Influencing Factors, Kinetics, and Pathways of Pesticide Degradation by Chlorine Dioxide and Ozone: A Comparative Review
Source abstract
Abstract
In agricultural production, pesticides play an important role in increasing crop yields. However, pesticide residues are caused by improper handling by users during the production process. Chlorine dioxide and ozone, as strong oxidants with similarity in spatial structure, effectively degrade pesticide residues and are widely used in water treatment and the food industry. In order to better understand the mechanism of chlorine dioxide and ozone on pesticides, the properties of chlorine dioxide and ozone are introduced in this review. Herbicides, insecticides, and fungicides were selected for this study, and the influencing factors, kinetics, and degradation pathways of degraded pesticides are presented. The degradation of pesticides by chlorine dioxide follows the second-order kinetic model, reacting with functional groups with high electron density in pesticides by electron transfer. Ozone selectively undergoes electrophilic reactions with pesticides in solution. In addition, when the reaction system is alkaline, ozone accelerates the decomposition to form hydroxyl radicals (·OH), which react with pesticides. Ozone degradation of pesticides satisfies the pseudo-first-order kinetic model. By comparing the mechanism of pesticide degradation by chlorine dioxide and ozone, this paper provides a theoretical basis for solving the problem of pesticide residues in the food industry and water treatment in the future.
Source: crossref · Quality: baseline
Research context
OpenAlex topics: Water Quality Monitoring and Analysis · Pharmaceutical and Antibiotic Environmental Impacts · Pesticide Residue Analysis and Safety
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
School of Environment and Safety Engineering, North University of China, Taiyuan 030051, China
Funding
National Key R&D Program of China · fundamental research program of Shanxi Province
References (100+)
Show source-provided references
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