Degradation of organophosphorus pesticide induced by oxygen plasma: effects of operating parameters and reaction mechanisms

Chemosphere
Yanhong BaiChunhong Zhang

Abstract

The degradation effectiveness and degradation mechanism of representative organophosphorus (OP) pesticide during oxygen plasma treatment have been studied. The identification and quantitative determination of OP pesticide, the degradation mechanisms for OP pesticide destruction, its destruction intermediates, and by-products were performed using gas chromatography/mass spectrometry (GC/MS). Plausible mechanisms of the degradation are discussed. Experimental results indicate that oxygen plasma treatment has noticeable effects on OP pesticide with satisfactory degradation efficiency, which mainly depends on related operating parameters including plasma treatment time, discharge power, distance from the center of the induction coil, and concentrations of OP pesticide. It was found that OP pesticide was degraded into less-toxic compounds, and free radical reaction and addition reaction were to be the dominated the degradation mechanisms for OP pesticides treated by oxygen plasma. Therefore, our results suggest that oxygen plasma is suitable for degradation of OP pesticide.

References

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Citations

Jul 19, 2012·World Journal of Microbiology & Biotechnology·Chang-jun HouCai-hong Shen
Jul 10, 2013·Bulletin of Environmental Contamination and Toxicology·Yingmei HuJierong Chen
Feb 3, 2016·Environmental Science and Pollution Research International·Pauline JacquetEric Chabrière
Dec 16, 2011·Journal of Hazardous Materials·Yuezhong WenFeng Yu
May 25, 2015·Environmental Science and Pollution Research International·Li ZhangDongfeng Wang
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Mar 18, 2015·Biointerphases·Alex ShawFelipe Iza
Mar 30, 2019·Critical Reviews in Food Science and Nutrition·Mohsen Gavahian, Amin Mousavi Khaneghah
Jul 11, 2020·Journal of the Science of Food and Agriculture·Laixin CongWenjing Yan
May 17, 2019·Journal of the Science of Food and Agriculture·Xinxin FengRui Fan
Jun 3, 2021·International Journal of Environmental Research and Public Health·Yuming ZhangShaohua Chen
Jun 26, 2021·Environmental Science and Pollution Research International·Farahnaz RezaeiAmene Nematollahi
Jul 3, 2021·International Journal of Molecular Sciences·Bayan KhalafSubhi Samhan
Jul 30, 2021·International Journal of Biological Macromolecules·Yuting LiYixiang Duan

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