Facile synthesis and optical properties of Co3O4 nanostructures by the microwave route |
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| Authors: | Reem Al-Tuwirqi AA Al-Ghamdi Nadia Abdel Aal Ahmad Umar Waleed E Mahmoud |
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| Institution: | 1. Department of Physics, Faculty of Science, King Abdulaziz University, Jeddah, Saudi Arabia;2. Department of Chemistry, Faculty of Science, Suez Canal University, Ismailia, Egypt;3. Centre for Advanced Materials and Nano-Engineering (CAMNE), Najran University, P.O. Box 1988, Najran 11001, Saudi Arabia |
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| Abstract: | Cobalt oxide (Co3O4) nanoplatelet shape like nanostructures have been successfully synthesized through a simple microwave route for the first time using cobalt acetate, NaOH and citric acid at 200 °C for 30 min. The structure and morphology of as-prepared Co3O4 nanoplatelets are characterized by means of powder X-ray diffraction (XRD), Fourier transform infrared spectrum (FTIR), and scanning electron microscope (SEM). XRD measurements indicate that the product has a perfect crystalline cubic phase of Co3O4 with a lattice constant a=8.082 Å. The SEM images show that the obtained Co3O4 nanopowder consists of nanoplatelets with diameter 125 nm and thickness 20 nm. Energy-dispersive X-ray spectroscopy (EDS) show that the composition of Co3O4 is stoichiometric. Room temperature photoluminescence measurement is exhibited by a strong UV emission and a suppressed green emission, confirming the good optical properties for the as-prepared Co3O4 nanoplatelets. |
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| Keywords: | Microwave synthesis Metal oxide nanostructure Nanoplatelets Optical properties |
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