氧化石墨烯含量对聚砜超滤膜结构和性能的影响 |
作者:金文杰1,胡朝武1,李丽华1,杨朋伟1,丛冰冰2 |
单位: 1.辽宁科技大学化工学院环境工程系,鞍山 114051;2.喀左城市污水处理厂,朝阳 122300 |
关键词: 浸没沉淀相转化;聚砜;复合超滤膜;抗污染性;抗菌性 |
DOI号: |
分类号: X703.1,TQ028.8 |
出版年,卷(期):页码: 2015,35(4):20-24 |
摘要: |
以氧化石墨烯和聚砜作为前驱物,采用浸没沉淀相转化方法制备氧化石墨烯/聚砜复合超滤膜。通过扫描电镜、傅里叶变换红外光谱仪、接触角测量仪分别对复合膜的断面结构、官能团及膜表面的接触角进行表征和测定;使用超滤杯测定复合膜的水通量及通量恢复率;同时测试了复合膜的抗菌性。结果表明:当氧化石墨烯含量为2%时,复合膜的指状孔结构明显而且较粗,水通量达到峰值242.43L/m2?h;此时复合膜的亲水性和抗污染性显著提高,复合膜的抗菌性能也得到改善。 |
Using graphene oxide and polysulfone as precursors, polysulfone/graphene oxide composite ultrafiltration membrane was prepared by the method of immersion precipitation phase inversion. The cross-section structure, functional groups and contact angle of the membrane were respectively characterized by Scanning electron microscope, Fourier transform infrared spectrometer and contact angle measurement instrument. And other performance index of the membrane such as water flux and flux recovery ratio were characterized by ultrafiltration installation. Antibacterial property was also tested. The results revealed that finger-like pore structure was clear and the water flux reached the peak 242.43L/m2?h when the content of graphene oxide was 2%. Meanwhile, hydrophilicity and anti-fouling performance of the composite membrane were significantly enhanced. The antibacterial property was also improved. |
基金项目: |
辽宁科技大学重点科技创新基金(2012CX01) |
作者简介: |
金文杰(1967—),女,辽宁鞍山人,硕士,教授,主要从事污染治理技术和资源化利用方面的研究工作。 |
参考文献: |
[1]Shen J, Li D, Jiang F, et al. Purification and concentration of collagen by charged ultrafiltration membrane of hydrophilic poly acrylonitrile blend[J]. Separation and Purification Technology, 2009, 66(2): 257-262. [2]王云, 李乃旭, 程玲, 等. 纳米二氧化硅粒子对醋酸纤维素超滤膜结构的影响[J]. 精细石油化工进展, 2011, 12(3): 35-37. [3]邱恒, 薛罡. 纳米二氧化钛改性聚醚砜超滤膜[J]. 化工环保, 2009, 29(6): 554-558. [4]Zhao C, Xu X, Chen J, et al. Effect of graphene oxide concentration on the morphologies and antifouling properties of PVDF ultrafiltration membranes[J]. Journal of Environmental Chemical Engineering, 2013, 1(3): 349-354. [5]Wang Z, Yu H, Xia J, et al. Novel GO-blended PVDF ultrafiltration membranes[J]. Desalination, 2012,1(299): 50-54. [6]高翔宇, 贺高红, 粱健. 多壁碳纳米管 (MWNT)/聚丙烯腈 (PAN) 共混复合膜的制备及性能研究[J]. 膜科学与技术, 2013, 33(3): 17-22. [7]湛含辉, 曹江. 不同性能的双亲性纳米 TiO_2 复合粒子改性聚偏氟乙烯超滤膜结构与性能的研究[J]. 功能材料, 2011, 42(1): 91-95. [8]芦艳, 赵国发, 张广洲, 等. 相转化法制备 PVDF 超滤膜及其亲水化改性研究进展[J]. 塑料工业, 2011, 39(10): 17-21. [9]雷晓慧, 丁雪佳, 王林生, 等. 相转化法制备聚砜膜研究进展[J]. 中国塑料, 2013 (1): 13-16. [10]肖登荣, 张敏敏, 张凯舟, 等. 相转化法聚砜膜的结构调控与亲水化改性研究综述[J]. 塑料工业, 2014, 42(5):1-6. [11]Hummers Jr W S, Offeman R E. Preparation of graphitic oxide[J]. Journal of the American Chemical Society, 1958, 80(6): 1339-1339. [12]傅玲, 刘洪波, 邹艳红, 等. Hummers 法制备氧化石墨时影响氧化程度的工艺因素研究[J]. 炭素, 2006 ,1(4): 10-14. [13]王雪, 徐佳, 蒋钰烨, 等. 新型抑菌聚砜超滤膜的制备及性能[J]. 高等学校化学学报, 2012, 33(9): 2129-2134. [14]L. Wang, D. M. Xing, H. M. Zhang, MWCNTs reinforced Nafion® membrane prepared by a novel solution-cast method for PEMFC, Journal of Power Sources, 2008,1( 176):270-275 |
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