Large Scale Synthesis of Zinc Oxide Nano- and Submicro-Structures by Pechinis Method: Effect of Ethylene glycol/Citric Acid Mole Ratio on Structural and Optical Properties
作者： Reza Shoja Razavi , Mohammad Reza Loghman-Estarki , Masoud Farhadi-Khouzani , Masoud Barekat , Hossein Jamali
DOI: 10.2174/157341311797483745
关键词:
摘要: Znic oxide nano- and submicro-structures have been synthesized controllably by the polymeric precursor method (Pechini). In this approach, zinc acetate Zn(CH3COO)2.2H2O, citric acid ethylene glycol were used as source of Zn 2+ , chelating agent connecting agent, respectively. The microstructure ZnO was characterized X-ray diffracto- metry (XRD) scanning electron microscopy (SEM) with energy dispersive spectroscopy (EDX), transmission mi- croscopy (TEM), thermogravimetric analysis (TGA), Fourier transform infrared (FT-IR). effect to mole ratio on morphology structure products discussed. Different morphologies such nanoparticles, circu- lar hexagonal submicro-rods achieved changing EG:CA ratio. obtained equal 4:1.The optical property investigated room temperature photoluminescence (PL) spectra. Rod-like spherical nanostructures show strong UV emission but both (at �384 nm) green � 510 are observed in PL
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