Visible-Light Driven Photocatalytic Degradation of Eosin Yellow (EY) Dye Based on NiO-WO₃ Nanoparticles

• Published in: Journal of nanoscience and nanotechnology Vol. 20; no. 2; p. 924
• Main Authors: Rani Rosaline, D, Inbanathan, S S R, Suganthi, A, Rajarajan, M, Kavitha, G, Srinivasan, R, Hegazy, H H, Umar, Ahmad, Algarni, H, Manikandan, E
• Format: Journal Article
• Language: English
• Published: United States 01.02.2020
• ISSN: 1533-4899
• DOI: 10.1166/jnn.2020.16898

Herein, we report a simple synthesis, characterization and photocatalytic degradation application of composite NiO-WO₃ nanoparticles. The nanoparticles were synthesized by facile low-temperature method and characterized by several techniques such as X-ray diffraction (XRD), scanning electron microscopy (SEM), transmission electron microscopy (TEM) and UV-Vis diffuse reflectance spectra (DRS). The synthesized NiO-WO₃ nanoparticles were used as efficient photocatalyst for the photocatalytic degradation of Eosin yellow (EY) dye. Interestingly, the synthesized photocatalytic exhibited a significant visible-light driven photocatalytic degradation of Eosin yellow (EY) dye. Under optimized conditions (pH = 5, catalyst dosage = 3 M and initial dye concentration= 1.0 g/L), the obtained photo degradation of EY dye was above 95% in 180 min under visible light irradiation. Remarkably, reusability of the prepared photocatalyst was also observed and the photo-degradation reactions follow the pseudo-first-order model.