Journal of Textile Research ›› 2021, Vol. 42 ›› Issue (02): 142-147.doi: 10.13475/j.fzxb.20200700106

• Dyeing and Finishing & Chemicals • Previous Articles     Next Articles

Preparation and decolorization of rayon based zeoliticimidazolate framework functional material

LOU Yaya, WANG Jing, DONG Yanchao, WANG Chunmei()   

  1. School of Textile and Clothing, Nantong University, Nantong, Jiangsu 226019, China
  • Received:2020-07-01 Revised:2020-11-11 Online:2021-02-15 Published:2021-02-23
  • Contact: WANG Chunmei E-mail:w.cmei@ntu.edu.cn

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Abstract:

In order to improve the decolorization performance of zeoliticimidazolate framework material (ZIF-8) for dyes, reduced graphene oxide(rGO)/ZIF-8 rayon based functional materials were prepared by loading graphene oxide (GO) and ZIF-8 on rayon surface followed by reducing. The functional materials were characterized by scanning electron microscopy, X-ray diffraction, and Fourier transform infrared spectrometer. The photocatalytic degradation of Reactive Black KN-B dye by rGO/ZIF-8 rayon based functional material under different light sources was studied, and the photocatalytic mechanism was discussed. The results show that the decolorization ratio of rGO/ZIF-8 rayon based functional material for Reactive Black KN-B dye is 97.1%, and the superoxide anion radical (·O 2-) produced by the reaction between the functional material and sunlight are captured by dissolved oxygen in water, which is the main active substance to degrade Reactive Black KN-B. After being reused for three times, the decolorization ratio of Reactive Black KN-B dye remains to be more than 90%.

Key words: reduced graphene oxide, zeoliticimidazolate framework material, rayon fabric, photocatalytic degradation, Reactive Black KN-B, wastewater treatment

CLC Number: 

  • TS190.2

Fig.1

SEM images of rayon(a) and rGO/ZIF-8 loaded rayon functional material (b) (×2 000)"

Fig.2

FT-IR spectra of rayon and functional material"

Fig.3

XRD patterns of ZIF-8, rayon and functional material"

Fig.4

UV-Vis spectra of Reactive Black KN-B before and after degradation"

Fig.5

Photocatalytic effect of rayon on Reactive Black KN-B before and after loading"

Fig.6

Photocatalytic mechanism of ZIF-8"

Fig.7

Effect of different trappers on photocatalytic performance"

Fig.8

Effect of light in different wavebands on photocatalytic performance"

Fig.9

Reuse effect of rGO/ZIF-8 rayon based functional materials"

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