氧化石墨烯/氧化铕复合粉体的制备及性能研究
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摘要
以氧化石墨烯和氧化铕为原材料,利用水热法合成了氧化石墨烯/氧化铕复合粉体。对不同氧化石墨烯加入量的复合粉体采用扫描电镜、差热分析、荧光分析等测试方法对其进行表征。结果表明:利用水热合成的方法成功制备了氧化石墨烯/氧化铕复合粉体;氧化铕包裹在氧化石墨烯表面,阻止了氧化石墨烯表面部分官能团的分解,复合粉体的稳定性较好;由荧光激发光谱可知复合粉体的荧光激发波长为435 nm;由荧光发射光谱可知,随着氧化石墨烯的质量分数从6%增大到10%时,复合粉体的荧光强度依次增强。
Graphene oxide/Eu_2O_3 composite powder were prepared by hydrothermal synthesis with graphene oxide and Eu_2O_3 as raw materials. The composite powder with different amounts of graphene oxide were characterized by scanning electron microscope,differential thermal analysis and fluorescence analysis. The experimental results show that graphene oxide/Eu_2O_3 composite powder can be successfully prepared by hydrothermal synthesis;The surface of graphene oxide is coated by Eu_2O_3,which preventing the decomposition of some functional groups on the surface of graphene oxide,and the composite powder has better stability;The fluorescence emission wavelength of the composite is 435 nm through fluorescence excitation spectra analysis,and the fluorescence intensity of the composite increases with the increase of graphene oxide content from 6% to 10%(mass percent).
Graphene oxide/Eu_2O_3 composite powder were prepared by hydrothermal synthesis with graphene oxide and Eu_2O_3 as raw materials. The composite powder with different amounts of graphene oxide were characterized by scanning electron microscope,differential thermal analysis and fluorescence analysis. The experimental results show that graphene oxide/Eu_2O_3 composite powder can be successfully prepared by hydrothermal synthesis;The surface of graphene oxide is coated by Eu_2O_3,which preventing the decomposition of some functional groups on the surface of graphene oxide,and the composite powder has better stability;The fluorescence emission wavelength of the composite is 435 nm through fluorescence excitation spectra analysis,and the fluorescence intensity of the composite increases with the increase of graphene oxide content from 6% to 10%(mass percent).
引文
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