期刊
JOURNAL OF HAZARDOUS MATERIALS
卷 423, 期 -, 页码 -出版社
ELSEVIER
DOI: 10.1016/j.jhazmat.2021.126944
关键词
Enteromorpha biochar; G-C3N4; Band structure engineering; Photocatalytic degradation; Antibiotics removal
资金
- National Natural Science Foundation of China [51909089]
- Natural Science Foundation of Hunan Province, China [2020JJ5252]
- China Postdoctoral Science Foundation [2019M662781]
- Research Foundation of Education Bureau of Hunan Province, China [20B304]
- Sci-ence Foundation for Young Scholars of Hunan Agricultural University [19QN35]
- Hunan Provincial Innovation Foundation for Post-graduate [CX20200663]
Enteromorpha biochar modified g-C3N4 (BC/CN) was synthesized and applied to efficiently degrade tetracycline, showing good performance under different environmental conditions.
Enteromorpha biochar modified g-C3N4 (BC/CN) was synthesized and applied to degrade tetracycline by activating PMS under visible light, obtaining around 90% removal rate within 1 h. The Enteromorpha biochar can provide electron-withdrawing groups to adjust the electronic structure of g-C3N4, and induces more pi-pi interaction to decline the recombination of photocarriers. The environmental adaptability of the BC/CN/PMS/vis system was confirmed by the TC degradation in different initial pH, coexisting ions, and natural organic materials. In most cases, the system maintained over 78% degradation rate. The kinetics and mechanism of the system indicating that center dot O-2(-), O-1(2) contributed more to the TC photocatalytic degradation than center dot OH, SO4.-, and h(+). During the process, TC underwent serials hydroxylation, demethylation, and ring-opening processes, and produced more than 40 intermediates in three pathways. Moreover, the BC/CN/PMS/vis system was proved to have at least a 50% degradation rate for more tetracyclines and quinolone antibiotics with the same condition.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据