本文研究了两种三重互穿Zn(II)基MOFs。命名为[Zn6(1,4-bpeb)4(IPA)6(H2O)]n(MOF-1)和{[Zn3(1,4-bpeb)1.5(DDBA)3]n·2DMF}(MOF-2),{1,4-bpeb=1,4-双[2-(4-吡啶基)乙烯基]benze,IPA=间苯二甲酸,DDBA=3,3'-偶氮苯甲酸},它们是通过水热法合成的,并进行了表征和稳定性测试。结果表明,MOF-1具有良好的酸碱稳定性和溶剂稳定性。此外,MOF-1具有优异的绿色荧光,在不同的溶剂中具有不同的现象,在丙酮中几乎完全猝灭。基于这种现象,进行了丙酮传感测试,其中丙酮的检出限计算为0.00365%(体积比)。令人兴奋的是,MOF-1还可以作为比例荧光探针特异性检测色氨酸,计算的检出限为34.84μM。此外,通过能量转移和竞争吸收(荧光共振能量转移(FRET))和内部过滤效应(IFE)解释了机理。为了抗菌的目的,MOF-1对大肠杆菌和金黄色葡萄球菌的最低抑菌浓度分别为19.52µg/mL和39.06µg/mL,分别,MOF-2对大肠杆菌和金黄色葡萄球菌的最低抑菌浓度分别为68.36µg/mL和136.72µg/mL,分别。
Two triple interpenetrating Zn(II)-based MOFs were studied in this paper. Named [Zn6(1,4-bpeb)4(IPA)6(H2O)]n (MOF-1) and {[Zn3(1,4-bpeb)1.5(DDBA)3]n·2DMF} (MOF-2), {1,4-bpeb = 1,4-bis [2-(4-pyridy1) ethenyl]benze, IPA = Isophthalic acid, DDBA = 3,3\'-Azodibenzoic acid}, they were synthesized by the hydrothermal method and were characterized and stability tested. The results showed that MOF-1 had good acid-base stability and solvent stability. Furthermore, MOF-1 had excellent green fluorescence and with different phenomena in different solvents, which was almost completely quenched in acetone. Based on this phenomenon, an acetone sensing test was carried out, where the detection limit of acetone was calculated to be 0.00365% (volume ratio). Excitingly, the MOF-1 could also be used as a proportional fluorescent probe to specifically detect tryptophan, with a calculated detection limit of 34.84 μM. Furthermore, the mechanism was explained through energy transfer and competitive absorption (fluorescence resonance energy transfer (FRET)) and internal filtration effect (IFE). For antibacterial purposes, the minimum inhibitory concentrations of MOF-1 against Escherichia coli and Staphylococcus aureus were 19.52 µg/mL and 39.06 µg/mL, respectively, and the minimum inhibitory concentrations of MOF-2 against Escherichia coli and Staphylococcus aureus were 68.36 µg/mL and 136.72 µg/mL, respectively.