It is preliminary studied the ultraviolet absorption character of CeO2 nanoparticles were used for degrading helianthine with the help of the 721-type spectrophotometer.
本试验借助于721分光光度计对纳米二氧化铈的紫外吸收光降解性能进行了初步研究。
The ultraviolet absorption peak narrows, absorption intensity increases, the absorption margin becomes steep and moves to longer wavelength, the optical band gap decreases as well.
紫外吸收峰变窄，强度增加，吸收边变得陡峭并向长波方向移动，光学带隙降低。
The ultraviolet absorption in aqueous solutions, fluorescence emission properties, photoinduced isomerization phenomena and application properties of the two kinds of FBs were observed.
对比研究这两类增白剂在水溶液中的紫外吸收、荧光发射、光致异构化现象及其应用性能。
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