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

被引：6
|
作者：
Zhang, Qiuya [1 ]
Wang, Liping [1 ]
Peng, Hui [1 ]
Jiang, Shanqing [1 ]
Xu, Xia [1 ]
Xu, Jun [1 ]
Xu, Kailin [1 ]
机构：
[1] Changzhou Univ, Sch Environm & Safety Engn, Changzhou 213164, Peoples R China
来源：
CATALYSIS COMMUNICATIONS | 2021年 / 149卷
基金：
中国国家自然科学基金;
关键词：
G-C3N4; Bi4O5I2; Heterojunction; Photocatalytic degradation; Eutrophic water; GRAPHITIC CARBON NITRIDE;
D O I：
10.1016/j.catcom.2020.106200
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
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 Bi4O I-5(2).
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页数：5
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