高等学校化学学报 ›› 2018, Vol. 39 ›› Issue (1): 115-123.doi: 10.7503/cjcu20170281

• 物理化学 • 上一篇    下一篇

混合改性PAN纳米纤维铁配合物的吸附-催化双功能在有机染料去除中的应用

李甫1, 董永春1,2(), 程博闻1,2, 康卫民1,2   

  1. 1. 天津工业大学纺织学院, 2. 省部共建分离膜与膜过程国家重点实验室, 天津 300387
  • 收稿日期:2017-05-03 出版日期:2018-01-10 发布日期:2017-12-19
  • 作者简介:联系人简介: 董永春, 男, 博士, 教授, 主要从事纺织化学与环保技术方面的研究. E-mail:teamdong@sina.cn
  • 基金资助:
    国家重点技术支持项目(批准号: 2015BAE01B03)、 江苏省双创人才项目(批准号: 2015-26)和天津市科技计划项目(批准号: 14TXGCCX00014)资助

Application of Hybrid Modified PAN Nanofibrous Membrane Fe Complexes with Adsorption-photocatalysis Bifunctions for Removal of Organic Dye from Water

LI Fu1, DONG Yongchun1,2,*(), CHENG Bowen1,2, KANG Weimin1,2   

  1. 1. School of Textile, 2. State Key Laboratory of Separation Membranes and Membrane Processes,Tianjin Polytechnic University, Tianjin 300387, China
  • Received:2017-05-03 Online:2018-01-10 Published:2017-12-19
  • Contact: DONG Yongchun E-mail:teamdong@sina.cn

摘要:

将静电纺丝法制备的聚丙烯腈(PAN)纳米纤维膜用不同比例的盐酸羟胺和水合肼混合溶液改性, 再与Fe3+离子进行配位反应, 制备了5种不同表面结构的改性PAN纳米纤维铁配合物; 考察了水合肼加入量对纤维铁配合物的制备及对偶氮染料活性红195去除能力的影响. 结果表明, 随着水合肼加入量的增大, 改性PAN纳米纤维的直径减小且其铁配合物表面的铁离子配合量降低; 3种混合改性PAN纳米纤维铁配合物均对活性红195具有优良的吸附和光催化降解功能, 可通过2种功能之间的协同效应实现快速去除水溶液中染料分子的目的.

关键词: 聚丙烯腈纳米纤维, 混合改性, Fenton反应, 染料降解, 吸附-催化

Abstract:

Polyacrylonitrile nanofibrous(n-PAN) membrane were prepared by electrospun method and modified with different molar ratios of hydroxylamine(HA) and/or hydrazine hydrate(HH). The resulting modified n-PANs were then coordinated with Fe3+ ions to fabricate five modified n-PAN Fe complexes with different surface structures. The effect of HH addition on the complex preparation and its removal performance of azo dye Reactive red 195 from water were investigated and compared. The results indicated that the modified n-PAN fibrous diameter and Fe content of its Fe complex decreased as the addition of HH increased. This lead to a better adsorption and photocatalytic degradation capacities of three hybrid modified n-PAN Fe complexes. Thus, the rapid removal of dye molecules from aqueous solution was obtained through combination of both functions of the complexes mentioned above.

Key words: Polyacrylonitrile nanofibers, Hybrid modification, Fenton reaction, Dye degradation, Adsorption-catalysis

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