocinétique; Potentiel écoulement; Interaction électrostatique; Séparation par membrane; Ultrafiltration; Solution électrolyte; Sodium Chlorure; Calcium Chlorure; Sodium Sulfate; Calcium Sulfate; Rejet; Sélectivité; Effet milieu; pH; Corrélation; Etude expérimentale |
ED : | Tubular membrane; Porous membrane; Inorganic membrane; Composite material; Alumina; Alpha form; Ternary compound; Spinels; Cobalt Oxides; Aluminium Oxides; Preparation; Characterization; Surface properties; Surface charge; Electrophoretic mobility; Isoelectric point; Electrokinetic potential; Flow potential; Electrostatic interaction; Membrane separation; Ultrafiltration; Electrolyte solution; Sodium Chlorides; Calcium Chlorides; Sodium Sulfates; Calcium Sulfates; Rejection; Selectivity; Medium effect; pH; Correlation; Experimental study |
SD : | Membrana tubular; Membrana porosa; Membrana inorgánica; Material compuesto; Alúmina; Forma alfa; Compuesto ternario; Espinelas; Cobalto Óxido; Aluminio Óxido; Preparación; Caracterización; Propiedad superficie; Carga superficial; Movilidad electroforética; Punto isoeléctrico; Potencial electrocinético; Potencial flujo; Interacción electrostática; Separación por membrana; Ultrafiltración; Solución electrólito; Sodio Cloruro; Calcio Cloruro; Sodio Sulfato; Calcio Sulfato; Rechazo; Selectividad; Efecto medio; pH; Correlación; Estudio experimental |
LO : | INIST-21667.354000103314790590 |
ID : | 02-0168549 |
Links to Exploration step
Pascal:02-0168549Le document en format XML
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<term>Calcium Sulfates</term>
<term>Characterization</term>
<term>Cobalt Oxides</term>
<term>Composite material</term>
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<term>Electrolyte solution</term>
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<term>Medium effect</term>
<term>Membrane separation</term>
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<term>Preparation</term>
<term>Rejection</term>
<term>Selectivity</term>
<term>Sodium Chlorides</term>
<term>Sodium Sulfates</term>
<term>Spinels</term>
<term>Surface charge</term>
<term>Surface properties</term>
<term>Ternary compound</term>
<term>Tubular membrane</term>
<term>Ultrafiltration</term>
<term>pH</term>
</keywords>
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<term>Membrane poreuse</term>
<term>Membrane minérale</term>
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<term>Forme alpha</term>
<term>Composé ternaire</term>
<term>Spinelles</term>
<term>Cobalt Oxyde</term>
<term>Aluminium Oxyde</term>
<term>Préparation</term>
<term>Caractérisation</term>
<term>Propriété surface</term>
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<term>Mobilité électrophorétique</term>
