Augmented structural and optical characteristics of SnO2/MnO2-doped PEO/PVP blend for photodegradation against organic pollutants

This paper aims to fabricate of (PEO-PVP) blend doped with SnO 2 /MnO 2 NPs for photodegradation of organic pollutants with low cost, high activity high propagation and anti-aggregation of nanoparticles compare with other materials.The polymer blend was prepared with ratio: 80 wt.% PEO and 20 wt.% PVP. The structural and optical properties of (PEO-PVP-SnO 2 -MnO 2 ) nanocomposites have been studied in wavelength range (220–820) nm. The photodegradation behavior for (PEO-PVP-SnO 2 -MnO 2 ) nanocomposites against organic pollutants has been investigated. The results indicated that the absorbance of (PEO–PVP) blend increases about 51% with adding of 4.5 MnO 2 NPs. The energy gap decreased for allowed and forbidden transitions about 55% and 91%, respectively, by adding of 4.5 MnO 2 NPs, this behavior is useful for optoelectronics, photocatalysis, the solar cells and diodes fields with low cost and light weight. Finally, the photodegradation activity of (PEO-PVP) blend and (PEO-PVP-SnO 2 ) were increased with increasing of the MnO 2 NPs ratios. The (PEO–PVP–SnO 2 –MnO 2 ) NCs with 4.5 wt% of MnO 2 NPs have photodegradation ratio 59%.