高等学校化学学报 ›› 2018, Vol. 39 ›› Issue (4): 825-831.doi: 10.7503/cjcu20170482

• 高分子化学 • 上一篇    下一篇

AOPAN@PAN同轴纳米纤维的制备及吸附性能

任晶1,2, 王书刚1, 李延春2, 杨清彪1(), 宋岩2(), 李耀先1   

  1. 1. 吉林大学化学学院, 长春 130021
    2. 吉林化工学院材料科学与工程学院, 吉林 132022
  • 收稿日期:2017-07-19 出版日期:2018-04-10 发布日期:2018-03-27
  • 作者简介:联系人简介: 杨清彪, 男, 博士, 教授, 主要从事有机纳米功能材料方面的研究. E-mail:yangqb@jlu.edu.cn;宋 岩, 女, 博士, 教授, 主要从事高分子功能材料方面的研究. E-mail:songyan199809@163.com
  • 基金资助:
    吉林省自然科学基金(批准号: 20160101311JC)、 吉林省科技厅重点项目(批准号: 20170204039GX)和吉林市科技局项目(批准号: 20161204)资助

Preparation of AOPAN@PAN Coaxial Nanofiber Membrane and It’s Adsorption Property

REN Jing1,2, WANG Shugang1, LI Yanchun2, YANG Qingbiao1,*(), SONG Yan2,*(), LI Yaoxian1   

  1. 1. College of Chemistry, Jilin University, Changchun 130061, China
    2. College of Materials Science & Engineering, Jilin Institute of Chemical Technology, Jilin 132022, China
  • Received:2017-07-19 Online:2018-04-10 Published:2018-03-27
  • Contact: YANG Qingbiao,SONG Yan E-mail:yangqb@jlu.edu.cn;songyan199809@163.com
  • Supported by:
    † Supported by the Natural Science Foundation of Jilin Province, China(No.20160101311JC), the Key Projects of Science and Technology Department of Jilin Province, China(No.20170204039GX) and the Science and Technology Bureau Project of Jilin Province, China(No.20161204)

摘要:

将盐酸羟胺与聚丙烯腈(PAN)反应得到偕胺肟化聚丙烯腈(AOPAN)溶液, 随后采用同轴静电纺丝技术, 制备了以AOPAN为壳, PAN为芯的同轴纳米纤维(AOPAN@PAN). 通过透射电子显微镜(TEM)、 扫描电子显微镜(SEM)和红外光谱(FTIR)等对纤维的形貌、 组成和力学性能进行了表征. 结果表明, 随着PAN用量的增加, AOPAN@PAN同轴纳米纤维的强度逐渐变大, 当芯层与壳层质量比为1∶3时, 纳米纤维的抗拉伸强度和断裂伸长率分别为3.677 MPa和18.03%; 对Cu2+, Pb2+, Cr$O^{2-}_{4}$和甲基橙(MO)的最大吸附量分别为135.1, 151.2, 120.48和43.45 mg/g; 使水中Cu2+, Pb2+, Cr$O^{2-}_{4}$和MO的浓度分别降低到0.17, 0.03, 0.06和0.91 mg/L.

关键词: 同轴静电纺丝, 偕胺肟化聚丙烯腈, 金属离子吸附, 染料

Abstract:

Amidoxylated polyacrylonitrile(AOPAN) solution was prepared by the reaction of hydroxylamine hydrochloride and polyacrylonitrile(PAN). At the same time, the coaxial nanofibers(AOPAN@PAN) with AOPAN as shell and PAN as core was prepared by coaxial electrospinning technology. And the morphology, composition and mechanical properties of nanofibers were characterized by means of transmission electron microscopy(TEM), scanning electron microscopy(SEM) and infrared(FTIR). The results showed that the strength of AOPAN@PAN coaxial nanofibers increased with the increase of PAN dosage. The tensile strength and elongation at break of nanofibers was 3.677 MPa and 18.03% when the mass ratio of core to shell was 1∶3, and the maximum adsorption capacities of Cu2 +, Pb2 +, Cr$O^{2-}_{4}$ and methyl orange(MO) was 135.1, 151.2, 120.48 and 43.45 mg/g, respectively. At the same time, the concentrations of Cu2+, Pb2 +, Cr$O^{2-}_{4}$ and MO are reduced to 0.17, 0.03, 0.06 and 0.91 mg/L after treatment with this nanofiber.

Key words: Coaxial electrospinning, Amidoximation polyacrylonitrile, Metal ion adsorption, Dye

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