CN107384373B - One kind having selectivity detection Fe3+Luminescent crystal material of ion and preparation method thereof - Google Patents
One kind having selectivity detection Fe3+Luminescent crystal material of ion and preparation method thereof Download PDFInfo
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- CN107384373B CN107384373B CN201710543173.1A CN201710543173A CN107384373B CN 107384373 B CN107384373 B CN 107384373B CN 201710543173 A CN201710543173 A CN 201710543173A CN 107384373 B CN107384373 B CN 107384373B
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Abstract
The invention discloses one kind to have selectivity detection Fe3+Luminescent crystal material of ion and preparation method thereof, the chemical formula of the luminescent crystal material are [Zn (OBA) (3-abit)]n, belong to anorthic system, space group P-1, cell parameter is α=73.382 (2) °, β=76.088 (2) °, γ=80.229 (2) °, Z=2.Its preparation process is the following steps are included: by zinc nitrate and 4, 4 '-oxydibenzoic acids are added in aqueous solution stirring, by 4- amino -3, 5- bis- (imidazolmethyl) -1, 2, 4- triazole, which is added in methanol solution, to be stirred, by zinc nitrate obtained above and 4, the aqueous solution of 4 '-oxydibenzoic acids is placed in reaction tube and buffer solvent is added, again by 4- amino -3, 5- bis- (imidazolmethyl) -1, 2, the methanol solution of 4- triazole is slowly added into reaction tube, through crystallizing after sealing, filtering, washing, drying to obtain luminescent crystal material [Zn (OBA) (3-abit)]n.Luminescent crystal material prepared by the present invention is to Fe3+The selective Effect on Detecting of ion, and the chemistry of luminescent crystal material, optical stability are good.
Description
Technical field
The present invention relates to the preparations of metal cation detection material, and in particular to one kind has selectivity detection Fe3+Ion
Luminescent crystal material and preparation method thereof.
Background technique
With the fast development of global industry, iron and its alloy have become in the world using most a kind of metal materials
Material, since it is with numerous good performances, makes it be widely used in the national economy such as machinework, catalyst, metallurgical product
Every field, provide strong advantageous support for economic development.Meanwhile ferro element is also the essential element for constituting human body
One of, it is not only the pith of hemoglobin or the ingredient of many enzymes and immune system compound, and can participate in
The transport and storage of oxygen, play an important role human health.However, the fast development of industry results in a large amount of Fe3+From
Son is discharged into environment water, is caused and is seriously threatened to environment etc.；Simultaneously in human body, iron deficiency and Fe supply can be to them
Cause very big injury, such as anaemia, heart and liver diseases, diabetes.Therefore effective detection Fe3+Ion pair environment and
Human health is extremely important.In reported various Detection Techniques, the chemistry based on fluorescence coordination polymer
Sensing is since it has the characteristics that high sensitivity and highly selective, cheap and easy to get, easy flexible has become current numerous scientific research people
The emphasis of member's research.Such as document Dalton Trans., 2013,42,12403-12409 and Inorg.Chem.2016,55,
3952-3959 is reported with Fe3+The luminous complex of ion detection performance.
Summary of the invention
In order to solve the above technical problems, the present invention, which provides one kind, has selectivity detection Fe3+The luminescent crystal material of ion
And preparation method thereof；Used technical solution are as follows:
It is described that there is selectivity detection Fe3+The luminescent crystal material of ion, chemical formula are [Zn (OBA) (3-abit)]n,
Belong to anorthic system, space group P-1, cell parameter isα=
73.382 (2) °, β=76.088 (2) °, γ=80.229 (2) °, Z=2.The crystalline material structure as shown in Figure 1, be by
The one-dimensional trapezoidal skeleton structure of one kind made of the Zn of four connections and two kinds of bridge ligands OBA, 3-abit are constructed.
Further, the luminescent crystal material preparation method the following steps are included:
(1) by zinc nitrate and 4,4 '-oxydibenzoic acids (OBA) are added in aqueous solution, and are stirred 3-6 minutes, and be added
Alkaline solution adjusts pH to 6-8；
(2) two (imidazolmethyl) -1,2,4- triazole (3-abit) of 4- amino -3,5- is added in methanol solution and is stirred
It mixes 5-7 minutes；
(3) solution obtained in step (1) is placed in reaction tube, and buffer solvent is added, be slowly added in step (2)
Obtained solution is crystallized after sealing, is filtered, washed, drying to obtain luminescent crystal material [Zn (OBA) (3-abit)]n。
Further, provided by the invention that there is selectivity detection Fe3+In the preparation method of the luminescent crystal material of ion,
Start material zinc nitrate, 4,4 '-oxydibenzoic acids, 4- amino -3,5- bis- (imidazolmethyl) -1, mole of 2,4- triazoles
Than for 1:0.5~1:0.5~1.
Further, provided by the invention that there is selectivity detection Fe3+The preparation method of the luminescent crystal material of ion
In, the buffer solvent is CH3OH and H2The mixed solution of O, wherein CH3OH and H2The volume ratio of O is 1:0.5~1.
The luminescent crystal material provided through the invention is not only to Fe3+The selective Effect on Detecting of ion generates
Fluorescence intensity apparent quenching effects occur, and effect is not quenched to the fluorescence intensity of other metal cations significantly then
Fruit, and the chemistry of luminescent crystal material, optical stability are good；It is not only reacted in the preparation process of luminescent crystal material simultaneously
Beginning object is cheap and easy to get, and cost is relatively low, and preparation condition is mild, easily controllable.It is detected by X-ray diffraction pattern, the present invention
Prepared luminescent crystal material [Zn (OBA) (3-abit)]nPowder x-ray diffraction pattern and theoretical calculation X-ray
Diffraction pattern is almost the same, illustrates crystalline material prepared by the present invention [Zn (OBA) (3-abit)]nWith very high purity.
Detailed description of the invention
Fig. 1 is luminescent crystal material [Zn (OBA) (3-abit)] of the inventionnOne-dimentional structure figure；
Fig. 2 is luminescent crystal material [Zn (OBA) (3-abit)] of the inventionnOne-dimentional structure figure partial enlarged view；
The luminescent crystal material [Zn (OBA) (3-abit)] that Fig. 3 is 1 milligramnVolume is 3 milliliters, solubility is 0.01 to rub
You/liter metal cation aqueous solution in fluorescence spectra (excitation wavelength 350nm)；
Fig. 4 is the corresponding fluorescence column diagram of Fig. 3 fluorescence spectra；
Fig. 5 is luminescent crystal material [Zn (OBA) (3-abit)] of the inventionnPowder X-ray diffractogram.
Specific embodiment
Preparation method of the present invention is described further below in conjunction with attached drawing and specific embodiment.
Embodiment 1:
1, the preparation of luminescent crystal material: the following steps are included:
(1) the 4,4 '-oxydibenzoic acids (OBA) of the zinc nitrate of 0.1mmol and 0.1mmol are added to the water-soluble of 5mL
It is stirred 4 minutes in liquid, and sodium hydroxide solution is added and adjusts pH to 6；(2) by two (the imidazoles first of 4- amino -3,5- of 0.1mmol
Base) -1,2,4- triazoles (3-abit) are added in the methanol solution of 5mL, are stirred 6 minutes；It (3) will be obtained in step (1)
Solution is placed in the CH that 3mL in reaction tube and is added3OH and H2O buffer solvent, the wherein CH of buffer solvent3OH and H2The volume ratio of O
For 1:1, then solution obtained in step (2) is added in reaction tube, crystallized, is filtered, washed after sealing, drying to obtain hair
Luminescent crystal material [Zn (OBA) (3-abit)] n；
2、Fe3+The test of ion selectivity detection performance: it is 3 that the luminescent crystal material (1 milligram) of preparation, which is added to volume,
In milliliter, the metal cation aqueous solution that solubility is 0.01 mol/L, then ultrasonic two hours obtained stable suspensions exist
The fluorescence spectrum of different cationic aqueous solutions is measured under 350nm exciting light.
As shown in Figure 3 and Figure 4, luminescent crystal material provided by the invention to the fluorescence spectrum of different metal cation respectively not
It is identical, wherein to Fe3+Ion is far below other metal cations, selective Effect on Detecting, the fluorescence intensity generated
Apparent quenching effects occur, and to the fluorescence intensity of other metal cations then without apparent quenching effects.
3, X-ray diffraction is analyzed: being put into X-ray diffractometer and is carried out to the powder of the luminescent crystal material (5mg) of preparation
Diffraction pattern analysis.
As shown in figure 5, being detected by X-ray diffraction pattern, luminescent crystal material [Zn (OBA) prepared by the present invention
(3-abit)]nX-ray diffraction pattern and theoretical calculation X-ray diffraction pattern it is almost the same, illustrate prepared by the present invention
Crystalline material [Zn (OBA) (3-abit)]nWith very high purity.
Embodiment 2:
1, the preparation of luminescent crystal material: the following steps are included:
(1) the 4,4 '-oxydibenzoic acids (OBA) of the zinc nitrate of 0.1mmol and 0.05mmol are added to the water-soluble of 5mL
It is stirred 5 minutes in liquid, and sodium hydroxide solution is added and adjusts pH to 6；(2) by two (the imidazoles first of 4- amino -3,5- of 0.05mmol
Base) -1,2,4- triazoles (3-abit) are added in the methanol solution of 5mL, are stirred 5 minutes；It (3) will be obtained in step (1)
Solution is placed in the CH that 3mL in reaction tube and is added3OH and H2O buffer solvent, the wherein CH of buffer solvent3OH and H2The volume ratio of O
For 1:0.5, then solution obtained in step (2) is added in reaction tube, crystallized, is filtered, washed after sealing, drying to obtain
Luminescent crystal material [Zn (OBA) (3-abit)] n；
2、Fe3+The test of ion selectivity detection performance: it is 3 that the luminescent crystal material (1 milligram) of preparation, which is added to volume,
In milliliter, the metal cation aqueous solution that solubility is 0.01 mol/L, then ultrasonic two hours obtained stable suspensions exist
The fluorescence spectrum of different cationic aqueous solutions is measured under 350nm exciting light.
3, X-ray diffraction is analyzed: luminescent crystal material (5mg) powder of preparation being put into X-ray diffractometer and is spread out
Penetrate Interferogram Analysis.
Embodiment 3:
1, the preparation of luminescent crystal material: the following steps are included:
(1) the 4,4 '-oxydibenzoic acids (OBA) of the zinc nitrate of 0.1mmol and 0.05mmol are added to the water-soluble of 5mL
It is stirred 5 minutes in liquid, and sodium hydroxide solution is added and adjusts pH to 7；(2) by two (the imidazoles first of 4- amino -3,5- of 0.1mmol
Base) -1,2,4- triazoles (3-abit) are added in the methanol solution of 5mL, are stirred 5 minutes；It (3) will be obtained in step (1)
Solution is placed in the CH that 3mL in reaction tube and is added3OH and H2O buffer solvent, the wherein CH of buffer solvent3OH and H2The volume ratio of O
For 1:1, then solution obtained in step (2) is added in reaction tube, crystallized, is filtered, washed after sealing, drying to obtain hair
Luminescent crystal material [Zn (OBA) (3-abit)] n；
2、Fe3+The test of ion selectivity detection performance: it is 3 that the luminescent crystal material (1 milligram) of preparation, which is added to volume,
In milliliter, the metal cation aqueous solution that solubility is 0.01 mol/L, then ultrasonic two hours obtained stable suspensions exist
The fluorescence spectrum of different cationic aqueous solutions is measured under 350nm exciting light.
3, X-ray diffraction is analyzed: luminescent crystal material (5mg) powder of preparation being put into X-ray diffractometer and is spread out
Penetrate Interferogram Analysis.
Embodiment 4:
1, the preparation of luminescent crystal material: the following steps are included:
(1) the 4,4 '-oxydibenzoic acids (OBA) of the zinc nitrate of 0.1mmol and 0.05mmol are added to the water-soluble of 5mL
It is stirred 5 minutes in liquid, and sodium hydroxide solution is added and adjusts pH to 7；(2) by two (the imidazoles first of 4- amino -3,5- of 0.05mmol
Base) -1,2,4- triazoles (3-abit) are added in the methanol solution of 5mL, are stirred 5 minutes；It (3) will be obtained in step (1)
Solution is placed in the CH that 3mL in reaction tube and is added3OH and H2O buffer solvent, the wherein CH of buffer solvent3OH and H2The volume ratio of O
For 1:0.5, then solution obtained in step (2) is added in reaction tube, crystallized, is filtered, washed after sealing, drying to obtain
Luminescent crystal material [Zn (OBA) (3-abit)] n；
2、Fe3+The test of ion selectivity detection performance: it is 3 that the luminescent crystal material (1 milligram) of preparation, which is added to volume,
In milliliter, the metal cation aqueous solution that solubility is 0.01 mol/L, then ultrasonic two hours obtained stable suspensions exist
The fluorescence spectrum of different cationic aqueous solutions is measured under 350nm exciting light.
3, X-ray diffraction is analyzed: luminescent crystal material (5mg) powder of preparation being put into X-ray diffractometer and is spread out
Penetrate Interferogram Analysis.
Embodiment 5:
1, the preparation of luminescent crystal material: the following steps are included:
(1) the 4,4 '-oxydibenzoic acids (OBA) of the zinc nitrate of 0.1mmol and 0.1mmol are added to the water-soluble of 5mL
It is stirred 3 minutes in liquid, and sodium hydroxide solution is added and adjusts pH to 8；(2) by two (the imidazoles first of 4- amino -3,5- of 0.05mmol
Base) -1,2,4- triazoles (3-abit) are added in the methanol solution of 5mL, are stirred 7 minutes；It (3) will be obtained in step (1)
Solution is placed in the CH that 3mL in reaction tube and is added3OH and H2O buffer solvent, the wherein CH of buffer solvent3OH and H2The volume ratio of O
For 1:0.5, then solution obtained in step (2) is added in reaction tube, crystallized, is filtered, washed after sealing, drying to obtain
Luminescent crystal material [Zn (OBA) (3-abit)] n；
2、Fe3+The test of ion selectivity detection performance: it is 3 that the luminescent crystal material (1 milligram) of preparation, which is added to volume,
In milliliter, the metal cation aqueous solution that solubility is 0.01 mol/L, then ultrasonic two hours obtained stable suspensions exist
The fluorescence spectrum of different cationic aqueous solutions is measured under 350nm exciting light.
3, X-ray diffraction is analyzed: luminescent crystal material (5mg) powder of preparation being put into X-ray diffractometer and is spread out
Penetrate Interferogram Analysis.
Embodiment 6:
1, the preparation of luminescent crystal material: the following steps are included:
(1) the 4,4 '-oxydibenzoic acids (OBA) of the zinc nitrate of 0.1mmol and 0.05mmol are added to the water-soluble of 5mL
It is stirred 5 minutes in liquid, and sodium hydroxide solution is added and adjusts pH to 8；(2) by two (the imidazoles first of 4- amino -3,5- of 0.05mmol
Base) -1,2,4- triazoles (3-abit) are added in the methanol solution of 5mL, are stirred 5 minutes；It (3) will be obtained in step (1)
Solution is placed in the CH that 3mL in reaction tube and is added3OH and H2O buffer solvent, the wherein CH of buffer solvent3OH and H2The volume ratio of O
For 1:0.5, then solution obtained in step (2) is added in reaction tube, crystallized, is filtered, washed after sealing, drying to obtain
Luminescent crystal material [Zn (OBA) (3-abit)] n；
2、Fe3+The test of ion selectivity detection performance: it is 3 that the luminescent crystal material (1 milligram) of preparation, which is added to volume,
In milliliter, the metal cation aqueous solution that solubility is 0.01 mol/L, then ultrasonic two hours obtained stable suspensions exist
The fluorescence spectrum of different cationic aqueous solutions is measured under 350nm exciting light.
3, X-ray diffraction is analyzed: luminescent crystal material (5mg) powder of preparation being put into X-ray diffractometer and is spread out
Penetrate Interferogram Analysis.
Above embodiment is used for illustrative purposes only, and is not limitation of the present invention, related technical field
Those of ordinary skill without departing from the spirit and scope of the present invention can be with various changes can be made and modification, therefore institute
There is equivalent technical solution also to should belong to scope of the invention.
Claims (4)
1. one kind has selectivity detection Fe3+The luminescent crystal material of ion, it is characterised in that: the change of the luminescent crystal material
Formula is [Zn (OBA) (3-abit)]n, wherein OBA is 4,4 '-oxydibenzoic acids, and the luminescent crystal material is to be connected by four
The one-dimensional trapezoidal skeleton structure of one kind made of the Zn connect and two kinds of bridge ligands OBA and 3-abit are constructed, belongs to anorthic system, empty
Between group be P-1, cell parameter is α=73.382
(2) °, β=76.088 (2) °, γ=80.229 (2) °, Z=2.
2. a kind of described in claim 1 with selectivity detection Fe3+The preparation method of the luminescent crystal material of ion, including with
Lower step:
(1) by zinc nitrate and 4,4 '-oxydibenzoic acids are added in aqueous solution, and are stirred 3-6 minutes, and alkaline solution tune is added
Save pH to 6-8；
(2) 4- amino -3,5- two (imidazolmethyl) -1,2,4- triazole is added in methanol solution and is stirred 5-7 minutes；
(3) solution obtained in step (1) is placed in reaction tube, and buffer solvent is added, be slowly added to obtain in step (2)
Solution, crystallized, be filtered, washed after sealing, drying to obtain luminescent crystal material [Zn (OBA) (3-abit)]n。
3. according to claim 2 have selectivity detection Fe3+The preparation method of the luminescent crystal material of ion, feature
Be zinc nitrate, 4,4 '-oxydibenzoic acids, 4- amino -3,5- two (imidazolmethyl) -1,2,4- triazole molar ratio be 1:
0.5~1:0.5~1.
4. according to claim 2 there is selectivity detection to detect Fe3+The preparation method of the luminescent crystal material of ion,
It is characterized in that, the buffer solvent is the mixed solution of CH3OH and H2O, and wherein the volume ratio of CH3OH and H2O is 1:0.5~1.
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