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Home > Archives > Volume 20, No 6 (2022) > Article

DOI: 10.14704/nq.2022.20.6.NQ22307

The effect of applied voltage and needle diameter on the structural and optical properties of PVP/CuS composite nanofibers prepared via electrospun

Ammar A. Muhammad 1*, Isam M. Ibrahim2


This work was carried out to form nanofibers from a PVP/CuS composite using an electrospinning technique. The morphological and optical properties of the formed films were studied by FESEM, FTIR, and UV-VIS devices, and we obtained linear fibers with nanoscale dimensions. The results showed that the diameter of the resulting nanofibers with a needle (30 G) was smaller than the nanofibers the product from measuring needle gauges (27G and 24G) when applying a DC voltage (25 kV), and the same result appeared when applying a DC voltage (20 kV). The results of the optical properties examination showed that absorbance increases in needle-produced small-diameter fibers (30 G), and the energy gap decreases in needle-produced large-diameter fibers (24 G). And FTIR spectroscopy revealed coupling between PVP and doping materials. This indicates the formation of nanocomposites. These results lead to an improvement in the mechanical, physical, and biological properties of the formed fibers and an increase in chemical activity, which increases the possibility of their application in various industrial, agricultural, and health fields.


electrospinning, PVP/CuS composite nanofiber, polyvinylpyrrolidon..

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