Nano-sized ZnO powders prepared by co-precipitation method with various pH

• Main Authors: Purwaningsih, S. Y., Pratapa, S., Triwikantoro, Darminto
• Format: Conference Proceeding
• Language: English
• Subjects: AMMONIA; AMMONIUM COMPOUNDS; COPRECIPITATION; Crystallites; Diffraction; Electron microscopes; FOURIER TRANSFORMATION; Fourier transforms; FTIR spectrometers; HEXAGONAL LATTICES; HYDRATES; HYDROCHLORIC ACID; INFRARED SPECTRA; MICROSTRUCTURE; MORPHOLOGY; NANOPARTICLES; NANOSCIENCE AND NANOTECHNOLOGY; NANOSTRUCTURES; Organic chemistry; ORGANIC OXYGEN COMPOUNDS; PH VALUE; POWDERS; Purity; RAW MATERIALS; SCANNING ELECTRON MICROSCOPY; Shape effects; Synthesis; Wurtzite; X-RAY DIFFRACTION; X-RAY SPECTROSCOPY; Zinc oxide; ZINC OXIDES
• ISSN: 0094-243X; 1551-7616
• DOI: 10.1063/1.4945517

In this work, nano-sized ZnO powders have been synthesized by the co-precipitation method with Zn(CH3COOH)2.2H2O, HCl, and NH3.H2O as raw materials in various pH ranging from 8 to 10. The purity, microstructure, chemical group analysis, morphology of the prepared ZnO powders were studied by X-ray diffraction (XRD), Fourier transform infrared spectrometer (FTIR), energy dispersive X-ray spectrometry (EDX), and scanning electron microscope (SEM), respectively. Rietveld refinement of XRD data showed that ZnO crystallizes in the wurtzite structure with high purity. The obtained powders were nano-sized particles with the average crystallite size about 17.9 ± 2.1 nm synthesized with pH of 9.5, at 85°C, and stirring time of 6 h. The SEM results have visualied the morphology of ZnO nanoparticles with spherical-like shape. The effect of processing conditions on morphology of ZnO was also discussed.