|About this Abstract
||2017 TMS Annual Meeting & Exhibition
||Pan American Materials Congress: Advanced Biomaterials
||Optical Properties of CeO2@ZnO Core@shell Nanostructures Synthesized by Solvothermal Method
||Saeed Farhang, Felipe Sanhueza, Pandiyarajan Thangaraj, Mangalaraja Ramalinga Viswanathan
|On-Site Speaker (Planned)
Cerium oxide (CeO2) and zinc oxide (ZnO) are the important rare earth and semiconductor oxides used in sun protection cream due to their strong absorption of ultraviolet radiation. The present work aimed to synthesis CeO2, ZnO nanoparticles and their CeO2@ZnO core@shell nanostructure by solvothermal method. To explore the structural and optical properties, the synthesized nanomaterials were characterized using X-Ray diffraction (XRD), UV-visible and photoluminescence (PL) spectroscopies. The structural results confirmed that the synthesized nanomaterials calcined at 500C were completely crystalline nature with cubic and hexagonal wurtzite structures for CeO2 and ZnO, respectively. The observed peaks of both CeO2 and ZnO confirmed the formation of core@shell nanostructure. The optical absorption spectra showed bands at 291 and 356 nm that ascribed to the absorption of CeO2 and excitonic absorption of ZnO bands, respectively. The photoluminescence measurement was carried out at an excitation wavelength of 330 nm.
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