International Research Journal of Engineering and Technology (IRJET)
e-ISSN: 2395-0056
Volume: 04 Special Issue: 09 | Sep -2017
p-ISSN: 2395-0072
www.irjet.net
One Day International Seminar on Materials Science & Technology (ISMST 2017) 4th August 2017 Organized by
Department of Physics, Mother Teresa Women’s University, Kodaikanal, Tamilnadu, India
Synthesis and characterization of ZnO and Ammonium doped ZnO nanoparticles by Co-Precipitation method M.Dharanya, S. Sri Devi,M.sc,M.Phil,B.Ed, J.Jamunapandi,M.sc,M.Phil.
Department of Physics, Sakthi College of Arts and Science for Women, Oddanchadram, Dindigul 624624 -------------------------------------------------------------------------***--------------------------------------------------------------------
Abstract - Nanoparticles ZnO synthesized by co-precipitation method by drop by drop method, the concentration of X is 0.3. The powder samples were characterized by XRD, FT-IR, UV and SEM and EDX. The average crystallite sizes of the particles were determined from X-ray diffraction. X-analysis showed that the shape of the sample. The lattice constant (a0) increased with increase in zinc substitution. The Fourier transform infrared spectroscopy spectra of ZnO range 3434.3 cm-1 were reported. Then UV visible spectroscopy finds the visible region of sample. The shape and the structure was analyzing by using SEM. These are using in many field and many application. Key words: co-precipitation, XRD, SEM, EDX, FT-IR, U-V. Introduction Nanotechnology is manipulation of matter on an atomic and molecular in molecular scale. The earliest, widespread description of nanotechnology referred to the particular technological goal of precisely manipulating atoms and molecules for fabrication of macro scale products. Ammonium acetate and zinc acetate are non toxic elements; it is not dangerous to human health and KOH powder also non toxic element. The NH4CH3CO2 and ZnC4H6O4 these both elements are diamagnetic and it has diamagnetic properties. The ammonium acetate occasionally employed as a biodegradable de-icing agent, and it is melting at low temperature. Zinc acetate is using for treat a certain liver disease. KOH solution was a good cleanser. The synthesis of ZnO ultra fine powder by NH4 doped by ZnO co- precipitation method. Nanosize of the ZnO in 40 nm in nanometric scale and band gap energy is 4.2ev. Nanotechnology may be able to create many new materials and devices with a vast range of applications, such as in nano medicine, nano electronics, and biomaterials energy production and consumer products. Experimental method: Ammonium doped zinc oxide nanocrystals have been synthesized in aqueous solution by using zinc acetate, ammonium acetate and potassium hydroxide as the starting materials. 1.834g zinc acetate and 0.7708g ammonium acetate were dissolving in 100 ml of ultra pure water and then 0.1402g KOH was dissolved in 10 ml of ultra pure water. Aqueous solution of zinc acetate and ammonium acetate at 210 ˚C was stirred for about 30 min using a magnetic stirred. Then the KOH solution was added slowly drop wise up to aqueous solution of zinc acetate and ammonium acetate at 100˚C under constant stirring. After 3 hours of the flask was collected and washed with ethanol and deionized water. Finally the precipitated was dried over 50 ˚ C for 6 hours in order to remove the water molecules to obtain the ZnO nanocrystals in powder form. The samples were stored at room temperature. RESULT AND DISCUSION Phase analysis using XRD XRD Analysis of NH4 doped ZnO nanoparticle reaction may lead to changes in molecular and crystalline structure of the nanoparticles and hence an understanding of the molecular and crystalline structures of the nanoparticle and the resulting changes there if would provide valuable information regarding nanoparticle reaction. The XRD pattern of NH4 doped ZnO sample is shown in fig.1 © 2017, IRJET
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