疏水性silicalite-1/zein复合担载膜的制备及醇/水分离性能评价 |
作者:马亚鲁1? 李宇婷2 王丰2 王鹏2 李国书1 方武成1 |
单位: 1天津大学理学院; 2天津大学化工学院,天津300072 |
关键词: silicalite-1/zein复合膜;表面改性;渗透蒸发;乙醇/水分离 |
DOI号: |
分类号: TQ028.8 |
出版年,卷(期):页码: 2013,33(4):42-46 |
摘要: |
采用旋涂技术在多孔氧化铝基片上制备silicalite-1/zein疏水性复合膜,为增强silicalite-1粒子的疏水性和在zein基液中的均匀分散性,采用六甲基二硅氮烷的表面改性技术和球磨分散工艺,制备结构均一、厚度在10μm左右复合担载膜。渗透蒸发实验表明:silicalite-1/zein疏水性复合膜在303K 和313K下分别对含3%(质量分数,下同)和5%乙醇的水溶液进行乙醇组分的提浓,其总的渗透通量和乙醇分离因子分别为0.73~0.82 kg.m-2.h-1和4.5 ~ 8.7。 |
Hydrophobic silicalite-1/zein composite membrane supported on a porous alumina tablet was prepared by spin coating process. Surface modification by hexamethyldisilazane and ball-milling processes could improve the dispersivity and homogeneity of silicalite-1 particles in zein ethanol solution. The homogeneous silicalite-1/zein composite membrane has an average thickness of 10μm. The pervaporation experiments show that silicalite-1/zein composite membrane can effectively concentrate ethanol from 3% and 5% ( mass fraction ) ethanol feed by pervaporation process. The total permeation fluxes and separation factors of ethanol at 303K and 313K are from 0.73 to 0.82kg.m-2.h-1 and from 4.5 to 8.7, respectively. |
基金项目: |
国家自然科学基金(50972103);教育部留学回国人员科研启动基金(2009-1001);国家级大学生创新训练项目 |
作者简介: |
马亚鲁(1969-),女,河北省故城县人,博士,副教授,从事功能性复合膜材料的设计、制备与应用研究。?联系人 |
参考文献: |
[1] Oh Y K, Flanagan D R. Diffusional properties of zein membranes and matrices [J]. Drug Dev Ind Pharm, 2010, 36(5): 497-507 [2] Shukla R, Cheryan M. Zein: the industrial protein from corn [J]. Ind Crop Prod, 2001, 13(3): 171-192 [3] Anderson T J, Lamsal B P. Zein extraction from corn, corn products, and coproducts and modification for various applications:A review [J]. Cereal Chem, 2011, 88(2): 159-173 [4] Argos P, Pedersen K, Marks M D, et al. A Structural Model for Maize Zein Proteins [J]. J Biol Chem, 1982, 257(17): 9984-9990 [5] MaHam A, Tang Z W, Wu H, et al. Protein-based nanomedicine platforms for drug delivery [J]. Small, 2009, 5(15): 1706-1721 [6] Nomura M, Yamaguchi T, Nakao S. Ethanol / water transport through silicalite membranes [J]. J Membrane Sci, 1998, 144(1-2): 161-171 [7] Sano T, Hasegawa M, Ejiri S. Improvement of the pervaporation performance of silicalite membranes by modification with a silane coupling reagent [J]. Microporous Mater, 1995, 5(3) : 179-184 [8] 马亚鲁,刘芬,马媛媛 等. 多步组装合成介孔二氧化硅担载膜 [J]. 硅酸盐学报,2010, 38(2): 227-233 [9] Dobrak A, Figoli A, Chovau S, et al. Performance of PDMS membranes in pervaporation: Effect of silicalite fillers and comparison with SBS membranes [J]. J Colloid Interface Sci, 2010, 346(1): 254-264 |
服务与反馈: |
【文章下载】【加入收藏】 |
《膜科学与技术》编辑部 地址:北京市朝阳区北三环东路19号蓝星大厦 邮政编码:100029 电话:010-64426130/64433466 传真:010-80485372邮箱:mkxyjs@163.com
京公网安备11011302000819号