Flower-like zinc oxalate with a mean diameter of 50 μm was synthesized via the reaction of zinc acetate and dimethyl oxalate in ether-water bilayer refluxing systems at low temperature.Flower-like zinc oxalate micros...Flower-like zinc oxalate with a mean diameter of 50 μm was synthesized via the reaction of zinc acetate and dimethyl oxalate in ether-water bilayer refluxing systems at low temperature.Flower-like zinc oxalate microspheres can be further transformed into the similar morphology to zinc oxide by the decomposition of zinc oxalate at 500℃.Scanning electron microscopy(SEM),X-ray diffraction(XRD),thermogravimetric analysisdifferential scanning calorimetric(TG-DSC),energy dispersive X-ray spectrum(EDX) and Fourier transforminfrared spectroscopy(FT-IR) were used to characterize the structure features and chemical compositions of the as-synthesized products.The UV-Vis and photoluminescence spectrum of flower-like zinc oxide microspheres were studied.The experimental results showed that flower-like zinc oxalate microspheres may be self-assembled by the zinc oxalate flakes.The ether-water volume ratio of 4:1 and refluxing temperature of 40℃ were considered to favor the preparation of flower-like zinc oxalate microspheres.展开更多
基金supported by the National Natural Science Fundation of China (No. 20773109)the Natural Science Foundation of Jiangsu Educational Committee of China (No. 08KJB150005)
文摘Flower-like zinc oxalate with a mean diameter of 50 μm was synthesized via the reaction of zinc acetate and dimethyl oxalate in ether-water bilayer refluxing systems at low temperature.Flower-like zinc oxalate microspheres can be further transformed into the similar morphology to zinc oxide by the decomposition of zinc oxalate at 500℃.Scanning electron microscopy(SEM),X-ray diffraction(XRD),thermogravimetric analysisdifferential scanning calorimetric(TG-DSC),energy dispersive X-ray spectrum(EDX) and Fourier transforminfrared spectroscopy(FT-IR) were used to characterize the structure features and chemical compositions of the as-synthesized products.The UV-Vis and photoluminescence spectrum of flower-like zinc oxide microspheres were studied.The experimental results showed that flower-like zinc oxalate microspheres may be self-assembled by the zinc oxalate flakes.The ether-water volume ratio of 4:1 and refluxing temperature of 40℃ were considered to favor the preparation of flower-like zinc oxalate microspheres.