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讨论了紫外光照射乙醇和水混合溶液的荧光光谱及其对应的激发光谱,认为乙醇和水分子混合时会发生团簇形成新的分子从而成为能辐射荧光的物质.采用不同波长的紫外光照射乙醇水溶液,计算了不同入射光的荧光量子产率,进而选取具有最高荧光效率的激励光照射不同混合比率溶液,通过探测混合物所发射的荧光光子数目随乙醇和水混合比率的变化规律,研究了团簇分子的可能类型,并利用荧光强度和吸收率的加和性计算了混合物的总吸收率和总荧光光子数目,从而解释了乙醇水溶液的荧光光谱特征峰.结果可为乙醇和水分子形成的新团簇分子研究提供实验和理论依据.
The fluorescence spectra and the corresponding excitation spectra of the mixed solution of ethanol and water were discussed. It is believed that when ethanol and water molecules are mixed, new molecules will be formed in the clusters to become the substance that can radiate fluorescence.Using different wavelengths of ultraviolet light Ethanol solution to calculate the fluorescence quantum yield of different incident light, and then select the highest fluorescence efficiency of the excitation light irradiation solution of different mixing ratio, by detecting the mixture of fluorescent photons emitted by the ethanol and water mixture ratio changes, the study Cluster molecules possible types and the use of the sum of fluorescence intensity and absorptivity calculated the total absorption rate of the mixture and the total number of fluorescent photons to explain the characteristic peaks of the fluorescence spectrum of ethanol aqueous solution results for the formation of ethanol and water molecules The new cluster molecules provide experimental and theoretical basis.