Abstract
Zinc oxide (ZnO) nanorods have been successfully synthesized by modified Pechini process. The as-synthesized ZnO nanorods were characterized by X-ray diffraction, scanning electron microscope, Raman spectrum, ultraviolet–visible (UV–vis) spectrum. X-ray diffraction result shows that the ZnO nanorods are oriented in wurtzite phase. Raman spectroscopy measurements revealed the presence of E2 (high) mode at 437 cm−1 indicating the high crystallinity of the as-synthesized ZnO nanorods. The optical property of the ZnO nanorods were studied from their UV–vis spectroscopy analysis which exhibits the absorbance at 373 nm corresponds to the Zn–O absorption. A mechanism for modified Pechini process for the synthesis of ZnO nanorods using citric acid–ethylene glycol precursor has also been proposed.
Highlights
Materials and methodsZinc nitrate hexahydrate (Zn(NO3)2Á6H2O), citric acid and ethylene glycol were purchased from Merck chemicals, India
Zinc oxide (ZnO) nanorods have been successfully synthesized by modified Pechini process
Raman spectroscopy measurements revealed the presence of E2 mode at 437 cm-1 indicating the high crystallinity of the as-synthesized ZnO nanorods
Summary
Zinc nitrate hexahydrate (Zn(NO3)2Á6H2O), citric acid and ethylene glycol were purchased from Merck chemicals, India. Nitric acid was obtained from SD fine chemicals. Nitric acid was distilled in quartz apparatus before its use. All materials used in this study were of research grade
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