Abstract
SrCO 3 and BaCO 3 nanoparticles were synthesized using Sr(NO 3) 2 or Ba(NO 3) 2 and Na 2CO 3 as starting materials in ethylene glycol by ultrasonic irradiation at 80 °C for 1–5 h. Their phases, vibration modes and morphologies were characterized using X-ray powder diffraction (XRD), Fourier transform infrared (FTIR) spectroscopy, selected area electron diffraction (SAED) and transmission electron microscopy (TEM). These products were found to be orthorhombic SrCO 3 and BaCO 3 nanoparticles with 20–50 nm and 40–100 nm ranges, respectively. Asymmetric stretching, symmetric stretching, and out of plane and in plane bending vibrations of CO 3 2− complexes were also detected.
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