Preparation of Phosphorus and Oxygen Co-Doped With Graphite Carbon Nitride and Its Application in Photodegradation of Methylene Blue

3rd International Symposium on Resource Exploration and Environmental Science

生态环境科学

Hu, Fengping^1 ; Luo, Wendong^1 ; Peng, Xiaoming^1 ; Hu, Yuying^1 ; Dai, Hongling^1

School of Civil Engineering and Architecture, East China Jiaotong University, Nanchang, Jiangxi Province, China^1

关键词: Forbidden band;    Graphite carbon;    ITS applications;    Photo catalytic degradation;    Photocatalytic performance;    Photodegradation of methylene blue;    Thermal copolymerization;    Visible light;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/300/5/052054/pdf
DOI  :  10.1088/1755-1315/300/5/052054

学科分类：环境科学（综合）

来源: IOP

【 摘 要 】

In this study, phosphorus and oxygen co-doped graphite carbon nitride has been successfully prepared by simple thermal copolymerization. The as-prepared materials were characterized by SEM, XRD, XPS and UV-vis-DRS. The results showed that phosphorus and oxygen were successfully doped on the structure of graphite carbon nitride. Photocatalytic degradation of MB in solution by the catalyst has been studied, POCN-1 has the best photocatalytic activity among of the as prepared materials, photocatalytic degradation rate of MB is 10.6 times higher than that of g-C3N4. The main reason for its enhanced photocatalytic performance is that the co-doped of phosphorus and oxygen elements would change the electronic structure of g-C3N4, reduce the forbidden band width of the photocatalyst. At the same time, can extend the absorption boundary of visible light.