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Reducing toxicity of atrazine using subcritical hydrolysis technology and investigation the hydrolysis mechanism
Shuo Pan1,2, Huaiyu Zhou2, Shuang Wu2
1Engineering Research Centre of Oil Shale Comprehensive Utilization, Ministry of Education, Northeast Electric Power University, Jilin, 132012, China.
Abstract:
In this study, subcritical hydrolysis method was used to eliminate the toxicity of atrazine (AT) by converting it to products with little or no toxicity. The mechanistic pathway for this conversion and the rate of the hydrolysis reaction were investigated by adjusting the hydrolysis temperature and reaction time. The results showed that under the optimal reaction conditions of 280 °C for 30 min, the hydrolysis rate of AT was 100%. A gas chromatography-mass spectrometry (GC-MS) analysis indicated a total of 28 hydrolysis products generated from AT through reactions such as dechlorination, hydroxylation, amination, methylation, isomerization, and mineralization, resulting in complete hydrolysis of AT and its toxic products. In conclusion, it has been demonstrated that subcritical hydrolysis technology could eliminate the toxicity of AT by hydrolyzing it into harmless products. This strategy provides a powerful approach to the advancement of sustainable agriculture while preserving the ecological environment.
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