<term>Point isoélectrique</term>
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<term>Ultrafiltration</term>
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<term>Calcium Chlorure</term>
<term>Sodium Sulfate</term>
<term>Calcium Sulfate</term>
<term>Rejet</term>
<term>Sélectivité</term>
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<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 (CoAl<sub>2</sub>
O<sub>4</sub>
) 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>
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<inist><standard h6="B"><pA><fA01 i1="01" i2="1"><s0>1383-5866</s0>
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<fA06><s2>1-3</s2>
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<fA08 i1="01" i2="1" l="ENG"><s1>Correlation between selectivity and surface charge in cobalt spinel ultrafiltration membrane</s1>
</fA08>
<fA09 i1="01" i2="1" l="ENG"><s1>International conference on inorganic membranes, ICIM-6, Montpellier, France, 26-30 June 2000</s1>
</fA09>
<fA11 i1="01" i2="1"><s1>CONDOM (S.)</s1>
</fA11>
<fA11 i1="02" i2="1"><s1>CHEMLAL (S.)</s1>
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<fA12 i1="01" i2="1"><s1>COT (Louis)</s1>
<s9>ed.</s9>
</fA12>
<fA14 i1="01"><s1>Laboratoire des Matérlaux et Procédés Membranaires U.M.R. 5635, E.N.S.C.M.-C.N.R.S.-U.M. II Ecole Nationale de Chimie de Montpellier, 8 rue de l'Ecole Normale</s1>
<s2>34296 Montpellier</s2>
<s3>FRA</s3>
<sZ>1 aut.</sZ>
<sZ>4 aut.</sZ>
<sZ>5 aut.</sZ>
</fA14>
<fA14 i1="02"><s1>Laboratoire des Matériaux et Protection de l'Environnement, University Sidi Mohamed Ben Abdellah, Faculty des Sciences, Dhar Mehraz BP 1796</s1>
<s2>Fès</s2>
<s3>MAR</s3>
<sZ>2 aut.</sZ>
</fA14>
<fA14 i1="03"><s1>Chengdu Institute of Organic Chemistry, Chinese Academy of Sciences, Chengdu PO Box 415</s1>
<s2>Sichuan 610041</s2>
<s3>CHN</s3>
<sZ>3 aut.</sZ>
</fA14>
<fA15 i1="01"><s1>University of Montpellier</s1>
<s3>FRA</s3>
<sZ>1 aut.</sZ>
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<fA20><s1>545-548</s1>
</fA20>
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<fC01 i1="01" l="ENG"><s0>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 (CoAl<sub>2</sub>
O<sub>4</sub>
) 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.</s0>
</fC01>
<fC02 i1="01" i2="X"><s0>001C01J09</s0>
</fC02>
<fC02 i1="02" i2="X"><s0>001D07N</s0>
</fC02>
<fC03 i1="01" i2="X" l="FRE"><s0>Membrane tubulaire</s0>
<s5>02</s5>
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<fC03 i1="01" i2="X" l="ENG"><s0>Tubular membrane</s0>
<s5>02</s5>
</fC03>
<fC03 i1="01" i2="X" l="SPA"><s0>Membrana tubular</s0>
<s5>02</s5>
</fC03>
