Journal of Textile Research ›› 2021, Vol. 42 ›› Issue (08): 122-127.doi: 10.13475/j.fzxb.20200905806

• Dyeing and Finishing & Chemicals • Previous Articles     Next Articles

Preparation of spunlaced viscose/polyaniline composite fiber membrane and its adsorption performance

LIU Suo, WU Dingsheng, LI Man, ZHAO Lingling, FENG Quan()   

  1. School of Textile and Garment, Anhui Polytechnic University, Wuhu, Anhui 241000, China
  • Received:2020-09-21 Revised:2021-03-31 Online:2021-08-15 Published:2021-08-24
  • Contact: FENG Quan E-mail:fengquan@ahpu.edu.cn

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Abstract:

Aiming at the low cost-performance ratio and singular adsorption effect of the existing adsorption materials, an in-situ growth method was used to form polyaniline on spunlaced viscose fiber membrane for good hydrophilicity, high cost-performance ratio and close vertical and horizontal strength to produce spunlaced viscose/polyaniline composite fiber membrane. The microstructure and chemical composition of the spunlaced viscose/polyaniline composite fiber membrane were analyzed, and the adsorption performance and the adsorption process for Reactive Red, Methyl Orange and Cr6+ ion in printing and dyeing wastewater were explored. The research results show that the polyaniline polymer can grow uniformly on the spunlaced viscose fiber membrane when adding 1.0 g aniline monomer, and the adsorption capacity of Reactive Red, Methyl Orange and Cr6+ ion reached 101.3, 81.2 and 105.04 mg/g respectively after 6 h adsorption. Meanwhile, the adsorption process of Reactive Red, Methyl Orange and Cr6+ ion conformed to the Langmuir isotherm adsorption model, indicating that the spunlaced viscose/polyaniline composite fiber membrane has good adsorption performance.

Key words: spunlaced viscose fiber membrane, polyaniline, printing and dyeing wastewater, Cr6+ion, Langmuir adsorption model, in-situ growth method

CLC Number: 

  • TQ342

Fig.1

SEM images of composite fiber membrane with different aniline additions(×1 000)"

Tab.1

Porosity and weight gain of composite fiber membrane"

苯胺单体添加量/g 比表面积/(m2·g-1) 质量增加率/%
0.0 11.461
1.0 10.145 22.30
1.2 7.284 38.44

Fig.2

FT-IR spectra of spunlaced viscose and spunlaced viscose/PANI composite fiber membrane"

Tab.2

Element types and content of composite fiber membrane %"

样品名称 C O N S
水刺粘胶纤维膜 41.57 58.43
水刺粘胶/PANI复合纤维膜 54.83 34.88 7.20 3.09

Fig.3

Adsorption performance of composite fiber membrane to Reactive Red, Methyl Orange and Cr6+ ion"

Fig.4

Adsorption performance of composite fiber membrane to Reactive Red(a), Methyl Orange(b) and Cr6+ ion(c) with different initial concentrations"

Tab.3

Isothermal data for adsorption equilibrium equation of composite fiber membrane"

废水污染物
类别		 Qe/
(mg·g-1)		 Qmax/
(mg·g-1)		 b 拟合系数
R2
活性红 101.30 121.45 0.008 70 0.994 9
甲基橙 81.20 101.80 0.006 60 0.988 0
Cr6+离子 105.04 112.89 0.002 50 0.992 0
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