Quantitative analysis the role of reactive oxygen species (ROS) in a Fe/Cu/O3 process for p-nitrophenol treatment

被引：1
|
作者：
Xiong, Z. K. [1 ]
Lai, B. [1 ]
Yang, P. [1 ]
机构：
[1] Sichuan Univ, Sch Architecture & Environm, Dept Environm Sci & Engn, Chengdu 610065, Sichuan, Peoples R China
来源：
8TH INTERNATIONAL CONFERENCE ON ENVIRONMENT SCIENCE AND ENGINEERING (ICESE 2018) | 2018年 / 167卷
基金：
中国国家自然科学基金;
关键词：
CATALYTIC OZONATION; AQUEOUS-SOLUTION; WASTE-WATER; GAMMA-FEOOH; DEGRADATION; EFFICIENCY; PNP;
D O I：
10.1088/1755-1315/167/1/012007
中图分类号：
X [环境科学、安全科学];
学科分类号：
08 ; 0830 ;
摘要：
In this study, a highly efficient catalytic ozonation with Fe/Cu bimetallic catalyst was developed for p-nitrophenol (PNP) aqueous solution treatment. The result shows that the high COD removal (94.1%) was obtained by the Fe/Cu/O-3 process, owing to the strong synergetic effect between Fe/Cu and ozone. In addition, the COD removal (94.1%) obtained by the Fe/Cu/O-3 process after 30 min treatment is twice more than the sum (45.2%) of COD removal efficiencies obtained by sole ozone and sole Fe/Cu. These results confirm that the synergetic effect between Fe/Cu and ozone played a vital role in the degradation of PNP in aqueous solution. Additionally, the formed corrosion products in exhibited high catalytic ability for ozone decomposition, which could generate more center dot OH to degrade PNP in aqueous solution. Finally, the role of various reactive oxygen species (ROS) was quantitative analyzed by a series of trapping experiments.
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页数：6
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