| ZrO_2/堇青石微滤膜表面荷电性能及其对膜通量的影响(英文) |
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| 引用本文： | 周健儿,汪永清,张小珍,LARBOT André,PERSIN Michel.ZrO_2/堇青石微滤膜表面荷电性能及其对膜通量的影响(英文)[J].硅酸盐学报,2009,37(2). |
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| 作者姓名： | 周健儿 汪永清 张小珍 LARBOT André PERSIN Michel |
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| 作者单位： | 1. 景德镇陶瓷学院,江西省高校无机膜重点实验室,江西,景德镇,333001
2. Institut Ettropéen des Membranes,UMR 5635 CNRS ENSCM UMII,1919 Route de Meade 34293 Montpellier Cedex 5,France |
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| 摘 要： | 采用挤压成型和流铸法制备了ZrO2/堇青石微滤膜,并通过错流方式下的流动电势测量对所制备微滤膜的表面荷电性能进行了表征.研究了过滤介质溶液的pH值、电解质种类和浓度等对膜的表面荷电性能和渗透通量的影响.结果表明:膜流动电势大小取决于过滤溶液的pH值、电解质种类和浓度.溶液浓度为10-3 mol/L时,膜等电点随着电解质种类改变而在4.2和5.4之间变化.膜的流动电势随NaCl溶液浓度提高而逐渐减小,但等电点不变;而CaCl2和Na2SO4溶液中的Ca2+和SO42-/在膜孔表面存在特定吸附,导致膜的等电点和表面净电荷符号改变.制备的ZrO2/堇青石微滤膜在等电点附近出现最大离子溶液过滤通量.
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| 关 键 词： | 氧化锆 董青石 微滤膜 流动电势 渗透通量 |
ELECTROKINETIC PROPERTIES OF ZIRCONIA/CORDIERITE MICROFILTRATION MEMBRANE AND ITS INFLUENCE ON PERMEATE FLUX |
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| ZHOU Jianer,WANG Yongqing,ZHANG Xiaozhen,LARBOT André,PERSIN Michel.ELECTROKINETIC PROPERTIES OF ZIRCONIA/CORDIERITE MICROFILTRATION MEMBRANE AND ITS INFLUENCE ON PERMEATE FLUX[J].Journal of The Chinese Ceramic Society,2009,37(2). |
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| Authors: | ZHOU Jianer WANG Yongqing ZHANG Xiaozhen LARBOT André PERSIN Michel |
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| Affiliation: | 1.University Key Laboratory for Inorganic Membrane in Jiangxi Province;Jingdezhen Ceramic Institute;Jingdezhen 333001;Jiangxi;China;2.Institut Européen des Membranes;UMR 5635 CNRS ENSCM UMII;1919 Route de Mende;34293 Montpellier Cedex 5;France |
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| Abstract: | Zirconia/cordierite microfiltration membrane was prepared by extrusion in combination with slip casting.The electroki-netic properties of the as-prepared membrane were characterized by the streaming potential measurements in tangential microfiltration mode.The influences of pH value,electrolyte species and concentrations of filtered solutions on the electrokinetic properties and permeate flux were investigated.The results show that the streaming potentials are dependent on the pH value,the type of electroly... |
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| Keywords: | zircoaia cordierite microfiltration membrane streaming potential permeate flux |
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