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257.87 L/(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.
参考文献
| [1] | Xiangyu Wang;Chao Chen;Hulling Liu;Jun Ma .Preparation And Characterization Of Paa/pvdf Membrane-immobilized Pd/fe Nanoparticles For Dechlorination Of Trichloroacetic Acid[J].Water research: A journal of the international water association,2008(18):4656-4664. |
| [2] | 王湛,吕亚文,王淑梅,尹妮,刘淑秀,钱英.PVDF/CA共混超滤膜制备及其特性的研究[J].膜科学与技术,2002(06):4-8. |
| [3] | Xu ZH;Li L;Wu FW;Tan SJ;Zhang ZB .The application of the modified PVDF ultrafiltration membranes in further purification of Ginkgo biloba extraction[J].Journal of Membrane Science,2005(1/2):125-131. |
| [4] | 高维珏,卞晓锴,陆晓峰,施柳青,林红军.纳米TiO2对不同材料超滤膜结构与性能的影响[J].膜科学与技术,2008(06):23-29. |
| [5] | 沈红梅,俞丽芸,许振良.TiO_2溶胶改性PVDF中空纤维超滤膜的亲水化研究[J].膜科学与技术,2009(06):1-4. |
| [6] | Cao XC;Ma J;Shi XH;Ren ZJ .Effect of TiO2 nanoparticle size on the performance of PVDF membrane[J].Applied Surface Science: A Journal Devoted to the Properties of Interfaces in Relation to the Synthesis and Behaviour of Materials,2006(4):2003-2010. |
| [7] | Lu Y;Yu S L;Chai B X et al.Effect of nano-sized Al2O3-particle addition on PVDF ultrafiltration membrane performance[J].Journal of Membrane Science,2006,276(1-2):162-167. |
| [8] | Madaeni SS;Ghaemi N .Characterization of self-cleaning RO membranes coated with TiO2 particles under UV irradiation[J].Journal of Membrane Science,2007(1/2):221-233. |
| [9] | Bae TH;Tak TM .Effect of TiO2 nanoparticles on fouling mitigation of ultrafiltration membranes for activated sludge filtration[J].Journal of Membrane Science,2005(1/2):1-8. |
| [10] | Bottino A.;Capannelli G. .Poly(vinylidene fluoride) with improved functionalization for membrane production[J].Journal of Membrane Science,2000(1):23-29. |
| [11] | 吴凤清,阮圣平,李晓平,高伟,索辉,徐宝琨,赵慕愚.纳米TiO2的制备,表征及光催化性能的研究[J].功能材料,2001(01):69-71. |
| [12] | 刘青.膜技术与工业发展概况[J].青海科技,2006(06):31-34. |
| [13] | 左丹英,徐又一,张振.大孔径PVDF平板微孔膜的制备与性能研究[J].水处理技术,2008(06):8-11,15. |
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%