Synthesis and characterization of binary (CuO)0.6(CeO2)0.4 nanoparticles via a simple heat treatment method

• Published in: Results in physics 2018-06, Vol.9, p.471-478
• Main Authors: Baqer, Anwar Ali, Matori, Khamirul Amin, Al-Hada, Naif Mohammed, Shaari, Abdul Halim, Kamari, Halimah Mohamed, Saion, Elias, Chyi, Josephine Liew Ying, Abdullah, Che Azurahanim Che
• Format: Article
• Language: English
• Subjects: Calcination temperatures; CeO2 nanoparticles; CuO nanoparticles
• ISSN: 2211-3797; 2211-3797
• DOI: 10.1016/j.rinp.2018.02.079

•Binary of (CuO)0.6(CeO2)0.4 nanoparticles was successfully synthesized by thermal treatment technique.•PVP agent played a role in stabilizing Binary of (CuO)0.6(CeO2)0.4 nanoparticles with enhanced properties.•Particle’s size was observed to increase with increasing calcination temperature.•Energy band gap enhanced as it decreases with increasing calcination temperature. A binary (CuO)0.6 (CeO2)0.4 nanoparticles were prepared via thermal treatment method, using copper nitrate, cerium nitrate as precursors, PVP as capping agent and de-ionized water as a solvent. The structures, morphology, composition of the element and optical properties of these nanoparticles have been studied under different temperatures using various techniques. The XRD spectrum of the samples at 500 °C and above confirmed the existence of both monoclinic (CuO) and cubic fluorite (CeO2) structures. The findings of FESEM and TEM exhibited the average practical size and agglomeration increment with an elevation in the calcination temperature. The synthesized nanoparticles were also characterized by FTIR, which indicated the formation of binary Cu−O and Ce−O bonds. The EDX analysis was performed to indicate the chemical composition of the sample. The double energy band gaps of (CuO)0.6(CeO2)0.4 reduction with rising calcination temperature, can be referred to the enhancement of the crystallinity of the samples. PL intensity of (CuO)0.6(CeO2)0.4 nanoparticles peaks, which increased with the elevation of the calcination temperature to 800 °C was observed from the PL spectrum; this was due to the increment of the particle size that occurred.