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| TiO_2对PVDF超滤膜结构与性能的影响 | |
| 引用本文： | 孙秀丽,李伟英,文晨. TiO_2对PVDF超滤膜结构与性能的影响[J]. 膜科学与技术, 2011, 31(4) |
| 作者姓名： | 孙秀丽 李伟英 文晨 |
| 作者单位： | 1. 同济大学环境科学与工程学院,上海,200092 2. 同济大学长江水环境教育部重点实验室,上海,200092 3. 天津工业大学环境与化学工程学院,天津,300160 |
| 基金项目： | 苏州市重点科技支撑项目(ZS0801); 国家水体污染控制与治理科技重大专项课题(2008ZX07421-006) |
| 摘 要： | 实验制备了两种TiO2分散液,并将其填充到聚偏氟乙烯(PVDF)铸膜液中制得PVDF/TiO2杂化膜.考察了分散液填充比率对杂化膜的通量、截留率、接触角等性能的影响,用X射线衍射(XRD)和扫描电镜(SEM)等技术表征杂化膜的微观结构.结果表明,两种TiO2分散液均能不同程度地改善膜的性质,且当分散液的填充比率为10%时,杂化膜的各项性能稳定,表面接触角得到有效改良,对牛血清蛋白(BSA)截留率改变较小,杂化膜纯水通量显著提高,最高水通量可达257.87L/(m2.h).XRD和SEM分析的结果表明,TiO2分散液的加入使其羟基数有不同程度的增加,杂化膜表面更加平滑,亲水性改善. |
| 关 键 词： | TiO2分散液 聚偏氟乙烯 不着抗污染性能 |
Effects of TiO_2 nanoparticles on the performance of PVDF ultrafiltration membrane |
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| SUN Xiuli,LI Wei ying,WEN Chen. Effects of TiO_2 nanoparticles on the performance of PVDF ultrafiltration membrane[J]. Membrane Science and Technology, 2011, 31(4) | |
| Authors: | SUN Xiuli LI Wei ying WEN Chen |
| Affiliation: | SUN Xiuli1,LI Weiying2,WEN Chen3 (1.Environmental Science and Engineering School,Tongji University,Shanghai 200092,China,2.Key Laboratory of Yangtze River Water Environment,Ministry of education,3.Environmental and Chemical Engineering School,Tianjin Polytechnic University,300160,China) |
| Abstract: | Two kinds of nano-titanium dioxide(TiO2) sol were made,and different poly(vinylidene fluoride)(PVDF)/TiO2 hybrid membranes were prepared with different doses of them as the modifier.The tests,such as membrane flux,retention rate and contact angle,were carried out in order to verify the effects of various kinds and concentrations of nano-TiO2 sol on the PVDF/TiO2 hybrid membrane properties.Some membranes of good properties were then chosen,and the structure and micro-morphology of them were characterized by ... |
| Keywords: | PVDF membrane nano-TiO2 sol anti-fouling performance |
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