<fC03 i1="02" i2="X" l="FRE"><s0>Membrane poreuse</s0>
<s5>03</s5>
</fC03>
<fC03 i1="02" i2="X" l="ENG"><s0>Porous membrane</s0>
<s5>03</s5>
</fC03>
<fC03 i1="02" i2="X" l="SPA"><s0>Membrana porosa</s0>
<s5>03</s5>
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<fC03 i1="03" i2="X" l="FRE"><s0>Membrane minérale</s0>
<s5>04</s5>
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<s5>04</s5>
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<s5>04</s5>
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<s5>05</s5>
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<s5>05</s5>
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<fC03 i1="04" i2="X" l="SPA"><s0>Material compuesto</s0>
<s5>05</s5>
</fC03>
<fC03 i1="05" i2="X" l="FRE"><s0>Alumine</s0>
<s1>SUB</s1>
<s2>NK</s2>
<s5>06</s5>
</fC03>
<fC03 i1="05" i2="X" l="ENG"><s0>Alumina</s0>
<s1>SUB</s1>
<s2>NK</s2>
<s5>06</s5>
</fC03>
<fC03 i1="05" i2="X" l="SPA"><s0>Alúmina</s0>
<s1>SUB</s1>
<s2>NK</s2>
<s5>06</s5>
</fC03>
<fC03 i1="06" i2="X" l="FRE"><s0>Forme alpha</s0>
<s5>07</s5>
</fC03>
<fC03 i1="06" i2="X" l="ENG"><s0>Alpha form</s0>
<s5>07</s5>
</fC03>
<fC03 i1="06" i2="X" l="SPA"><s0>Forma alfa</s0>
<s5>07</s5>
</fC03>
<fC03 i1="07" i2="X" l="FRE"><s0>Composé ternaire</s0>
<s5>08</s5>
</fC03>
<fC03 i1="07" i2="X" l="ENG"><s0>Ternary compound</s0>
<s5>08</s5>
</fC03>
<fC03 i1="07" i2="X" l="SPA"><s0>Compuesto ternario</s0>
<s5>08</s5>
</fC03>
<fC03 i1="08" i2="X" l="FRE"><s0>Spinelles</s0>
<s5>09</s5>
</fC03>
<fC03 i1="08" i2="X" l="ENG"><s0>Spinels</s0>
<s5>09</s5>
</fC03>
<fC03 i1="08" i2="X" l="SPA"><s0>Espinelas</s0>
<s5>09</s5>
</fC03>
<fC03 i1="09" i2="X" l="FRE"><s0>Cobalt Oxyde</s0>
<s2>NC</s2>
<s2>NA</s2>
<s5>10</s5>
</fC03>
<fC03 i1="09" i2="X" l="ENG"><s0>Cobalt Oxides</s0>
<s2>NC</s2>
<s2>NA</s2>
<s5>10</s5>
</fC03>
<fC03 i1="09" i2="X" l="SPA"><s0>Cobalto Óxido</s0>
<s2>NC</s2>
<s2>NA</s2>
<s5>10</s5>
</fC03>
<fC03 i1="10" i2="X" l="FRE"><s0>Aluminium Oxyde</s0>
<s2>NC</s2>
<s2>FR</s2>
<s2>FX</s2>
<s2>NA</s2>
<s5>11</s5>
</fC03>
<fC03 i1="10" i2="X" l="ENG"><s0>Aluminium Oxides</s0>
<s2>NC</s2>
<s2>FR</s2>
<s2>FX</s2>
<s2>NA</s2>
<s5>11</s5>
</fC03>
<fC03 i1="10" i2="X" l="SPA"><s0>Aluminio Óxido</s0>
<s2>NC</s2>
<s2>FR</s2>
<s2>FX</s2>
<s2>NA</s2>
<s5>11</s5>
</fC03>
<fC03 i1="11" i2="X" l="FRE"><s0>Préparation</s0>
<s5>15</s5>
</fC03>
<fC03 i1="11" i2="X" l="ENG"><s0>Preparation</s0>
<s5>15</s5>
</fC03>
<fC03 i1="11" i2="X" l="SPA"><s0>Preparación</s0>
<s5>15</s5>
</fC03>
<fC03 i1="12" i2="X" l="FRE"><s0>Caractérisation</s0>
<s5>16</s5>
</fC03>
<fC03 i1="12" i2="X" l="ENG"><s0>Characterization</s0>
<s5>16</s5>
</fC03>
<fC03 i1="12" i2="X" l="SPA"><s0>Caracterización</s0>
