Blue-shifted and naked-eye recognition of H_(2)PO_(4)- and acetylacetone based on a luminescent metal-organic framework with new topology and good stability  

作　　者：Shuli Yao Hui Xu Tengfei Zheng Yunwu Li Haiping Huang Jun Wang Jinglin Chen Suijun Liu Herui Wen 

机构地区：[1]School of Chemistry and Chemical Engineering,Jiangxi Provincial Key Laboratory of Functional Molecular Materials Chemistry,Jiangxi University of Science and Technology,Ganzhou 341000,China [2]Fujian Key Laboratory of Functional Marine Sensing Materials,Minjiang University,Fuzhou 350108,China [3]Shandong Provincial Key Laboratory of Chemical Energy Storage and Novel Cell Technology,School of Chemistry and Chemical Engineering,Liaocheng University,Liaocheng 252000,China

出　　处：《Chinese Chemical Letters》2023年第4期584-589,共6页中国化学快报（英文版）

基　　金：supported by the National Natural Science Foundation of China (Nos. 22061019, 21861018, 22161019 and 12174172);the NSF of Jiangxi Province (No. 20202ACBL213001);Jiangxi Provincial Key Laboratory of Functional Molecular Materials Chemistry(No. 20212BCD42018);Fujian Key Laboratory of Functional Marine Sensing Materials,Minjiang University (No. MJUKF-FMSM202010);the Youth Jinggang Scholars Program in Jiangxi Province (No.QNJG2019053);the Two Thousand Program in Jiangxi Province (No.jxsq2019201068);the Special Foundation for Postgraduate Innovation in Jiangxi Province (No. YC_(2)020-B155)。

摘　　要：Fluorescence detecting both organic and inorganic analytes has aroused tremendous scientific interests, because fluorescence techniques have high sensitivity and are easy to operate. A new threedimensional(3D) MOF {[(CH_(3))_(2)NH_(2)][Zn_(3)(bbip)(BTDI)1.5(OH)]·DMF·MeOH·3H_(2)O}n(JXUST-13, bbip = 2,6-bis(benzimidazol-1-yl)pyridine and H_(4)BTDI = 5,5-(benzo[c][1,2,5]thiadiazole-4,7-diyl)diisophthalic acid)with new 4,4,8-connceted topology has been successfully synthesized and structurally characterized. Importantly, JXUST-13 could recognize H_(2)PO_(4)-and acetylacetone(Acac) by obvious fluorescence blue shift and slight enhancement with the detection limits of 2.70 μmol/L and 0.21 mmol/L, respectively. In addition, JXUST-13 exhibits relatively good thermal stability, chemical stabilities as well as reusability, and the analytes could be distinguished by naked eye and fluorescence test paper. Remarkably, JXUST-13 is the first dual-responsive MOF sensor based on fluorescence blue shift for the detection of H_(2)PO_(4)-and Acac with good selectivity in a handy, economic, and environmentally friendly manner.

关 键 词：Metal-organic framework Fluorescence sensing Naked-eye recognition Fluorescence blue shift H_(2)PO_(4) −and acetylacetone 

分 类 号：O641.4[理学—物理化学] O657.3[理学—化学]