The phases, vibrationmodes andmorphologies of the productswere
characterized using X-ray diffraction (XRD)—recorded on a D-500
Siemens X-ray diffractometer with Cu Kα radiation and the diffraction
angles of 2θ=10–60° range, Bruker Tensor27 Fourier transform
infrared (FTIR) spectrometer with KBr as a diluting agent—operated in
400–4000 cm−1 range, transmission electron microscope (TEM)—carried
out on a JEM-2010 JEOL TEM at 200 kV.