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Author Edalati, Khatereh ♦ Shakiba, Atefeh ♦ Vahdati-Khaki, Jalil ♦ Zebarjad, Seyed Mojtaba
Source United States Department of Energy Office of Scientific and Technical Information
Content type Text
Language English
Subject Keyword MATERIALS SCIENCE ♦ CONCENTRATION RATIO ♦ HEXAGONAL LATTICES ♦ HYDROTHERMAL SYNTHESIS ♦ METHANOL ♦ MORPHOLOGY ♦ NANOSTRUCTURES ♦ NUCLEATION ♦ POWDERS ♦ SALTS ♦ SCANNING ELECTRON MICROSCOPY ♦ SODIUM HYDROXIDES ♦ SOLIDS ♦ SOLVENTS ♦ TEMPERATURE DEPENDENCE ♦ X-RAY DIFFRACTION ♦ ZINC OXIDES
Abstract Highlights: • We synthesized ZnO nanorods by a simple hydrothermal process at 60 °C. • Effects of zinc salt concentration, solvent and alkaline mineralizer was studied. • Increasing concentration of zinc salt changed ZnO nucleation system. • NaOH yielded better results in the production of nanorods in both solvents. • Methanol performed better in the formation of nanorods using the two mineralizers. - Abstract: ZnO has been produced using various methods in the solid, gaseous, and liquid states, and the hydrothermal synthesis at low temperatures has been shown to be an environmentally-friendly one. The current work utilizes a low reaction temperature (60 °C) for the simple hydrothermal synthesis of ZnO nanorod morphologies. Furthermore, the effects of zinc salt concentration, solvent type and alkaline mineralizer type on ZnO nanorods synthesis at a low reaction temperature by hydrothermal processing was studied. Obtained samples were analyzed using X-ray powder diffraction (XRD) and scanning electron microscopy (SEM). Increasing the concentration of the starting zinc salt from 0.02 to 0.2 M changed ZnO nucleation system from the homogeneous to the heterogeneous state. The XRD results confirmed the production hexagonal ZnO nanostructures of with a crystallite size of 40.4 nm. Varying the experimental parameters (mineralizer and solvent) yielded ZnO nanorods with diameters ranging from 90–250 nm and lengths of 1–2 μm.
ISSN 00255408
Educational Use Research
Learning Resource Type Article
Publisher Date 2016-02-15
Publisher Place United States
Journal Materials Research Bulletin
Volume Number 74


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