Zn metal-organic framework as well as preparation method and application thereof
An organic framework and metal technology, applied in the direction of fluorescence/phosphorescence, material excitation analysis, etc., can solve the problems of expensive and complex instruments, and achieve the effect of novel structure, large specific surface area and strong fluorescence
Active Publication Date: 2019-06-14
BEIJING UNIV OF TECH
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Problems solved by technology
At present, the detection methods of strong explosives mainly include dogs and sophisticated instruments, but most of these instruments are expensive, complicated and likely to have problems in the field of application
Method used
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Embodiment 1
[0028] The organic ligand H 4 TBHB (0.005 mmol) and zinc nitrate hexahydrate (0.035 mmol) were mixed uniformly in 1 mL of N,N-dimethylformamide, 10 μL of tetrafluoroboric acid was added, and sealed into a vial. Crystals of the metal-organic framework were obtained via thermal reaction at 80° C. for 48 hours.
Embodiment 2
[0030] The organic ligand H 4 TBHB (0.005 mmol) and zinc nitrate hexahydrate (0.035 mmol) were mixed uniformly in 1.5 mL of N,N-dimethylformamide, 10 μL of tetrafluoroboric acid was added, and sealed into a vial. Crystals of the metal-organic framework were obtained via thermal reaction at 90° C. for 24 hours.
Embodiment 3
[0032] The organic ligand H 4 TBHB (0.005 mmol) and zinc nitrate hexahydrate (0.035 mmol) were mixed uniformly in 2 mL of N,N-dimethylformamide, 10 μL of tetrafluoroboric acid was added, and sealed into a vial. Crystals of the metal-organic framework were obtained via thermal reaction at 90° C. for 24 hours.
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Abstract
The invention relates to a Zn metal-organic framework as well as a preparation method and application thereof, and belongs to the technical field of crystalline-state materials. A chemical molecular formula is Zn(TBHB)1 / 2; and the H4TBHB is an organic ligand 3,3',5,5'-quadruple benzoic acid-2,2',4,4',6,6'-hexamethyl-1,1'-biphenyl. Under a sealed condition, the organic ligand 3,3',5,5'-quadruple benzoic acid-2,2',4,4',6,6'-hexamethyl-1,1'-biphenyl and zinc nitrate hexahydrate are subjected to a solvothermal reaction in N,N-dimethylformamide to obtain a metal-organic framework crystal; and the metal-organic framework has relatively large specific surface area and relatively strong fluorescence performance and can be used as a detection material of a nitro explosive.
Description
technical field [0001] The invention belongs to the technical field of crystalline materials, and the technology relates to metal-organic coordination polymer materials, especially a preparation method and application of a zinc (Zn) metal-organic framework. Background technique [0002] Rapid and selective detection of explosives is one of the urgent problems related to homeland security, military applications, accident investigation and minefield analysis. Nitroaromatic compounds such as 2,4,6-trinitrotoluene (2,4,6-trinitrotoluene, TNT), 2,4-dinitrotoluene (2,4-dinitrotoluene, 2,4-DNT), 2 , 4,6-trinitrophenol (2,4,6-trinitrophenol, TNP) is the main material of industrial explosives, and related substances have been detected in groundwater, oil reservoirs, and arsenals and other surrounding environments. At present, the detection methods of strong explosives mainly include dogs and sophisticated instruments, but most of these instruments are expensive, complicated and like...
Claims
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Login to View More IPC IPC(8): C08G83/00G01N21/64
Inventor 白金泉张亚欢陈亚李建荣谢亚勃
Owner BEIJING UNIV OF TECH