采用不同粒径的α-Al2O3微粒,利用浸渍涂覆的工艺方法,在粒径为10 μm的α-Al2O3载体上制备了厚度约为25μm的不同孔径的微滤膜.并以Zn(NO3)2和尿素为原料,采用共沉淀法,对上述不同孔径的微滤膜进行纳米ZnO涂层修饰改性.结果表明:采用ZnO改性后的微滤膜的水通量都得到了提高,且以粒径为0.5 μm的α-Al2O3微粒构成孔径为0.15μm的微滤膜其水通量增幅最大;当Zn(NO3)2的浓度为0.3mol/L,经二次涂覆后,改性作用最佳,微滤膜的水通量增幅最高达到46.4%.同时,文中还对纳米ZnO涂层改性作用机理进行了初步探讨.
参考文献
| [1] | 孟广耀,董强,刘杏芹,等.膜科学与技术,2003,23(4):261-268. |
| [2] | 韦奇,王大伟,张术根.功能材料,1999,30(6):601-603. |
| [3] | 周健儿,吴建青,汪永清,等.硅酸盐学报,2004,32(12):1464-1469. |
| [4] | 周健儿,吴建青,汪永清,等(ZHOU Jian-Er,et al).无机材料学报(Journal of Inorganic Materials),2006,21(3):725-730 |
| [5] | Romanos G E.Journal of the European Ceramic Society,2001,21 (2):119-126. |
| [6] | 宋振亚,吴玉程,杨晔,等.硅酸盐学报,2004,32(8):920-924. |
| [7] | 茅春浦.流体力学,第一版.上海:上海交通大学出版社.1995.122-126. |
| [8] | Prieve D C,Bike S G.Chem Eng Comm,1987,55:149-164. |
| [9] | Zhu Y Y,Kelsall G H,Spikes H A.The influence of electrochemical potentials on the friction and wear of iron and iron oxides in aqueous systems.The 48th annual meeting in Calgary,Alberta,Canada.May,1993.62-67. |
| [10] | Ptasinska Sylwia.Vacuum,2003,70 (2):403-409. |
| [11] | Burda Kvetoslava,Bader K P.FEBS Letter,2001,491(1):81-84. |
| [12] | Chaplin M F.Biophysical Chemistry,1999,83 (3):211-221. |
| [13] | 张建平,赵林,谭欣.化学通报,2004,6(4):278-283. |
| [14] | Bour Petr.Chemical Physics Letters,2002,365 (1):82-88. |
| [15] | Gad-el-Hak Mohamed.Journal of Fluids Engineering,1999,121:5-33. |
| [16] | Ho C M,Tai Y C.Annual Review of Fluid Mechanics,1998,30:579-612. |
上一张
下一张
上一张
下一张
计量
- 下载量()
- 访问量()
文章评分
- 您的评分：
-
10%
-
20%
-
30%
-
40%
-
50%