光催化
催化作用
化学
氧氟沙星
光化学
激进的
降级(电信)
食腐动物
硼氢化钠
电子转移
可见光谱
羟基自由基
四环素类抗生素
四环素
化学工程
组合化学
材料科学
抗生素
有机化学
工程类
电信
生物化学
环丙沙星
光电子学
计算机科学
作者
Sangeeta Adhikari,Hong H. Lee,Do‐Heyoung Kim
标识
DOI:10.1016/j.cej.2019.123504
摘要
A novel Z-scheme MoO3/Ag/C3N4 composite catalyst is presented that can be constructed by simple and reliable hydrothermal and borohydride reduction methods. The catalyst exhibits excellent visible-light photocatalytic activity in degrading ofloxacin, as evidenced by more than a threefold increase in the rate of degradation compared to the catalysts with only Ag or MoO3 alone on C3N4. Scavenger reactions suggest that hydroxyl and superoxide radicals are the major reactive species for the catalytic process. The hydroxyl radical generation in the MoO3/Ag/C3N4 catalyst is aided by Ag nanoparticles, acting as a mediator of fast charge transfer through MoO3 and C3N4. The MoO3/Ag/C3N4 catalyst, whose performance in terms of a measure of performance utilized here exceeds that of one of the best photocatalysts for the degradation of ofloxacin, also outperforms one of the best photocatalysts for the removal of the other major type of antibiotic of tetracycline.
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