Varying the microstructural properties of ZnO particles using different synthesis routes (CROSBI ID 166770)
Prilog u časopisu | izvorni znanstveni rad | međunarodna recenzija
Podaci o odgovornosti
Šarić, Ankica ; Musić, Svetozar ; Ivanda, Mile
engleski
Varying the microstructural properties of ZnO particles using different synthesis routes
The hydrolysis at 90°C of zinc acetylacetonate [Zn(acac)2] in solutions containing sodium hydroxide and trisodium citrate was monitored using Raman and FT-IR spectroscopies and field emission scanning electron microscopy. The size and shape of the precipitated particles depended on the initial mole ratio [Zn(acac)2]/[Na3-citrate] and initial NaOH concentration. The conditions for precipitation of square plate-like particles or thin foils were determined. Nanosize ZnO particles of good uniformity were obtained by heating square plate-like particles or thin foils at 300°C. With additional heating at 600°C larger particles were obtained. These particles showed the Raman bands at 332, 384, 413, 438, 540 and 583 cm-1, which were assigned to wurtzite-type ZnO. For the initial mole ratio [Zn(acac)2]/[Na3-citrate] = 1 : 0.5 and at concentration of 1•10-2 M NaOH the ZnO particles of different shapes were obtained which consisted of primary nanosize particles with chemically bonded citrate groups.
ZnO ; FT-IR ; Raman ; FE-SEM
Rad je prezentiran na skupu The XXXth European Congress on Molecular Spectroscopy and Molecučlar Structure, održanom od 29.08.-03.09.2010.g., Firenca, Italija.
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Podaci o izdanju
993 (1/3)
2011.
219-224
objavljeno
0022-2860
1872-8014
10.1016/j.molstruc.2010.10.018