Surfactant induced copper vanadate (β-Cu₂V₂O₇, Cu₃V₂O₈) for different textile dyes degradation

In this study, pristine β-Cu₂V₂O₇, CTAB-β-Cu₂V₂O₇ and PVP-Cu₃V₂O₈ were synthesized via hydrothermal method. The synthesized brown powder samples were exemplified using XRD, UV, PL, Raman and SEM studies. Further with XRD, we confirmed that the impurities were eradicated in addition of surfactant PVP. The bandgap obtained were 3.09 eV, 2.97 eV and 2.28 eV for β-Cu₂V₂O₇, CTAB-β-Cu₂V₂O₇ and PVP-Cu₃V₂O₈. The morphology of β-Cu₂V₂O₇ was found to be cluster of nanoparticles with high level of agglomeration. While adding the surfactants (CTAB, PVP) the nano platelets were grown and uniformly arranged. The PVP-Cu₃V₂O₈ sample exhibited 96%, 77% and 96% efficiency on reducing Methylene Blue, Rhodamine B and Malachite Green dyes. The enhancement of attaining complete efficiency by the PVP-Cu₃V₂O₈ photocatalyst is attributed by the appropriate phase of host material and the PVP itself acted as a trapper for electron and hole which induced the rate of degrading toxic pollutants. The PVP-Cu₃V₂O₈ photocatalyst will be enthusiastic and optimized aspirant for reducing organic pollutants and for wastewater management in future days.