| 不同电解质溶液及其离子浓度和pH值对改性微滤膜流动电势的影响(英文) |
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| 引用本文： | 周健儿,胡学兵,王艳香,汪永清,张小珍,ANDRE Larbot,MICHEL Persin. 不同电解质溶液及其离子浓度和pH值对改性微滤膜流动电势的影响(英文)[J]. 硅酸盐学报, 2009, 37(5) |
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| 作者姓名： | 周健儿 胡学兵 王艳香 汪永清 张小珍 ANDRE Larbot MICHEL Persin |
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| 作者单位： | 1. 景德镇陶瓷学院江西省高等学校无机膜重点实验室,江西 景德镇,333001
2. 欧洲膜研究所,法国 蒙彼利尔 34293 |
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| 基金项目： | 江西省教育厅项目，江西省自然科学基金 |
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| 摘 要： | 采用商品级α-Al2O3微滤膜.由均质共沉淀法制备了TiO2改性α-Al2O3微滤膜.研究了不同的电解质溶液、溶液的离子浓度和pH值对TiO2 改性的α-Al2O3微滤膜流动电势的影响规律.结果表明:对于NaCl溶液,膜流动电势随溶液离子浓度的增大向降低,其等电点在4.3左右:随着溶液的pH值由3增加到10.膜流动电势由值逐渐变为负值.而对于FeSO4,CaSO4,Na2SO4,NaCl和CaCl2溶液,当溶液的离子浓度固定时,膜流动 电势则随溶液的电导率的增加而降低.
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| 关 键 词： | 微滤膜 二氧化钛改性 流动电势 电解质溶液 pH值 |
INFLUENCES OF ION CONCENTRATION AND pH VALUE OF VARIOUS ELECTROLYTE SOLUTIONS ON THE STREAMING POTENTIAL OF MODIFIED MICROFILTRATION MEMBRANE |
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| ZHOU dianer,HU Xuebing,WANG Yanxiang,WANG Yongqing,ZHANG Xiaozhen,ANDRE Larbot,MICHEL Persin. INFLUENCES OF ION CONCENTRATION AND pH VALUE OF VARIOUS ELECTROLYTE SOLUTIONS ON THE STREAMING POTENTIAL OF MODIFIED MICROFILTRATION MEMBRANE[J]. Journal of The Chinese Ceramic Society, 2009, 37(5) |
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| Authors: | ZHOU dianer HU Xuebing WANG Yanxiang WANG Yongqing ZHANG Xiaozhen ANDRE Larbot MICHEL Persin |
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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: | A titanium dioxide modified α-Al2O3 microfiltration membrane was prepared by a homogeneous co-precipitation method using a commercial α-Al2O3 microfiltration membrane. The influences of the ion concentration and pH value of various electrolyte solutions on the streaming potential of the titanium dioxide-modified α-Al2O3 microfiltration membrane were studied. In NaCl solu- tion, the streaming potential of the membrane decreases with the increase of NaCl concentration. Its isoelectric point is around 4.3 and the streaming potential varies from positive to negative when the pH value of the solution is changed from 3 to 10. For the solutions of FeSO4, CaSO4, Na2SO4, NaCl and CaCl2, the streaming potentials of the membrane decrease sequentially as their equivalent conductivities increase when their concentrations are constant. |
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| Keywords: | microfiltration membrane titanium dioxide modification streaming potential electrolyte solutions pH value |
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