When a pressure gradient is applied through a charged selective membrane, the transmembrane electrical potential difference, called the filtration potential, results from both the applied pressure and induced concentration difference across the membrane. In this work we investigate the electrokinetic properties relative to both active and support layers of a composite ceramic membrane close to the nanofiltration range. First, the volume charge density of the active layer is obtained by fitting a transport model to experimental rejection rates (which are controlled by the active layer only). Next, the value of the volume charge density is used to compute the theoretical filtration potential through the active layer. For sufficiently high permeate volume fluxes, the concentration difference across the active layer becomes constant, which allows assessing the membrane potential of the active layer. Experimental measurements of the overall filtration potential arising through the whole membrane are performed. The contribution of the support layer to this overall filtration potential is put in evidence. That implies that the membrane potential of the active layer cannot be deduced directly from the overall filtration potential measurements. Finally, the contribution of the support layer is singled out by subtracting the theoretical filtration potential of the active layer from the experimental filtration potential measured across the whole membrane (i.e., support + active layers). The amphoteric behavior of both layers is put in evidence, which is confirmed by electrophoretic measurements carried out with the powdered support layer and by recently reported tangential streaming potential measurements.
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Univ Claude Bernard Lyon 1, Univ Lyon, Inst Lumiere Matiere, CNRS UMR 5306, F-69622 Villeurbanne, FranceUniv Claude Bernard Lyon 1, Univ Lyon, Inst Lumiere Matiere, CNRS UMR 5306, F-69622 Villeurbanne, France
Girao, Helainne T.
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Hermet, Patrick
Masenelli, Bruno
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INSA Lyon, CNRS, UMR5270, INL, F-69622 Villeurbanne, FranceUniv Claude Bernard Lyon 1, Univ Lyon, Inst Lumiere Matiere, CNRS UMR 5306, F-69622 Villeurbanne, France
Masenelli, Bruno
Haines, Julien
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Univ Montpellier, CNRS, ICGM, ENSCM,UMR 5253, F-34095 Montpellier 5, FranceUniv Claude Bernard Lyon 1, Univ Lyon, Inst Lumiere Matiere, CNRS UMR 5306, F-69622 Villeurbanne, France
Haines, Julien
Melinon, Patrice
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Univ Claude Bernard Lyon 1, Univ Lyon, Inst Lumiere Matiere, CNRS UMR 5306, F-69622 Villeurbanne, FranceUniv Claude Bernard Lyon 1, Univ Lyon, Inst Lumiere Matiere, CNRS UMR 5306, F-69622 Villeurbanne, France
Melinon, Patrice
Machon, Denis
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Univ Claude Bernard Lyon 1, Univ Lyon, Inst Lumiere Matiere, CNRS UMR 5306, F-69622 Villeurbanne, FranceUniv Claude Bernard Lyon 1, Univ Lyon, Inst Lumiere Matiere, CNRS UMR 5306, F-69622 Villeurbanne, France
机构:
Hanyang Univ, Dept Chem, Seoul 04763, South KoreaHanyang Univ, Dept Phys, Seoul 04763, South Korea
Duong Nguyen Minh
Yuan, Ye
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Ctr High Pressure Sci & Technol Adv Res, Shanghai 201203, Peoples R ChinaHanyang Univ, Dept Phys, Seoul 04763, South Korea
Yuan, Ye
Samanta, Sudeshna
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Hanyang Univ, HYU HPSTAR CIS High Pressure Res Ctr, Seoul 04763, South Korea
Ctr High Pressure Sci & Technol Adv Res, Shanghai 201203, Peoples R ChinaHanyang Univ, Dept Phys, Seoul 04763, South Korea
Samanta, Sudeshna
Wang, Lin
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Ctr High Pressure Sci & Technol Adv Res, Shanghai 201203, Peoples R ChinaHanyang Univ, Dept Phys, Seoul 04763, South Korea
Wang, Lin
Zhang, Dongzhou
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Univ Hawaii Manoa, Partnership Extreme Crystallog, Honolulu, HI 96822 USAHanyang Univ, Dept Phys, Seoul 04763, South Korea
Zhang, Dongzhou
Hirao, Naohisa
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Japan Synchrotron Radiat Res Inst, Sayo, Hyogo 6795198, JapanHanyang Univ, Dept Phys, Seoul 04763, South Korea
Hirao, Naohisa
Kim, Jaeyong
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Hanyang Univ, Dept Phys, Seoul 04763, South Korea
Hanyang Univ, HYU HPSTAR CIS High Pressure Res Ctr, Seoul 04763, South KoreaHanyang Univ, Dept Phys, Seoul 04763, South Korea
Kim, Jaeyong
Kang, Youngjong
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h-index: 0
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Hanyang Univ, Dept Chem, Seoul 04763, South Korea
Hanyang Univ, Res Inst Nat Sci, Seoul 04763, South Korea
Hanyang Univ, Inst Nano Sci & Technol, Seoul 04763, South KoreaHanyang Univ, Dept Phys, Seoul 04763, South Korea
机构:
Univ Claude Bernard Lyon 1, Univ Lyon, Inst Lumiere Matiere, CNRS UMR 5306, F-69622 Villeurbanne, FranceUniv Claude Bernard Lyon 1, Univ Lyon, Inst Lumiere Matiere, CNRS UMR 5306, F-69622 Villeurbanne, France
Girao, Helainne T.
