摘要
[目的]使用H2O2降解草甘膦,采用响应面法,优化其降解条件。[方法]研究pH、温度、草甘膦质量浓度、H2O2体积分数和反应时间对降解效果的影响,并通过响应面法进行优化。[结果]得到最佳降解条件:pH值为10.68,温度为44.21℃,草甘膦质量浓度为150 mg/L,H2O2体积分数为2.17 mL/L,反应时间为5 h,草甘膦降解率可达80.20%。[结论]在合适的条件下,H2O2能有效降解草甘膦,为草甘膦的降解提供一种可行的方法。
[Aims] Response surface method（RSM） was used to optimize the degradation conditions of glyphosate by H2O2. [Methods] The effects of pH, temperature, initial concentrations of glyphosate and H2O2, reaction time on the degradation results were studied. The degradation conditions were optimized by using RSM. [Results] The optimal degradation conditions were obtained. The results showed that the degradation rate of glyphosate reached 80.20% when pH is 10.68, temperature is 44.21 ℃, reaction time is 5 h, initial concentrations of glyphosate and H2O2 are 150 mg/L and 2.17 mL/L, respectively. [Conclusions] Glyphosate can be effectively degraded by H2O2 at the suitable condition,which provides a feasible method for glyphosate degradation.
出处
《农药》
CAS
CSCD
北大核心
2014年第11期792-795,共4页
Agrochemicals
基金
国家自然科学基金资助项目(31169336)
关键词
H2O2
草甘膦
降解
响应面法
H2O2
glyphosate
degradation
response surface method（RSM）
