模拟太阳光作用下间甲酚的水相和冰相光转化研究
INVESTIGATION ON THE PHOTOCONVERSION OF M-CRESOL IN AQUEOUS SOLUTION AND IN ICE UNDER SIMULATED SUNLIGHT
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摘要: 本文研究了在模拟太阳光作用下间甲酚的水相和冰相光转化规律.考察了不同浓度的H2O2、NO2-和NO3-对间甲酚光转化的影响,建立了不同条件下间甲酚光转化的动力学方程.结果表明,在模拟太阳光作用下间甲酚在水相和冰相中均可以发生光转化,间甲酚的冰相光转化速率小于水相.在本实验条件下,H2O2和NO2-促进了间甲酚在水相和冰相中的光转化,NO3-对间甲酚水相光转化的影响不明显,但抑制了间甲酚的冰相光转化.间甲酚的光转化过程均符合一级反应动力学方程.Abstract: This work investigated the photoconversion of m-cresol in aqueous solution and in ice under simulated sunlight irradiation, studied the influence of H2O2,NO2- and NO3- on the photoconversion of m-cresol, and established the kinetics equations of m-cresol photoconversion under different conditions. The results showed that m-cresol underwent photoconversion under simulated sunlight irradiation both in aqueous solution and in ice, and the photoconversion rate of m-cresol in ice was lower than that in aqueous solution. H2O2 and NO2- accelerated the photoconversion of m-cresol in aqueous solution and in ice, while NO3- had little effect on the photoconversion in aqueous solution, but prohibited the photoconversion in ice. The photoconversion of m-cresol all obeyed the first order kinetics equation.
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Key words:
- m-cresol /
- photoconvertion /
- ice /
- aqueous solution
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