摘要
利用ESR电子自旋捕捉技术,研究了甲酸钠,乙酸钠,草酸钾等羧酸盐的水溶液及其含有AgBr的分散体系在不同光照条件下自由基的产生.结果表明:某些羧酸盐(特别是甲酸盐)自身具有光解性,而且AgBr的存在对其光解过程有促进作用.这对研究羧酸盐掺杂乳剂尤其是甲酸盐掺杂乳剂的增感机理有重要意义.
Free radicals generated during different illumination conditions of HCOONa,K2C2O4, and CH3COONa solutions with or without AgBr grains dispersed were investigated by ESR spin trapping.The ESR spectra of different radicals were detected.The results indicated that some carboxylates,especially formate,were of a sensitive photodecomposition and could be enhanced by AgBr grains under illumination.These results were believed to be quite helpful,particularly to study on the mechanism of sensitization for some doped emulsions with carboxylates,such as formate etc.
出处
《感光科学与光化学》
CSCD
北大核心
2003年第2期89-94,共6页
Photographic Science and Photochemistry
基金
国家自然科学重点基金(20033010)
美国Kodak公司资助项目
