摘要
实验结果表明 ,稀土离子与N ,N 二 (吡咯烷 2 酮 1 亚甲基 ) β 丙氨酸 (PMA)及邻菲咯啉 (phen)的三元水溶液体系具有光致变色现象。在太阳光或汞灯照射下 ,原来的黄色溶液可转变成绿色 ,避光后 ,溶液又恢复至黄色。用激发光谱、荧光光谱和紫外光谱对该体系进行了研究。结果表明 ,体系的 pH值对体系的光致变色有影响。
The RE 3+-N,N-bis(2-pyrrolidone-1-methylene)-β-alanine(PMA)-o-phenathroline(phen) ternary systems were prepared. The ternary systems were found to exhibit photochromic property. Under illumination of sunlight or mercury arc lamp in an aqueous solution their color could change from yellow to green and faded back to the original yellow color, when the illumination was shutting down. The effect of pH value of the aqueous solution on the photochromism of the system has been investigated in relation with the excitation, emission of the Eu 3+-PMA-phen system and absorption spectra of the Dy 3+-PMA-phen system.
出处
《应用化学》
CAS
CSCD
北大核心
2003年第12期1196-1199,共4页
Chinese Journal of Applied Chemistry
基金
北京市自然科学基金 ( 2 0 2 2 0 0 7)
北京市留学人员科技活动择优项目
国家教委留学回国人员科研启动基金资
