摘要
Luminescent metal-organic frameworks(LMOFs)have become a promising class of fluorescence sensing materials,however,the multi-responsive LMOF sensors for organic compounds are rather rare.Herein,a water stable and highly efficient luminescent MOF with the formula of{[Zn(BBZB)(2,6-NDC)]-solvents}n(JXUST-10,BBZB=4,7-bis(1H-benzimidazole-1-yl)-2,1,3-benzothiadiazole and 2,6-NDC=2,6-naphthalenedicarboxylate)was constructed by the incorporation of Zn2+and two organic ligands(BBZB and 2,6-NDC)featuring the conjugate system.JXUST-10 is a three-dimensional two-fold interpenetrated framework with good fluorescent proper-ty.Based on the luminescent characteristic,JXUST-10 can be used as a multi-responsive sensor for detection of three different ana-lytes including tetracycline,benzaldehyde and uric acid via different luminescent change behaviours.Remarkably,fluorescence test paper and LED light devices are used to detect analytes through the visual change of luminescence colour of JXUST-10 from blue greenish to yellow greenish under ultraviolet light(365 nm)irradiation.Furthermore,the probable sensing mechanisms for three target analytes were also discussed.
基金
This work was supported by the National Natural Science Foundation of China(Nos.22061019,21761012,and 21861018)
the Natural Science Foundation of Jiangxi Province(No.20202ACBL213001)
Jiangxi Provincial Key Laboratory of Functional Molecular Materials Chemistry(No.20212BCD42018)
the Natural Science Foundation of Tianjin(No.20JCQNJCO1680)
the Youth Jinggang Scholars Program in Jiangxi Province(No.QNJG2019053)
the Two Thousand Talents Program in Jiangxi Province(No.jxsq2019201068).
