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Title: Synthesis of nano-sized ZnO particles by co-precipitation method with variation of heating time

Zinc oxide powders have been synthesized by a co-precipitation method at low temperature (85 °C), using zinc acetate dihydrate, ammonia, hydrochloric acid solutions as the reactants. A number of process parameters such as reaction temperature, solution basicity or pH and heating time are the main factors affecting the morphology and physical properties of the ZnO nanostructures. In this work the effect of heating time on the morphology and particles size were studied. The as-synthesized ZnO powders were characterized using transmission electron microscopy (TEM) and X-ray diffraction (XRD) techniques. The samples were also analyzed using Fourier transform infrared (FTIR). Rietveld refinement of XRD data confirms that ZnO crystallizes in the hexagonal wurtzite structure with high degree of purity and the (101) plane predominant. The XRD results show that the average crystallite sizes were about 66, 27 and 12 nm for 3, 4 and 5 h of heating times, respectively. The XRD analysis indicated that a fraction of nano-sized ZnO powders were in the form of aggregates, which was also verified by TEM image. The TEM photograph demonstrated that the nano-sized ZnO particles were a pseudo-spherical shape.
Authors:
; ; ;  [1]
  1. Department of Physics, Faculty of Mathematics and Natural Sciences, Institute of Technology Sepuluh November (ITS), Jl. Arief Rahman Hakim, Surabaya Indonesia 60111 (Indonesia)
Publication Date:
OSTI Identifier:
22494620
Resource Type:
Journal Article
Resource Relation:
Journal Name: AIP Conference Proceedings; Journal Volume: 1710; Journal Issue: 1; Conference: NNS2015: 6. nanoscience and nanotechnology symposium, Surakarta (Indonesia), 4-5 Nov 2015; Other Information: (c) 2016 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
37 INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY; 71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; AMMONIA; COPRECIPITATION; FOURIER TRANSFORMATION; HEATING; HYDRATES; HYDROCHLORIC ACID; IMAGES; IMPURITIES; INFRARED SPECTRA; MATHEMATICAL SOLUTIONS; NANOPARTICLES; NANOSTRUCTURES; PARTICLE SIZE; PH VALUE; PHYSICAL PROPERTIES; POWDERS; SHAPE; SPHERICAL CONFIGURATION; SYNTHESIS; TEMPERATURE RANGE 0273-0400 K; TRANSMISSION ELECTRON MICROSCOPY; VARIATIONS; X-RAY DIFFRACTION; ZINC OXIDES