Journal of Textile Science and Technology

Journal of Textile Science and Technology

A Study on nickel and iron removal from wastewater by polyacrylonitrile/thermoplastic polyurethane nanofibers

Document Type : Research/ Original/ Regular Article

Authors
ُSima Habibi 1
Aazam Talebian 1
Atiyeh Ghajarieh 2
Shiva Aliakbari 1
1 Faculty of Engineering, Department of textile, Yadegar-e-Imam Khomeini (RAH) Shahre Rey Branch, Islamic Azad University, Tehran, Iran
2 Faculty of Engineering, Young Researchers and Elite Club, Yadegar-e-Imam Khomeini (RAH) Shahre Rey Branch, Islamic Azad University,Tehran,Iran
10.22034/jtst.2024.449135.1457
Abstract
Today, utilizing new technologies for heavy metal removal and water quality improvement is essential in combating environmental pollution caused by heavy metals. Polymeric nanofibers are widely used in the water treatment industry due to their high surface-to-volume ratio, three-dimensional structure, suitable mechanical properties, good pore connectivity, chemical potential, and high filtration performance at the nanoscale. In this study, thermoplastic polyurethane (TPU) and polyacrylonitrile (PAN) polymer nanofibers were prepared using electrospinning to investigate the removal of nickel and iron metal ions. Scanning electron microscopy revealed that a voltage of 10 volts and a distance of 15 cm, with a TPU/PAN polymer ratio of 70:30, were optimal for fiber production. The reaction between these polymers was analyzed using Fourier transform infrared spectroscopy (FTIR). The results demonstrated that increasing the amount of polyurethane in the polymer composition to a 70:30 ratio increased the contact angle of the droplet with the absorbent surface by 40.10°, compared to polyacrylonitrile with an angle of 21.49°. The findings indicated that the TPU:PAN adsorbent with a 70:30 ratio achieved a nickel absorption rate of 45.8% and an iron absorption rate of 33.18% under optimal pH and time conditions..
Keywords
Nanofibers
heavy metals
environment
surface adsorption
PAN/TPU
Subjects
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  • Receive Date 18 March 2024
  • Revise Date 25 July 2024
  • Accept Date 03 August 2024