<s5>16</s5>
</fC03>
<fC03 i1="13" i2="X" l="FRE"><s0>Propriété surface</s0>
<s5>17</s5>
</fC03>
<fC03 i1="13" i2="X" l="ENG"><s0>Surface properties</s0>
<s5>17</s5>
</fC03>
<fC03 i1="13" i2="X" l="SPA"><s0>Propiedad superficie</s0>
<s5>17</s5>
</fC03>
<fC03 i1="14" i2="X" l="FRE"><s0>Charge superficielle</s0>
<s5>18</s5>
</fC03>
<fC03 i1="14" i2="X" l="ENG"><s0>Surface charge</s0>
<s5>18</s5>
</fC03>
<fC03 i1="14" i2="X" l="SPA"><s0>Carga superficial</s0>
<s5>18</s5>
</fC03>
<fC03 i1="15" i2="X" l="FRE"><s0>Mobilité électrophorétique</s0>
<s5>19</s5>
</fC03>
<fC03 i1="15" i2="X" l="ENG"><s0>Electrophoretic mobility</s0>
<s5>19</s5>
</fC03>
<fC03 i1="15" i2="X" l="SPA"><s0>Movilidad electroforética</s0>
<s5>19</s5>
</fC03>
<fC03 i1="16" i2="X" l="FRE"><s0>Point isoélectrique</s0>
<s5>20</s5>
</fC03>
<fC03 i1="16" i2="X" l="ENG"><s0>Isoelectric point</s0>
<s5>20</s5>
</fC03>
<fC03 i1="16" i2="X" l="SPA"><s0>Punto isoeléctrico</s0>
<s5>20</s5>
</fC03>
<fC03 i1="17" i2="X" l="FRE"><s0>Potentiel électrocinétique</s0>
<s5>21</s5>
</fC03>
<fC03 i1="17" i2="X" l="ENG"><s0>Electrokinetic potential</s0>
<s5>21</s5>
</fC03>
<fC03 i1="17" i2="X" l="SPA"><s0>Potencial electrocinético</s0>
<s5>21</s5>
</fC03>
<fC03 i1="18" i2="X" l="FRE"><s0>Potentiel écoulement</s0>
<s5>22</s5>
</fC03>
<fC03 i1="18" i2="X" l="ENG"><s0>Flow potential</s0>
<s5>22</s5>
</fC03>
<fC03 i1="18" i2="X" l="SPA"><s0>Potencial flujo</s0>
<s5>22</s5>
</fC03>
<fC03 i1="19" i2="X" l="FRE"><s0>Interaction électrostatique</s0>
<s5>23</s5>
</fC03>
<fC03 i1="19" i2="X" l="ENG"><s0>Electrostatic interaction</s0>
<s5>23</s5>
</fC03>
<fC03 i1="19" i2="X" l="SPA"><s0>Interacción electrostática</s0>
<s5>23</s5>
</fC03>
<fC03 i1="20" i2="X" l="FRE"><s0>Séparation par membrane</s0>
<s5>24</s5>
</fC03>
<fC03 i1="20" i2="X" l="ENG"><s0>Membrane separation</s0>
<s5>24</s5>
</fC03>
<fC03 i1="20" i2="X" l="SPA"><s0>Separación por membrana</s0>
<s5>24</s5>
</fC03>
<fC03 i1="21" i2="X" l="FRE"><s0>Ultrafiltration</s0>
<s5>25</s5>
</fC03>
<fC03 i1="21" i2="X" l="ENG"><s0>Ultrafiltration</s0>
<s5>25</s5>
</fC03>
<fC03 i1="21" i2="X" l="SPA"><s0>Ultrafiltración</s0>
<s5>25</s5>
</fC03>
<fC03 i1="22" i2="X" l="FRE"><s0>Solution électrolyte</s0>
<s5>26</s5>
</fC03>
<fC03 i1="22" i2="X" l="ENG"><s0>Electrolyte solution</s0>
<s5>26</s5>
</fC03>
<fC03 i1="22" i2="X" l="SPA"><s0>Solución electrólito</s0>
<s5>26</s5>
</fC03>
<fC03 i1="23" i2="X" l="FRE"><s0>Sodium Chlorure</s0>
<s2>NC</s2>
<s2>NA</s2>
<s5>27</s5>
</fC03>
<fC03 i1="23" i2="X" l="ENG"><s0>Sodium Chlorides</s0>
<s2>NC</s2>
<s2>NA</s2>
<s5>27</s5>
</fC03>
<fC03 i1="23" i2="X" l="SPA"><s0>Sodio Cloruro</s0>
<s2>NC</s2>
<s2>NA</s2>
<s5>27</s5>
</fC03>
