Synthesis and photocatalytic performance of europium-doped graphitic carbon nitride  

作　　者：徐冬冬 李晓妮 刘娟 黄浪欢 

机构地区：[1]Department of Chemistry, Jinan University

出　　处：《Journal of Rare Earths》2013年第11期1085-1091,共7页稀土学报（英文版）

基　　金：supported by National Natural Science Foundation of China(20801023);the Fundamental Research Funds for the Central Universities(51208024)

摘　　要：Europium-doped graphitic carbon nitride was synthesized by an easy method and characterized by X-ray diffraction （XRD）, ultraviolet-visible diffuse reflection spectroscopy （UV-Vis DRS）, Fourier transform infrared spectroscopy （FTIR）, photolu- minescence spectra （PL） and transmission electron microscopy （TEM）. The effect of dopant concentration on the rate of photocata- lytic degradation was investigated through degrading methylene blue aqueous solution. The results indicated that the europium-doped samples all possessed increased photocatalytic activity and the optimal europium content was 0.38 wt.%. Moreover, a possible photo- catalytic mechanism for the europium-doped graphitic carbon nitride was proposed.Europium-doped graphitic carbon nitride was synthesized by an easy method and characterized by X-ray diffraction （XRD）, ultraviolet-visible diffuse reflection spectroscopy （UV-Vis DRS）, Fourier transform infrared spectroscopy （FTIR）, photolu- minescence spectra （PL） and transmission electron microscopy （TEM）. The effect of dopant concentration on the rate of photocata- lytic degradation was investigated through degrading methylene blue aqueous solution. The results indicated that the europium-doped samples all possessed increased photocatalytic activity and the optimal europium content was 0.38 wt.%. Moreover, a possible photo- catalytic mechanism for the europium-doped graphitic carbon nitride was proposed.

关 键 词：graphitic carbon nitride EUROPIUM PHOTOCATALYTIC SYNTHESIS DOPING rare earths 1 

分 类 号：O643.36[理学—物理化学]