Journal
RARE METALS
Volume 35, Issue 5, Pages 390-395Publisher
NONFERROUS METALS SOC CHINA
DOI: 10.1007/s12598-015-0508-3
Keywords
Nanostructure materials; Sonochemical method; Photocatalysis
Funding
- National Research University Project for Chiang Mai University (CMU) from the Thailand's Office of the Higher Education Commission, Thailand
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ZnO nanostructure materials doped with different La contents were synthesized by sonochemical method. The products were characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM), transmission electron microscopy (TEM), Raman spectroscopy, and Fourier transform infrared spectroscopy (FTIR). In this research, XRD patterns of pure ZnO and La-doped ZnO are specified as hexagonal wurtzite ZnO structure with no detection of La2O3 phase. SEM and TEM characterization revealed the flower shape of pure ZnO built-up from petals of hexagonal prisms with hexagonal pyramid tips. Upon doping with La, the flower-shaped ZnO is broken into individual 1D prism-like nanorods. Photocatalytic activities of the as-synthesized products were determined by measuring the degradation of methylene blue (MB) under ultraviolet-visible (UV) light irradiation. Among them, the 2.0 mol% La-doped ZnO shows better photocatalytic properties than any other products.
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