Effect of TiO2 nanoparticle size on the performance of PVDF membrane
Effect of TiO2 nanoparticle size on the performance of PVDF membrane
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DOI：
10.1016/j.apsusc.2006.03.090
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发表时间：
2006-12-15
影响因子：
6.7
通讯作者：
Ren, Zhijun
中科院分区：
文献类型：
--
作者：
Cao, Xiaochun;Ma, Jun;Ren, Zhijun
对纯PVDF膜和不同尺寸纳米TiO2颗粒的PVDF复合膜的性能和形貌进行了比较。渗透率和仪器分析结果表明，纳米尺寸明显影响PVDF膜的性能和结构。较小的纳米颗粒可以更显着地提高PVDF膜的防污性能。用原子力显微镜（AFM）、扫描电子显微镜（SEM）观察膜的表面和横截面。具有较小纳米颗粒的TiO2/PVDF膜的表面平均孔径较小，膜内部的孔径较多。 X射线衍射（XRD）实验还表明，较小的TiO2纳米粒子对PVDF分子的结晶作用更强。 (c) 2006 Elsevier B.V. 保留所有权利。
The comparison of the performance and morphology was carried out between neat PVDF membrane and PVDF composite membranes with nanosized TiO2 particles of different size. The results of permeability and instrumental analysis illustrated that nanometer size obviously affected the performance and structure of the PVDF membranes. The smaller nanoparticles could improve the antifouling property of the PVDF membrane more remarkably. The surface and cross-section of the membranes were observed with an atomic force microscopy (AFM), a scanning electron microscope (SEM). The TiO2/PVDF membrane with smaller nanoparticles had smaller mean pore size on its surface and more apertures inside the membrane. X-ray diffraction (XRD) experiments also suggested that smaller TiO2 nanoparticles had stronger effect on the crystallization of PVDF molecules. (c) 2006 Elsevier B.V. All rights reserved.