| 氢键对纳滤膜截留率的影响 |
| 作者：张文娟 ，张宇峰，王翔 |
| 单位： 天津工业大学中空纤维膜材料与膜过程教育部重点实验室，天津300160 |
| 关键词： 纳滤，氢键，截留率，电荷密度 |
| DOI号： |
| 分类号： TQ028.8 |
| 出版年,卷(期):页码： 2011,31(6):56-59 |
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摘要： |
| 纳滤膜与极性分子在形成氢键的过程中伴随着电子的传递现象，导致纳滤膜表面的电荷密度降低和荷电效应的减弱，从而引起截留率发生变化。本文从氢键出发，通过测试纳滤膜表面的电荷密度，探索氢键与截留率之间的关系。结果表明：随着对硝基苯酚浓度的增大，膜表面的电荷密度逐渐降低，即形成的氢键数目增多，截留率呈现下降的趋势。 |
| Hydrogen bonds may form between polar organic molecules and polyamides on the surface of the nanofiltration membrane.This course is accompanied by electronic transport phenomena. As a result, electrostatic effect and charge density on the nanofiltration membrane surface get lower.And this causes rejection rates changed. The values of surface charge density with different concentration p-nitrophenol were measured to investigate the relationship between hydrogen bond and rejection. The results show that with the increase of concentration of p-nitrophenol surface charge density of the nanofiltration membrane reduced gradually and rejection got lower. |
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基金项目： |
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作者简介： |
| 张文娟(1986～)，女，山东省泰安市人，硕士研究生，主要研究方向为膜材料与膜技术.E-mail：wenjuanvivian@126.com，Tel：15822677907。*通讯作者：张宇峰(1962～)，男，教授，博士生导师。E-mail：zyf9182@tjpu.edu.cn |
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参考文献： |
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