Highly efficient WO3–ZnO mixed oxides for photocatalysis. Issue 16 (21st January 2015)

• Record Type: Journal Article
• Authors: Adhikari, Sangeeta; Sarkar, Debasish; Madras, Giridhar
• Is Part Of: RSC advances. Volume 5:Issue 16(2015)
• Page Start: 11895
• Page End: 11904
• Publication Date: 2015-01-21
• Subjects: Chemistry -- Periodicals; 540.5
• DOI: 10.1039/c4ra13210f
• Languages: English
• ISSNs: 2046-2069

Abstract

Abstract : Monoclinic nanocuboid WO3 enhanced the photocatalyst efficiency of quasi nanobelt zinc oxide for dye degradation in the presence of visible light radiation. Abstract : Monoclinic nanocuboid WO3 enhanced the photocatalyst efficiency of quasi nanobelt zinc oxide for dye degradation in the presence of visible light radiation. Combustion synthesized ZnO resulted in a belt-like morphology through in situ cluster formation of near spherical particles but homogenously disperses and strongly adheres to nanocuboid WO3 during physical mixing. Cationic methylene blue (MB) and anionic orange G (OG) undergo degradation through a charge transfer mechanism in the presence of WO3 –ZnO (1 : 9 weight percentage ratio) mixture. The photocatalytic reaction was enhanced due to the reduction in the recombination of photogenerated electron–holes. The high degree of 90% degradation of both dyes is due to the activity of the mixed oxides, which is much higher than that obtained either with WO3 or ZnO individually.