论文部分内容阅读
Zn(Ⅱ)-doped graphitic carbon nitride (g-C3N4) with high photodegradation activity was prepared by one facile step.The morphology and structure of the prepared Zn(Ⅱ)-doped g-C3N4 were investigated,and the results showed that Zn(Ⅱ) could self-disperse during the pyrolysis process and Zn-N bond was formed between g-C3N4 and Zn.The dope of Zn(Ⅱ) influenced the structure of g-C3N4.The performance of photocatalytic activity of Zn(Ⅱ)-doped g-C3N4 series indicated that the doped g-C3N4 with a small quantity of Zn (0.10 wt％) exhibits the best photocatalytic performance.The photodegradation activity for methyl orange was 2 times higher than that of pure g-C3N4.However,the photocatalytic activity decreased with the further increased content of Zn,which may be attributed to the structure change of g-C3N4 and the interaction of Zn-N bond between Zn and g-C3N4.Moreover,Zn(Ⅱ)-doped g-C3N4 showed good recycling photocatalytic stability.