JOURNAL OF TEXTILE RESEARCH ›› 2012, Vol. 33 ›› Issue (3): 5-8.

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Preparation of Cd2+-PVA/PA6 metal chelated nanofibers and analysis of reaction kinetics

 FENG  Quan, WANG  Qing-Qing, WEI  Qu-Fu, WANG  Xue-Qian, HOU  Da-Yin   

  • Received:2011-04-14 Revised:2011-07-13 Online:2012-03-15 Published:2012-03-06
  • Contact: WEI Qu-Fu E-mail:qfwei@jiangnan.edu.cn

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Abstract: PVA/PA6 composite nanofibers were formed by electrospinning and the reacted with Cd2+ solution to prepare Cd2+ -PVA/PA6 metal chelated nanofibers. The metal ions (Cd2+) concentration was determined by atomic absorption spectrophotometer (AAS); the morphologies were characterized by scanning electronic microscopy (SEM); and the major absorption peaks were assigned by means of Fourier transform infrared (FT-IR) spectrography. The result shows that PVA/PA6 composite nanofibers have excellent adsorption capacity for metals ions such as Cd2+ and good shape stability.  The absorption  process and kinetics parameters of metal ions were also studied in this work. The saturated amounts of coordinated Cd2+ (Qm) was 4.4643 mmol/g (dry fiber),  the adsorption constant (Kl) was 0.0257 L/mmol ,and the correlation coefficient R2=0.997. The process of reaction was corresponding with Langmuir model.

Key words: PVA, PA6, nanodiber, metal chelated, kinetics

CLC Number: 

  • TQ342
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