The fast,sensitive and selective detection of some antibiotics and heavy metal cations in water is highly desirable for environmental protection and human health,but it is still currently challenging.In this work,a ne...The fast,sensitive and selective detection of some antibiotics and heavy metal cations in water is highly desirable for environmental protection and human health,but it is still currently challenging.In this work,a new luminescent Eu(Ⅲ)-based metalorganic framework(MOF),{[(CH_(3))_(2)NH_(2)][Eu(L)2(H_(2)O)_(2)]·xDMF}n(1)[H_(2)L=4,4’-((naphthalene-1,4-dicarbonyl)bis(azanediyl))dibenzoic acid],was solvothermally synthesized.Complex 1 exhibits good water stability and luminescent property and could serve as a bifunctional ratiometric luminescent sensor for fast,sensitive and selective detection of ornidazole(ODZ)and Hg^(2+)in aqueous solution.The corresponding luminescent mechanism has also been discussed.This work indicates that 1 as a promising luminescent material exhibits luminescent quenching behavior for ODZ and luminescent enhancement behavior for Hg^(2+)in H_(2)O,which will promote the practical application of Ln-MOF-based ratiometric luminescent sensors in monitoring antibiotics and metal ions pollutants in the environmental water matrices.展开更多
Constructed from 2,5-bis(4-pyridyl) thiazolo[5,4-d]thiazole(Py_(2) TTz),sulfate anions and metal ions Cd(Ⅱ),a new 3D luminescent metal-organic framework(LMOF) with good water stability is synthesized under solvotherm...Constructed from 2,5-bis(4-pyridyl) thiazolo[5,4-d]thiazole(Py_(2) TTz),sulfate anions and metal ions Cd(Ⅱ),a new 3D luminescent metal-organic framework(LMOF) with good water stability is synthesized under solvothermal condition.[Cd(Py_(2) TTz)(SO_(4))]_a(Py_(2) TTz=2,5-bis(4-pyridyl) thiazolo[5,4-d]thiazole).It crystallizes in tetragonal space group P42_1 m_with a=6.830(3),b=6.830(3),c=17.676(12) A,V=824.5(8) A^(3),Z=4,M_(r)=504.83,D_(c)=2.033 g·cm^(-3),F(000)=496,GOOF=1.088,the final R=0.0434 and wR=0.0948 for 6301 reflections with I>2σ(Ⅰ).Upon excitation at 370 nm,the emission peak of the compound appears at 455 nm,which has a slight redshift compared to the free ligand Py_(2) TTz.The compound has potential to be a luminescence sensing material.展开更多
基金financially supported by the National Natural Science Foundation of China(No.21771096)。
文摘The fast,sensitive and selective detection of some antibiotics and heavy metal cations in water is highly desirable for environmental protection and human health,but it is still currently challenging.In this work,a new luminescent Eu(Ⅲ)-based metalorganic framework(MOF),{[(CH_(3))_(2)NH_(2)][Eu(L)2(H_(2)O)_(2)]·xDMF}n(1)[H_(2)L=4,4’-((naphthalene-1,4-dicarbonyl)bis(azanediyl))dibenzoic acid],was solvothermally synthesized.Complex 1 exhibits good water stability and luminescent property and could serve as a bifunctional ratiometric luminescent sensor for fast,sensitive and selective detection of ornidazole(ODZ)and Hg^(2+)in aqueous solution.The corresponding luminescent mechanism has also been discussed.This work indicates that 1 as a promising luminescent material exhibits luminescent quenching behavior for ODZ and luminescent enhancement behavior for Hg^(2+)in H_(2)O,which will promote the practical application of Ln-MOF-based ratiometric luminescent sensors in monitoring antibiotics and metal ions pollutants in the environmental water matrices.
基金supported by the Strategic Priority Research Program of Chinese Academy of Sciences(No.XDB20000000)the Hundred-talent Program of Fujian Province and Chinese Academic of Sciences Fujian Institute of Research on the Structure of Matter。
文摘Constructed from 2,5-bis(4-pyridyl) thiazolo[5,4-d]thiazole(Py_(2) TTz),sulfate anions and metal ions Cd(Ⅱ),a new 3D luminescent metal-organic framework(LMOF) with good water stability is synthesized under solvothermal condition.[Cd(Py_(2) TTz)(SO_(4))]_a(Py_(2) TTz=2,5-bis(4-pyridyl) thiazolo[5,4-d]thiazole).It crystallizes in tetragonal space group P42_1 m_with a=6.830(3),b=6.830(3),c=17.676(12) A,V=824.5(8) A^(3),Z=4,M_(r)=504.83,D_(c)=2.033 g·cm^(-3),F(000)=496,GOOF=1.088,the final R=0.0434 and wR=0.0948 for 6301 reflections with I>2σ(Ⅰ).Upon excitation at 370 nm,the emission peak of the compound appears at 455 nm,which has a slight redshift compared to the free ligand Py_(2) TTz.The compound has potential to be a luminescence sensing material.
