Synthesis and characterization of ZrO2-CuO co-doped ceria nanoparticles via chemical precipitation method.
In the present study, the fluorite cubic phase of bare and ZrO2-CuO co-doped ceria (CeO2) nanoparticles have been synthesized through a simple chemical precipitation method. X-ray diffraction results revealed that average grain sizes of the samples are within 5-6nm range. The functional groups present in the samples were identified by Fourier Transform Infrared Spectroscopy (FTIR) study. Surface area measurement was carried out for the ceria nanoparticles to characterize the surface properties of the synthesized samples. The direct optical cutoff wavelength from DRS analysis was blue-shifted evidently with respect to the bulk material and indicated quantum-size confinement effect in the nanocrystallites. PL spectra revealed the strong and sharp UV emission at 401nm. The surface morphology and the element constitution of the pure and doped nanoparticles were studied by scanning electron microscope fitted with energy dispersive X-ray spectrometer arrangement. The thermal decomposition course was followed using thermo gravimetric and differential thermal analyses (TG-DTA).
Department of Physics, Annamalai University, Annamalai Nagar, 608 002 Tamil Nadu, India. Electronic address: gvgiri2002@gmail.com.
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Viruthagiri
Department of Physics, Annamalai University, Annamalai Nagar, 608 002 Tamil Nadu, India.
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Gopinathan
Department of Physics, Annamalai University, Annamalai Nagar, 608 002 Tamil Nadu, India.
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Shanmugam
Department of Physics, Annamalai University, Annamalai Nagar, 608 002 Tamil Nadu, India.
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Gobi
D002563:Cerium / Q000737:chemistry*; D011232:Chemical Precipitation; D003300:Copper / Q000737:chemistry*; D053758:Nanoparticles / Q000737:chemistry* / Q000648:ultrastructure; D010316:Particle Size; D017550:Spectroscopy, Fourier Transform Infrared; D014961:X-Ray Diffraction; D015040:Zirconium / Q000737:chemistry*
D002563:Cerium; C030583:ceric oxide; D003300:Copper; D015040:Zirconium; C028541:zirconium oxide; C030973:cupric oxide
Ceria; Fluorite; Nanocrystals; Quantum confinement; UV-DRS