Photoluminescent Properties of CoMoO_(4)Nanorods Quickly Synthesized and Annealed in a Domestic Microwave Oven  

作　　者：Ana P.de Moura Larissa H.de Oliveira Paula F.S.Pereira Ieda L.V.Rosa Máximo S.Li Elson Longo Jose A.Varela 

机构地区：[1]Chemistry Institute,University of Sao Paulo State,Araraquara,Brazil [2]Chemistry Department,Federal University of Sao Carlos,Sao Carlos,Brazil [3]Physical Institute,University of Sao Paulo,Sao Carlos,Brazil

出　　处：《Advances in Chemical Engineering and Science》2012年第4期465-473,共9页化学工程与科学期刊（英文）

基　　金：financial support of Brazilian agencies CNPq,FAPESP and CAPES.

摘　　要：A simple way to prepare α- and β-CoMoO4 nanorods is reported in this paper. CoMoO4xH2O nanorod precursors were obtained using the microwave-assisted hydrothermal (MAH) method. By annealing the as-prepared CoMoO44xH2O precursor at 600℃ for 10 min in a domestic microwave oven, α- and β-CoMoO4 nanorods were prepared. These powders were analyzed by X-ray diffraction (XRD), field emission scanning electron microscopy (FE-SEM), Fourier transform Raman microscopy and ultraviolet visible absorption spectroscopy (UV-vis spectra) as well as photoluminescence (PL) measurements. Based on the results, these materials revealed nanorod morphology. PL spectra obtained at room temperature for α- and β-CoMoO4 particles exhibited maximum components around the blue light emission. The results show that the domestic microwave oven has been successfully employed to obtain α- and β-CoMoO4 nanoparticles.A simple way to prepare α- and β-CoMoO4 nanorods is reported in this paper. CoMoO4xH2O nanorod precursors were obtained using the microwave-assisted hydrothermal (MAH) method. By annealing the as-prepared CoMoO44xH2O precursor at 600℃ for 10 min in a domestic microwave oven, α- and β-CoMoO4 nanorods were prepared. These powders were analyzed by X-ray diffraction (XRD), field emission scanning electron microscopy (FE-SEM), Fourier transform Raman microscopy and ultraviolet visible absorption spectroscopy (UV-vis spectra) as well as photoluminescence (PL) measurements. Based on the results, these materials revealed nanorod morphology. PL spectra obtained at room temperature for α- and β-CoMoO4 particles exhibited maximum components around the blue light emission. The results show that the domestic microwave oven has been successfully employed to obtain α- and β-CoMoO4 nanoparticles.

关 键 词：PHOTOLUMINESCENCE NANORODS MOLYBDATES Microwave-Hydrothermal Method 

分 类 号：O6[理学—化学]