摘要
以9-蒽甲酸(9-ACA)为发光剂,八乙基卟啉钯(Pd OEP)为光敏剂,在二者最佳配比〔n(9-ACA)∶n(Pd OEP)=80∶1〕下,构建了对溶液中氢离子和氢氧根离子具备灵敏响应性的上转换发光体系9-ACA/PdOEP。当pH处于4~8以及8~11时,上转换发光强度均与pH呈现良好的线性关系。参比实验中,单一组分9-ACA本身的荧光强度与pH没有呈现线性关系,证明了9-ACA/Pd OEP体系对于pH的宽范围响应来源于光敏剂与发光剂之间的三线态-三线态能量转移(TTET)过程。
By using anthracene-9-carboxylic acid(9-ACA)as the emitter and palladium(Ⅱ)-octaethylporphyrin(Pd OEP)as the sensitizer,a highly effective p H-responsive triplet-triplet annihilation based upconversion(TTA-UC)system was obtained under their optimal molar ratio of 80∶1.The UC intensity had a good linear relationship with pH value in the pH range of 4~8 and 8~11,respectively.In the control experiment,the fluorescent intensity of single component 9-ACA did not show linear relationship with pH,proving that the broad-range pH responsiveness was derived from the triplet-triplet energy transfer(TTET)process between sensitizer and emitter.
作者
陈硕然
陈富铭
叶常青
韩鹏举
王筱梅
宋延林
CHEN Shuo-ran;CHEN Fu-ming;YE Chang-qing;HAN Peng-ju;WANG Xiao-mei;SONG Yan-lin(Research Center for Green Printing Nanophotonic Materials,Suzhou University of Science and Technology,Suzhou215009,Jiangsu,China;Jiangsu Key Laboratory for Environmental Functional Materials,Suzhou University ofScience and Technology,Suzhou215009,Jiangsu,China;Key Laboratory of Green Printing,Institute of Chemistry,Chinese Academy of Sciences,Beijing100190,China)
出处
《精细化工》
EI
CAS
CSCD
北大核心
2019年第9期1757-1762,共6页
Fine Chemicals
基金
国家自然科学基金（51603141,51873145,51673143）
江苏省自然科学基金（BK20160358,BK20170065）
江苏省高校自然科学基金（17KJA430016）
江苏省第五期“333高层次人才培养工程”（BRA2018340）
江苏省“六大人才高峰”（XCL-79）
江苏高校“青蓝工程”
关键词
上转换
三线态-三线态湮灭
三线态-三线态能量转移
9-蒽甲酸
PH响应
功能材料
upconversion
triplet-triplet annihilation
triplet-triplet energy transfer
anthracene-9-carboxylic acid
pH responsiveness
functional materials