<fC03 i1="24" i2="X" l="FRE"><s0>Calcium Chlorure</s0>
<s2>NC</s2>
<s2>FR</s2>
<s2>NA</s2>
<s5>28</s5>
</fC03>
<fC03 i1="24" i2="X" l="ENG"><s0>Calcium Chlorides</s0>
<s2>NC</s2>
<s2>FR</s2>
<s2>NA</s2>
<s5>28</s5>
</fC03>
<fC03 i1="24" i2="X" l="SPA"><s0>Calcio Cloruro</s0>
<s2>NC</s2>
<s2>FR</s2>
<s2>NA</s2>
<s5>28</s5>
</fC03>
<fC03 i1="25" i2="X" l="FRE"><s0>Sodium Sulfate</s0>
<s2>NC</s2>
<s2>NA</s2>
<s5>29</s5>
</fC03>
<fC03 i1="25" i2="X" l="ENG"><s0>Sodium Sulfates</s0>
<s2>NC</s2>
<s2>NA</s2>
<s5>29</s5>
</fC03>
<fC03 i1="25" i2="X" l="SPA"><s0>Sodio Sulfato</s0>
<s2>NC</s2>
<s2>NA</s2>
<s5>29</s5>
</fC03>
<fC03 i1="26" i2="X" l="FRE"><s0>Calcium Sulfate</s0>
<s2>NC</s2>
<s2>FR</s2>
<s2>NA</s2>
<s5>30</s5>
</fC03>
<fC03 i1="26" i2="X" l="ENG"><s0>Calcium Sulfates</s0>
<s2>NC</s2>
<s2>FR</s2>
<s2>NA</s2>
<s5>30</s5>
</fC03>
<fC03 i1="26" i2="X" l="SPA"><s0>Calcio Sulfato</s0>
<s2>NC</s2>
<s2>FR</s2>
<s2>NA</s2>
<s5>30</s5>
</fC03>
<fC03 i1="27" i2="X" l="FRE"><s0>Rejet</s0>
<s5>62</s5>
</fC03>
<fC03 i1="27" i2="X" l="ENG"><s0>Rejection</s0>
<s5>62</s5>
</fC03>
<fC03 i1="27" i2="X" l="SPA"><s0>Rechazo</s0>
<s5>62</s5>
</fC03>
<fC03 i1="28" i2="X" l="FRE"><s0>Sélectivité</s0>
<s5>63</s5>
</fC03>
<fC03 i1="28" i2="X" l="ENG"><s0>Selectivity</s0>
<s5>63</s5>
</fC03>
<fC03 i1="28" i2="X" l="SPA"><s0>Selectividad</s0>
<s5>63</s5>
</fC03>
<fC03 i1="29" i2="X" l="FRE"><s0>Effet milieu</s0>
<s5>64</s5>
</fC03>
<fC03 i1="29" i2="X" l="ENG"><s0>Medium effect</s0>
<s5>64</s5>
</fC03>
<fC03 i1="29" i2="X" l="SPA"><s0>Efecto medio</s0>
<s5>64</s5>
</fC03>
<fC03 i1="30" i2="X" l="FRE"><s0>pH</s0>
<s5>65</s5>
</fC03>
<fC03 i1="30" i2="X" l="ENG"><s0>pH</s0>
<s5>65</s5>
</fC03>
<fC03 i1="30" i2="X" l="SPA"><s0>pH</s0>
<s5>65</s5>
</fC03>
<fC03 i1="31" i2="X" l="FRE"><s0>Corrélation</s0>
<s5>66</s5>
</fC03>
<fC03 i1="31" i2="X" l="ENG"><s0>Correlation</s0>
<s5>66</s5>
</fC03>
<fC03 i1="31" i2="X" l="SPA"><s0>Correlación</s0>
<s5>66</s5>
</fC03>
<fC03 i1="32" i2="X" l="FRE"><s0>Etude expérimentale</s0>
<s5>67</s5>
</fC03>
<fC03 i1="32" i2="X" l="ENG"><s0>Experimental study</s0>
<s5>67</s5>
</fC03>
<fC03 i1="32" i2="X" l="SPA"><s0>Estudio experimental</s0>
<s5>67</s5>
</fC03>
<fN21><s1>091</s1>
</fN21>
<fN82><s1>PSI</s1>
</fN82>
</pA>
<pR><fA30 i1="01" i2="1" l="ENG"><s1>ICIM-6: International Conference on Inorganic Membranes</s1>
<s2>6</s2>
<s3>Montpellier FRA</s3>
<s4>2000-06-26</s4>
</fA30>
</pR>
</standard>
<server><NO>PASCAL 02-0168549 INIST</NO>
<ET>Correlation between selectivity and surface charge in cobalt spinel ultrafiltration membrane</ET>
<AU>CONDOM (S.); CHEMLAL (S.); CHU (W.); PERSIN (M.); LARBOT (A.); COT (Louis)</AU>