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h-index:
机构:
Hermet, Patrick
Masenelli, Bruno
论文数: 0引用数: 0
h-index: 0
机构:
INSA Lyon, CNRS, UMR5270, INL, F-69622 Villeurbanne, FranceUniv Claude Bernard Lyon 1, Univ Lyon, Inst Lumiere Matiere, CNRS UMR 5306, F-69622 Villeurbanne, France
Masenelli, Bruno
Haines, Julien
论文数: 0引用数: 0
h-index: 0
机构:
Univ Montpellier, CNRS, ICGM, ENSCM,UMR 5253, F-34095 Montpellier 5, FranceUniv Claude Bernard Lyon 1, Univ Lyon, Inst Lumiere Matiere, CNRS UMR 5306, F-69622 Villeurbanne, France
Haines, Julien
Melinon, Patrice
论文数: 0引用数: 0
h-index: 0
机构:
Univ Claude Bernard Lyon 1, Univ Lyon, Inst Lumiere Matiere, CNRS UMR 5306, F-69622 Villeurbanne, FranceUniv Claude Bernard Lyon 1, Univ Lyon, Inst Lumiere Matiere, CNRS UMR 5306, F-69622 Villeurbanne, France
Melinon, Patrice
Machon, Denis
论文数: 0引用数: 0
h-index: 0
机构:
Univ Claude Bernard Lyon 1, Univ Lyon, Inst Lumiere Matiere, CNRS UMR 5306, F-69622 Villeurbanne, FranceUniv Claude Bernard Lyon 1, Univ Lyon, Inst Lumiere Matiere, CNRS UMR 5306, F-69622 Villeurbanne, France
机构:
Hanyang Univ, Dept Chem, Seoul 04763, South KoreaHanyang Univ, Dept Phys, Seoul 04763, South Korea
Duong Nguyen Minh
Yuan, Ye
论文数: 0引用数: 0
h-index: 0
机构:
Ctr High Pressure Sci & Technol Adv Res, Shanghai 201203, Peoples R ChinaHanyang Univ, Dept Phys, Seoul 04763, South Korea
Yuan, Ye
Samanta, Sudeshna
论文数: 0引用数: 0
h-index: 0
机构:
Hanyang Univ, HYU HPSTAR CIS High Pressure Res Ctr, Seoul 04763, South Korea
Ctr High Pressure Sci & Technol Adv Res, Shanghai 201203, Peoples R ChinaHanyang Univ, Dept Phys, Seoul 04763, South Korea
Samanta, Sudeshna
Wang, Lin
论文数: 0引用数: 0
h-index: 0
机构:
Ctr High Pressure Sci & Technol Adv Res, Shanghai 201203, Peoples R ChinaHanyang Univ, Dept Phys, Seoul 04763, South Korea
Wang, Lin
Zhang, Dongzhou
论文数: 0引用数: 0
h-index: 0
机构:
Univ Hawaii Manoa, Partnership Extreme Crystallog, Honolulu, HI 96822 USAHanyang Univ, Dept Phys, Seoul 04763, South Korea
Zhang, Dongzhou
Hirao, Naohisa
论文数: 0引用数: 0
h-index: 0
机构:
Japan Synchrotron Radiat Res Inst, Sayo, Hyogo 6795198, JapanHanyang Univ, Dept Phys, Seoul 04763, South Korea
Hirao, Naohisa
Kim, Jaeyong
论文数: 0引用数: 0
h-index: 0
机构:
Hanyang Univ, Dept Phys, Seoul 04763, South Korea
Hanyang Univ, HYU HPSTAR CIS High Pressure Res Ctr, Seoul 04763, South KoreaHanyang Univ, Dept Phys, Seoul 04763, South Korea
Kim, Jaeyong
Kang, Youngjong
论文数: 0引用数: 0
h-index: 0
机构:
Hanyang Univ, Dept Chem, Seoul 04763, South Korea
Hanyang Univ, Res Inst Nat Sci, Seoul 04763, South Korea
Hanyang Univ, Inst Nano Sci & Technol, Seoul 04763, South KoreaHanyang Univ, Dept Phys, Seoul 04763, South Korea