Fluorescent metal-organic framework porous material and preparation method
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A metal-organic framework and porous material technology, which is applied in the field of fluorescent metal-organic framework porous materials and its preparation, achieves the effects of high yield, simple reaction conditions, and easy operation
Inactive Publication Date: 2017-04-26
LIAONING UNIVERSITY OF PETROLEUM AND CHEMICAL TECHNOLOGY
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Because the modulation does not involve the breaking of chemical bonds, but only changes in the molecular interactions, this modulation method is more promising and more challenging.
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Embodiment 1
[0027] Dissolve sodium 1,2-dihydroxybenzene-3,5-disulfonate (1 mmol) in 10 mL of water, and dissolve strontium nitrate (1 mmol) in 10 mL of water to form a uniform solution. Mix the two solutions, stir them evenly, place them in a polytetrafluoroethylene-lined reaction kettle, heat them up to 130°C for 4 days, then lower the temperature to room temperature, filter, and wash the solids once with deionized water and ethanol, respectively. Dry to give a solid.
Embodiment 2
[0029] Weigh 1,2-dihydroxybenzene-3,5-disulfonate sodium (2mmol) and dissolve it in 20mL water, and dissolve strontium nitrate (2mmol) in 20mL water to form a uniform solution. Mix the two solutions, stir them evenly, place them in a polytetrafluoroethylene-lined reactor, heat up to 140°C for 5 days, then cool down to room temperature, filter, and wash the solid once with deionized water and ethanol, respectively. Dry to give a solid.
Embodiment 3
[0031] Weigh 1,2-dihydroxybenzene-3,5-disulfonate sodium (3mmol) and dissolve it in 30mL water, and dissolve strontium nitrate (3mmol) in 30mL water to form a uniform solution. Mix the two solutions, stir them evenly, place them in a polytetrafluoroethylene-lined reaction kettle, heat up to 130°C for 3 days, then lower the temperature to room temperature, filter, and wash the solid once with deionized water and ethanol, respectively. Dry to give a solid.
[0032] The results of this example show that the morphology of the material is as follows: figure 1 , SEM photo
[0033] The molecular structure of embodiment 2 material compound is as figure 2 , single crystal diffraction molecular structure
[0034] The obtained porous material of embodiment 2, experimental result shows, and aperture is 1.03 * 1.03nm
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Abstract
The invention discloses a fluorescent metal-organic framework porous material and a preparation method therefor and belongs to the technical field of fluorescent porous materials. The fluorescent metal-organic framework porous material disclosed by the invention is synthesized from sodium 1,2-dihydroxy benzene-3,5-disulfonate and strontium nitrate. Through coordinate bonds and a skeleton structure between 1,2-dihydroxy benzene-3,5-disulfonic acid anions and [Na(H2O)2O]2<2> and strontium ions, the fluorescent emission wavelength of the material is increased, and the luminescent variety of the fluorescent material is extended. The invention further provides a synthesis method for the porous material. According to the method, the operation is simple and convenient, the reaction conditions are simple, no pollution is caused, the yield is high, and the purity is high.
Description
technical field [0001] The invention relates to the technical field of fluorescent porous materials, in particular to a novel fluorescent metal organic framework porous material and a preparation method. Background technique [0002] Organometallic framework materials represent a class of artificially synthesized organic-inorganic hybrid porous crystal materials, which are self-assembled into a network structure with a certain topology configuration by coordinating metal nodes and organic bridge bonds. As an emerging class of porous crystal materials, due to the wide variety of metal nodes and organic bridges, crystal engineering theory can be used for directional design to achieve dimensionality and spatial configuration control; due to its inorganic-organic hybrid characteristics, it can Using host-guest chemistry for directional design of its surface and interface, realize the chemical regulation of surface and interface. Based on these advantages, organometallic framewo...
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