Construction of g-C3N4/Bi4O5I2 heterojunction via the solvothermal method for the purification of eutrophic water

Catalysis Communications

Liping Wang¹  Qiuya Zhang²  Jun Xu³  Hui Peng³  Xia Xu³  Shanqing Jiang³  Kailin Xu³ 

[1] School of Environmental and Safety Engineering, Changzhou University, 213164 Changzhou, China;Corresponding author.;School of Environmental and Safety Engineering, Changzhou University, 213164 Changzhou, China;

关键词: G-C3N4;    Bi4O5I2;    Heterojunction;    Photocatalytic degradation;    Eutrophic water;   

DOI  :  

来源: DOAJ

【 摘 要 】

Heterojunction photocatalysts of g-C3N4/Bi4O5I2 were designed through the solvothermal method. A series of characterizations were used to analyze the structure, morphology, and optical and electronic characteristics of g-C3N4/Bi4O5I2 composite. Bi4O5I2 was successfully dispersed on the surface of g-C3N4. The 3 wt%-g-C3N4/Bi4O5I2 catalyst had the highest photocatalytic activity in eutrophic water. The degradation efficiency of chemical oxygen demand (CODMn), total nitrogen (TN), and chlorophyll a (Chl-a) was as high as 90.1%, 60.2%, and 66.1%, respectively. Based on the band structure analysis, the purification can be attributed to the transfer and separation of holes (h+) and electrons (e−) between g-C3N4 and Bi4O5I2.

【 授权许可】

Unknown