<AF>Laboratoire des Matérlaux et Procédés Membranaires U.M.R. 5635, E.N.S.C.M.-C.N.R.S.-U.M. II Ecole Nationale de Chimie de Montpellier, 8 rue de l'Ecole Normale/34296 Montpellier/France (1 aut., 4 aut., 5 aut.); Laboratoire des Matériaux et Protection de l'Environnement, University Sidi Mohamed Ben Abdellah, Faculty des Sciences, Dhar Mehraz BP 1796/Fès/Maroc (2 aut.); Chengdu Institute of Organic Chemistry, Chinese Academy of Sciences, Chengdu PO Box 415/Sichuan 610041/Chine (3 aut.); University of Montpellier/France (1 aut.)</AF>
<DT>Publication en série; Congrès; Niveau analytique</DT>
<SO>Separation and purification technology; ISSN 1383-5866; Pays-Bas; Da. 2001; Vol. 25; No. 1-3; Pp. 545-548; Bibl. 2 ref.</SO>
<LA>Anglais</LA>
<EA>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 (CoAl<sub>2</sub>
O<sub>4</sub>
) 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.</EA>
<CC>001C01J09; 001D07N</CC>
<FD>Membrane tubulaire; Membrane poreuse; Membrane minérale; Matériau composite; Alumine; Forme alpha; Composé ternaire; Spinelles; Cobalt Oxyde; Aluminium Oxyde; Préparation; Caractérisation; Propriété surface; Charge superficielle; Mobilité électrophorétique; Point isoélectrique; Potentiel électrocinétique; Potentiel écoulement; Interaction électrostatique; Séparation par membrane; Ultrafiltration; Solution électrolyte; Sodium Chlorure; Calcium Chlorure; Sodium Sulfate; Calcium Sulfate; Rejet; Sélectivité; Effet milieu; pH; Corrélation; Etude expérimentale</FD>
<ED>Tubular membrane; Porous membrane; Inorganic membrane; Composite material; Alumina; Alpha form; Ternary compound; Spinels; Cobalt Oxides; Aluminium Oxides; Preparation; Characterization; Surface properties; Surface charge; Electrophoretic mobility; Isoelectric point; Electrokinetic potential; Flow potential; Electrostatic interaction; Membrane separation; Ultrafiltration; Electrolyte solution; Sodium Chlorides; Calcium Chlorides; Sodium Sulfates; Calcium Sulfates; Rejection; Selectivity; Medium effect; pH; Correlation; Experimental study</ED>
<SD>Membrana tubular; Membrana porosa; Membrana inorgánica; Material compuesto; Alúmina; Forma alfa; Compuesto ternario; Espinelas; Cobalto Óxido; Aluminio Óxido; Preparación; Caracterización; Propiedad superficie; Carga superficial; Movilidad electroforética; Punto isoeléctrico; Potencial electrocinético; Potencial flujo; Interacción electrostática; Separación por membrana; Ultrafiltración; Solución electrólito; Sodio Cloruro; Calcio Cloruro; Sodio Sulfato; Calcio Sulfato; Rechazo; Selectividad; Efecto medio; pH; Correlación; Estudio experimental</SD>
<LO>INIST-21667.354000103314790590</LO>
<ID>02-0168549</ID>
</server>
</inist>
</record>
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