紫外照射下正丁醇溶液的吸收光谱及荧光光谱研究

Study of 1-Butanol Absorption and Fluorescence Spectra Induced by UV-Light

分别从实验和理论上对紫外光激励下正丁醇溶液的吸收光谱和荧光光谱及其特性进行了分析研究,发现正丁醇对190～250nm的紫外光都有很好的吸收,在210～250nm激发下会发射出明显的荧光;以220nm激发不同体积比混合的正丁醇和正己烷溶液,发现随着正丁醇体积比的增加,荧光强度逐渐增强,且基本成线性关系;同时还测量了正丁醇溶于乙醇后的荧光光谱,发现在不同波长紫外光照射下,不同配比的正丁醇乙醇溶液的荧光强度变化规律也有所不同。另外,文章给出了混合溶液荧光峰值位置的数学表达式,其计算值与实验值相比误差较小,这或许将对醇类物溶液荧光光谱的进一步研究有一定参考意义。

The absorption and fluorescence spectra of 1-butanol solution induced by UV-light and its characteristics were studied experimentally and theoretically. The authors found that 1-butanol solution shows a good absorption in 190-250 nm, and fluorescence was detected when excited by 210-250 nm. Fluorescence spectra of the mixed solution with 1-butanol and n-hexane were measured, and the fluorescence intensity shows a linear relationship with the volume ratio of the former. For the mixed solution of 1-butanol and alcohol, the authors found that at different wavelength, as the matching of 1-butanol and alcohol solution changes, the law for the intensity of fluorescence also changes. Meanwhile, the mathematical formula for the fluorescence position of the mixed solution was listed, and the error between calculation and experiment has been proved to be small. This may provide some reference for the further research of fluorescence spectrum of alcohol resolutions.