Vibrational spectra and nuclear site group analysis of flake-like CrSbO4 nanomaterial

Effect of Calcination Temperature on the Structural and Optical Properties of FeSbO4 Nanostructures

“…[33,34] The position and intensity of these individual absorption bands contribute to the overall spectrum. [35] The bands observed at lowfrequency region can be attributed to metal oxygen (Fe-O and Sb-O modes) stretching vibrations, respectively. [33,36] The presence of low frequency peaks also provides evidence for Fe-Sb complex formed.…”

“…It is observed that Fe-O stretching frequencies fall into the region 850-750 cm −1 and bend into the region 740-620 cm −1 . [34] The spectral features at regions 740, 650, and 460-600 cm −1 are attributed to Sb-O-Sb, Fe-O-Sb, and O-Fe-O bonding, [35] respectively. As Sb-O-Sb bonding mode falls around 740 cm −1 , for the entire range of samples calcinated at different temperature a single prominent peak in the range 740 cm −1 can be ascribed to Sb-O bond or Sb-O stretching, [33,35,36] and as temperature increases this bond disappears and leaves Fe-Sb-O bond.…”

“…[34] The spectral features at regions 740, 650, and 460-600 cm −1 are attributed to Sb-O-Sb, Fe-O-Sb, and O-Fe-O bonding, [35] respectively. As Sb-O-Sb bonding mode falls around 740 cm −1 , for the entire range of samples calcinated at different temperature a single prominent peak in the range 740 cm −1 can be ascribed to Sb-O bond or Sb-O stretching, [33,35,36] and as temperature increases this bond disappears and leaves Fe-Sb-O bond. Moreover, there are no prominent bonds observed in the range 1500-4000 cm −1 , hence confirming the absence of broad peaks corresponding to the hydroxyl bands of adsorbed water.…”

“…It is observed that Fe-O stretching frequencies fall into the region 850-750 cm −1 and bend into the region 740-620 cm −1 [34]. The spectral features at regions 740, 650, and 460-600 cm −1 are attributed to Sb-O-Sb, Fe-O-Sb, and O-Fe-O bonding,[35] respectively. As Sb-O-Sb bonding mode falls around 740 cm −1 , for the entire range of samples calcinated at different temperature…”

“…The analysis presents the distinct broad band characteristics of a non-symmetrical antimonate rutile structure [33,34]. The position and intensity of these individual absorption bands contribute to the overall spectrum [35]. The bands observed at lowfrequency region can be attributed to metal oxygen (Fe-O and Sb-O modes) stretching vibrations, respectively [33,36].…”