Journal of Textile Research ›› 2020, Vol. 41 ›› Issue (02): 155-164.doi: 10.13475/j.fzxb.20190306210

• Comprehensive Review • Previous Articles     Next Articles

Recent progress in differentiated polyacrylonitrile fiber and their applications in environmental purification

LI Fu(), LIU Shuqiang, FEI Pengfei, ZHANG Man, WU Gaihong   

  1. College of Textile Engineering, Taiyuan University of Technology, Jinzhong, Shanxi 030600, China
  • Received:2019-03-22 Revised:2019-11-25 Online:2020-02-15 Published:2020-02-21

Abstract:

In order to expand the application scope and depth of polyacrylonitrile (PAN) fibrous materials in industrial textiles, several differentiated treatments of PAN fibers including physical modification, chemical modification, cross-section differentiated and nano-sized were introduced in this present work. These methods work to remove harmful substances from water, air and soil by adsorption, oxidation-reduction, interception and other ways making use of the structural characteristics of materials or functional groups introduced. Moreover, the application progress of differentiated PAN fibers in the three environmental purification fields was also reviewed including water purification by seawater desalination, oil-water separation and organic pollutant removal. Air purification by particulate and harmful gas filtration, and gas-liquid separation as well as soil purification. The review indicates that the green production of PAN fibers and the green differentiation of waste PAN fibers are regarded as the main directions to promote the development of differentiated PAN fibrous materials in industrial textiles in the future.

Key words: polyacrylonitrile fiber, differentiation, environmental purification, industrial textiles

CLC Number: 

  • TQ342.3

Fig.1

SEM images of commercial PAN fibers (a) and PAN (b) nanofibers"

Fig.2

SEM image of porous CNTs/G-CNFs composite nanofibers"

Fig.3

Reaction between Zn(NO3)2 and PAN and adsorption of Cr(VI) by resulting material"

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