The electrospinning technique was used to fabricate WO3 NPs/PVA nanofibers.
X-ray analysis is used to evaluate the micro structural parameters of WO3 NPs/PVA.
The average diameters of nanofibers were about 125 ± 15 and 165 ± 30 nm, respectively.
Nanofibers show excellent photocatalytic activity in decolourization of MB solution.