Optimization of Polyacrylonitrile and Metal Salt Ratios in Electrospun Nanofibers
Abstract
The main purpose of this study is to investigate the effects of different polyacrylonitrile (PAN)
ratios and metal salts in the solution on fiber formation during nanofiber production via the
electrospinning method. In the experimental process, PAN solutions were dried in an oven and
prepared at weight ratios of 5%, 7%, and 10%, then added to 10 grams of dimethylformamide
(DMF). To achieve the targeted (Co0,2Cu0,2Mg0,2Ni0,2Zn0,2)O structure in the nanofibers, cobalt
acetate, copper acetate, magnesium acetate, nickel acetate, and zinc acetate metal salts were
added to the solution at specific ratios. The addition ratios of the metal salts to the solution
ranged between 30% and 50%.
Scanning electron microscopy analysis of the nanofiber morphology revealed that different
PAN and metal salt ratios directly affected fiber thickness and structural integrity. It was
observed that lower PAN ratios increased nanofiber thinness. The thinnest fibers were obtained
using 5% PAN and 35% high-entropy metal oxide, demonstrating that solutions with low
viscosity produced finer and more homogeneous fibers during electrospinning. Metal salt ratios
were also found to significantly influence the surface structure and porosity of the fibers. The
chemical bonding structure of the synthesized nanofibers was examined using Fourier-
transform infrared spectroscopy.
In conclusion, this study highlights the critical importance of optimizing solution components
in nanofiber production via electrospinning to enhance fiber quality and properties. Adjusting
PAN concentration and metal salt ratios precisely play a key role in achieving the desired fiber
characteristics.
Keywords
nanofiber, electrospinnig, high entropy oxide
Project Number
123M886
Ethical Statement
The authors declare that there is no conflict of interest and ethical issue.
Thanks
This research was financially supported by the Scientific and Technological Research Council of Turkey (TÜBİTAK) under the project number 123M886.
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