title: Preparation and characterization of vanadium-doped ZnO nanoparticles for environmental application.
abstract: Vanadium-doped ZnO nanoparticles (ZnO:V) were prepared via flame spray pyrolysis (FSP) from a mixed aqueous solution of zinc hydroxide and vanadyl (IV) acetylacetonate. The morphological, structural and optical properties of the ZnO:V photocatalyst were characterized via transmission electron microscopy (TEM), X-ray powder diffraction (XRD), and UV-visible diffused reflection spectrum (DRS). The photocatalytic activity of ZnO:V was evaluated via photocatalytic degradation of methylene blue (MB). The results showed that the hexagonal wurtzite-structured ZnO:V nanoparticles were successfully synthesized via FSP. The morphology of the as-prepared nanoparticles was polyhedral and non-hollow. The average diameter of ZnO:V, which was calculated from BET result, was 11.7 nm when the molar ratio of V/Zn was 0.1. The maximum decomposition of MB by the ZnO:V nanoparticles was 99.4% after 180 min under UV irradiation, whereas the decomposition of MB by the pure ZnO nanoparticles was 96.6%.
authors: Industrial Materials Research Department, Korea Institute of Geoscience and Mineral Resources (KIGAM), Daejeon 305-350, Korea.
authors: Hankwon
authors: H
authors: Chang
authors: Jonian
authors: J
authors: Nikolov
authors: Sun-Kyung
authors: SK
authors: Kim
authors: Hee Dong
authors: HD
authors: Jang
authors: Seng
authors: S
authors: Lim
authors: Dong-Jin
authors: DJ
authors: Kim
mesh_terms: D053768:Metal Nanoparticles / Q000737:chemistry*; D008751:Methylene Blue; D046529:Microscopy, Electron, Transmission; D010316:Particle Size; D013056:Spectrophotometry, Ultraviolet; D014639:Vanadium / Q000737:chemistry*; D014961:X-Ray Diffraction; D015034:Zinc Oxide / Q000737:chemistry*
chemical_list: D014639:Vanadium; D015034:Zinc Oxide; D008751:Methylene Blue