摘要
为提高对硝基芳烃易爆物的检测效率,选用具有聚集诱导发光效应的四齿有机配体四[4-(4′-羧基苯基)苯基]乙烯与二价锌离子(Zn^(2+))进行配位形成片层,再采用水热法,将具有吡啶基官能团的二齿有机配体5,15-二(4-吡啶基)-10,20-二苯基卟啉与Zn(Ⅱ)配位轴向桥联片层,构筑成一种新型的双配体荧光配合物Zn-TP;并进一步以Zn-TP材料为荧光探针应用于硝基芳烃易爆物的选择性传感中。结果表明:Zn-TP材料具有良好的热稳定性,且苦味酸能使Zn-TP材料发生瞬时荧光淬灭;Zn-TP材料检测苦味酸的体系中加入其他硝基芳烃易爆物也不会影响该淬灭结果,Zn-TP材料对苦味酸具有优异的选择性传感能力。
In order to improve the detection efficiency of nitroaromatics compounds(NACs),the 4′,4″,4′″,4″″-(ethene-1,1,2,2-tetrayl)tetrabiphenyl-4-carboxylic acid(H4ETTC),four-dentate organic ligand with aggregation-induced emission(AIE)effect,was used to coordinate with divalent zinc ions(Zn^(2+))to form lamella,which were further pillared by 5,15-di(4-pyridyl)-10,20-diphenylporphyrin(H2Pp),bidentate organic ligand with pyridyl functional groups,to synthesize a novel fluorescent complex Zn-TP with double ligands.Furthermore,the Zn-TP material was adopted as a fluorescent probe to detect NACs selectively.The results indicated that Zn-TP material exhibited good thermal stability,and had instantaneous fluorescence quenching when exposed to picric acid.The addition of other NACs to the detection system wouldn’t affect this result,indicating that Zn-TP had excellent selective sensing ability for TNP.
作者
李况
王秉
彭志勤
万军民
LI Kuang;WANG Bing;PENG Zhiqin;WAN Junmin(School of Materials Science&Engineering,Zhejiang Sci-Tech University,Hangzhou 310018,China)
出处
《浙江理工大学学报（自然科学版）》
2021年第4期520-526,共7页
Journal of Zhejiang Sci-Tech University(Natural Sciences)
基金
浙江省自然科学基金项目(LY13B030009)。
关键词
荧光传感
硝基芳烃易爆物
聚集诱导发光
配合物
卟啉
fluorescent sensing
explosive nitroaromatic compounds
aggregation-induced emission
coordination complex
porphyrin
