A novel fluorescent Cd-MOF probe [Cd_(2)(btec)(TPB)_(0.5)(H_(2)O)_(4)]·2H_(2)O (complex 1,TPB = 1,2,4,5-Tetra(4-pyridyl)benzene) has been rationally designed and synthesized,and its multipurpose sensing applicati...A novel fluorescent Cd-MOF probe [Cd_(2)(btec)(TPB)_(0.5)(H_(2)O)_(4)]·2H_(2)O (complex 1,TPB = 1,2,4,5-Tetra(4-pyridyl)benzene) has been rationally designed and synthesized,and its multipurpose sensing applications have been revealed.The thermo-sensitive property of complex 1 was investigated in a wide temperature range from 20 ℃ to 160 ℃.A good linear relationship was observed between the fluorescence quenching efficiency of complex 1 and the circumstance temperature,which suggested that complex 1 could be a promising material for application in fluorescent thermometers.Stable suspensions could be obtained after dispersion of complex 1 in various solvents,especially in water.A remarkable red shift (about 20 nm) in the fluorescence emission spectrum of complex 1 was observed when H_(2)O was used as the dispersion medium compared with that in D2O,which could be used for distinguishing D2O from H_(2)O.Furthermore,based on the strong inner filtering effect (IFE),the fluorescence detection of acetone in water was carried out using complex 1-H_(2)O suspensions.Real-time fluorescence quenching was observed after the addition of acetone into complex 1-H_(2)O suspensions.Moreover,the fluorescence quenching efficiency vs.the concentration of acetone fitted well with a non-linear equation (R2 = 0.9929) with an experimental detection limit for acetone as 0.06% (vol%).In addition,the photoelectric responses study revealed that complex 1 might be modified and used as a photoelectric sensor.展开更多
基金supported by the National Natural Science Foundation of China(22007055,21775089,22074080)Natural Science Foundation of Shandong Province of China(ZR2020QB156)+2 种基金Changjiang Scholar Program of the Ministry of Education of China(Q2019258)Taishan Scholar Program of Shandong Province(tsqn201909106)the Startup Foundation for Doctors of Qufu Normal University.
文摘A novel fluorescent Cd-MOF probe [Cd_(2)(btec)(TPB)_(0.5)(H_(2)O)_(4)]·2H_(2)O (complex 1,TPB = 1,2,4,5-Tetra(4-pyridyl)benzene) has been rationally designed and synthesized,and its multipurpose sensing applications have been revealed.The thermo-sensitive property of complex 1 was investigated in a wide temperature range from 20 ℃ to 160 ℃.A good linear relationship was observed between the fluorescence quenching efficiency of complex 1 and the circumstance temperature,which suggested that complex 1 could be a promising material for application in fluorescent thermometers.Stable suspensions could be obtained after dispersion of complex 1 in various solvents,especially in water.A remarkable red shift (about 20 nm) in the fluorescence emission spectrum of complex 1 was observed when H_(2)O was used as the dispersion medium compared with that in D2O,which could be used for distinguishing D2O from H_(2)O.Furthermore,based on the strong inner filtering effect (IFE),the fluorescence detection of acetone in water was carried out using complex 1-H_(2)O suspensions.Real-time fluorescence quenching was observed after the addition of acetone into complex 1-H_(2)O suspensions.Moreover,the fluorescence quenching efficiency vs.the concentration of acetone fitted well with a non-linear equation (R2 = 0.9929) with an experimental detection limit for acetone as 0.06% (vol%).In addition,the photoelectric responses study revealed that complex 1 might be modified and used as a photoelectric sensor.
