高等学校化学学报 ›› 2017, Vol. 38 ›› Issue (8): 1465-1469.doi: 10.7503/cjcu20170142

• 高分子化学 • 上一篇    下一篇

PVA/GA/β-CD纳米纤维的制备及染料吸附性能

鲁冠秀1,2, 刘庆文2, 孔祥怡1, 丛乐乐1, 宋岩3, 赵晴1, 杨清彪2, 李耀先2   

  1. 1. 吉林大学中日联谊医院, 长春 130031;
    2. 吉林大学化学学院, 长春 130021;
    3. 吉林化工学院材料科学与工程学院, 吉林 132022
  • 收稿日期:2017-03-09 修回日期:2017-06-12 出版日期:2017-08-10 发布日期:2017-06-12
  • 通讯作者: 赵晴,女,博士,教授,主要从事纳米材料及纳米医学研究.E-mail:qingzhao888@hotmail.com;杨清彪,男,博士,教授,主要从事有机纳米功能材料研究.E-mail:yangqb@jlu.edu.cn E-mail:qingzhao888@hotmail.com;yangqb@jlu.edu.cn
  • 基金资助:

    吉林省自然科学基金(批准号:20160101311JC,20170101105JC)和吉林省科技厅重点项目(批准号:20140204054GX,20170204039GX)资助.

Preparation of PVA/GA/β-CD Nanofibers and Its Adsorption of Dyestuff

LU Guanxiu1,2, LIU Qingwen2, KONG Xiangyi1, CONG Lele1, SONG Yan3, ZHAO Qing1, YANG Qingbiao2, LI Yaoxian2   

  1. 1. China-Japan Union Hospital of Jilin University, Changchun 130031, China;
    2. College of Chemistry, Jilin University, Changchun 130021, China;
    3. College of Materials Science and Engineering, Jilin Institute of Chemical Technology, Jilin 132022, China
  • Received:2017-03-09 Revised:2017-06-12 Online:2017-08-10 Published:2017-06-12
  • Supported by:

    Supported by the Natural Science Foundation of Jilin Province, China(Nos.20160101311JC, 20170101105JC) and the Key Projects of Science and Technology Department of Jilin Province, China(Nos.20140204054GX, 20170204039GX).

摘要:

利用静电纺丝技术,以六氟异丙醇(HFIP)和水为溶剂,制备了环糊精(β-CD)含量为70%(质量分数)的聚乙烯醇(PVA)/β-CD纳米纤维,并经戊二醛(GA)交联处理得到了可用于染料吸附的PVA/GA/β-CD纳米纤维.通过红外光谱和扫描电子显微镜研究了交联反应前后纳米纤维组成和形貌的变化;考察了PVA/GA/β-CD纳米纤维对7种水溶性染料的吸附性能.结果表明,PVA/GA/β-CD纳米纤维对孔雀石绿、甲基紫和刚果红的吸附效果较好,最大吸附量分别为124.71,121.14和127.39 mg/g,4次吸附-解吸附循环后,染料去除率仍保持80%左右,在染料废水处理中具有良好的应用前景.

关键词: 纳米纤维, 静电纺丝, 环糊精, 染料吸附性能

Abstract:

The polyvinylalcohol/β-cyclodextrin(PVA/β-CD) nanofibers with 70%(mass fraction) of β-CD were obtained by electrostatic spinning with hexafluoroisopropanol(HFIP) and H2O as solvents. And after cross-linking treatment with glutaraldehyde(GA), a water-insoluble nanofiber membrane of PVA/GA/β-CD was prepared. Compared with the products before being cross-linking, composition and morphology for the nanofibers were studied by Infrared spectroscopy and scanning electron microscopy. In addition, the adsorptive properties of the PVA/GA/β-CD nanofibers to seven water-soluble dyes were investigated. The results show that the adsorptive effect of fiber on malachite green, methyl violet and congo red are better than others, and the maximum adsorptive capacities are 124.71, 121.14 and 127.39 mg/g, respectively. After four cycles of adsorption-desorption, the dye removal rate still remains 80%. Thus, the nanofiber exhibits an excellent applicative prospect in waste water treatment with dye.

Key words: Nanofiber, Electrospinning, Cyclodextrin, Adsorption of dyestuff

中图分类号: