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Physical, Optical and Photochemical Properties of CeO2 Nanoparticles Synthesized by Solution Combustion Method

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Cerium oxide (CeO2) nanoparticles were successfully synthesized by solution combustion method using cerium nitrate and urea. The prepared sample was characterized by X-Ray Diffraction (XRD), Fourier Transform Infra-red Spectroscopy (FTIR), Ultraviolet (UV) and Photoluminescence (PL), Field Emission Scanning Electron Microscopy (FESEM), High Resolution Transmission Electron Microscope (HRTEM), Thermogravimetric-Differential Thermal Analysis (TG-DTA) and photocatalytic measurements. The XRD results confirmed that the synthesized nanocrystalline CeO2 samples have cubic structure with average grain size about 12, 18 and 26 nm (as prepared at 120 °C, sintered at 300 °C and sintered at 600 °C respectively). The HRTEM results confirmed that the synthesized nanoparticles have good polycrystalline nature. In the PL spectra, a strong and broad emission band was observed at 425 nm due to the presence of blue shift in the visible region. The TEM results revealed that the synthesized CeO2 nanoparticles were sphere shaped particles of size in the range 10–15 nm. The degradation of methylene blue catalysed by CeO2 nanoparticles was studied under visible light irradiation. The maximum degradation was obtained with 1.0 g/L CeO2 at pH 11 within 5 hours.
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Keywords: CEO2 NANOPARTICLE; DEGRADATION OF METHYLENE BLUE; ELECTRON MICROSCOPY; PHOTOLUMINESCENCE; SOLUTION COMBUSTION; THERMAL STUDIES; VISIBLE LIGHT IRRADIATION

Document Type: Research Article

Publication date: March 1, 2017

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  • Journal of Advanced Physics is an interdisciplinary peer-reviewed journal consolidating research activities in all experimental and theoretical aspects of advanced physics. The journal aims in publishing articles of novel and frontier physics that merit the attention and interest of the whole physics community. JAP publishes review articles, full research articles, short communications of important new scientific and technological findings in all latest research aspects of physics.
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