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Fluorescent dual-response hollow mesoporous material and preparation method and application thereof

A mesoporous material, dual-response technology, applied in luminescent materials, material analysis by optical means, nanotechnology for materials and surface science, etc., can solve the problems of undiscovered anthrax virus, low density, specific surface area, implementation process Complex and other issues, to achieve a controllable and uniform shape

Active Publication Date: 2018-05-18
睿得新材料科技(佛山)有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the existing detection technologies such as infrared spectroscopy and Raman scattering spectroscopy are complicated to implement, and the equipment is expensive, and the results cannot be recognized by naked eyes.
[0003] Hollow mesoporous materials have broad application prospects in the fields of drug release, catalysis, sensing, and biometrics due to their superior properties such as low density, large specific surface area, and strong surface permeability; Structured rare-earth luminescent materials for identification of anthrax virus

Method used

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  • Fluorescent dual-response hollow mesoporous material and preparation method and application thereof
  • Fluorescent dual-response hollow mesoporous material and preparation method and application thereof
  • Fluorescent dual-response hollow mesoporous material and preparation method and application thereof

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Embodiment 1

[0046] The comparative example of the present invention provides a kind of GdVO 4 :Eu 3+ A preparation method comprising the steps of:

[0047] (1) Synthesis of Gd(OH)CO 3 :Eu 3+ Microspheres:

[0048] Gadolinium nitrate (Gd(NO 3 ) 3 ·6H 2 O, 0.451g, 1mmol) and urea (1.5g, 25mmol) were dissolved in 80mL deionized water, and after magnetic stirring at a speed of 500r / min for 1h, 0.05mmol europium nitrate (Eu(NO 3 ) 3 ·6H 2 O,), keep the reaction temperature in an oil bath at 90°C and a rotating speed of 800r / min for 3h, centrifuge and separate the precipitate at a rotating speed of 5000r / min, wash once with deionized water and repeat The above centrifugal separation operation steps, and then repeat the above centrifugal separation operation steps after washing with ethanol once, to obtain basic gadolinium carbonate (Gd(OH)CO) doped with europium 3 :Eu 3+ )Microspheres.

[0049] (2) Synthesis of GdVO 4 :Eu 3+ :

[0050] Ammonium vanamate (NH 4 VO 3 , 0.0351g, 0.3m...

Embodiment 2

[0053] The embodiment of the present invention provides a kind of preparation method of terbium-cephradine complex, comprises the following steps:

[0054] Weigh terbium chloride (TbCl 3 ·6H 2 (0,0.37g, 1mmol) and cephradine (1.05g, 3mmol) were dissolved in 20ml deionized water to obtain a mixed solution, and after magnetic stirring for 12h under the condition of rotating speed 200r / min, the precipitate was centrifuged under the condition of 10000r / min , washed once with deionized water, then repeated the centrifugation steps above, then washed once with ethanol, then repeated the centrifugation steps above, and finally, dried the separated precipitate in an oven at 60°C for 24 hours to obtain terbium- Cephradine complexes. The structural formula of the terbium-cephradine complex of gained is as follows:

[0055]

Embodiment 3

[0057] An embodiment of the present invention provides a method for preparing a fluorescent double-response hollow mesoporous material, including the following steps:

[0058] (1) Synthesis of Gd(OH)CO 3 :Eu 3+ Microspheres:

[0059] Gadolinium nitrate (Gd(NO 3 ) 3 ·6H 2 O, 0.451g, 1mmol) and urea (1.5g, 25mmol) were dissolved in 80mL deionized water, and after magnetic stirring at a speed of 500r / min for 1h, 0.05mmol europium nitrate (Eu(NO 3 ) 3 ·6H 2 O,), keep the reaction temperature in an oil bath at 90°C and a rotating speed of 800r / min for 3h, centrifuge and separate the precipitate at a rotating speed of 5000r / min, wash once with deionized water and repeat The above centrifugal separation operation steps, and then repeat the above centrifugal separation operation steps after washing with ethanol once, to obtain basic gadolinium carbonate (Gd(OH)CO) doped with europium 3 :Eu 3+ )Microspheres.

[0060] (2) Synthesis of GdVO 4 :Eu 3+ Mesoporous microspheres: ...

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Abstract

The invention discloses a fluorescent dual-response hollow mesoporous material and a preparation method and application thereof. The method comprises the steps that a rare earth vanadate microsphere is synthesized through a self-sacrificial template method, and then a cefradine complex of terbium is loaded in the rare earth vanadate microsphere, so that characteristic emission peaks of europium ions in the rare earth vanadate microsphere (GdVO4:Eu<3+>) and terbium ions in the cefradine complex of terbium coexist, and the luminous intensity of all the characteristic emission peaks does not influence each other, that is to say, the hollow mesoporous material has the fluorescent dual-response function. Accordingly, by detecting calcium pyridine-2,6-dicarboxylic acid (CaDPA) through the fluorescent dual-response hollow mesoporous material, anthrax is identified; compared with the methods such as infrared spectroscopy and Raman scattering spectroscopy, the method is simpler and more convenient; by means of the method, under the ultraviolet light, alteration of fluoresence can be observed with naked eyes, and the detection results can be judged.

Description

technical field [0001] The invention relates to the technical field of luminescent materials, in particular to a fluorescent double-response hollow mesoporous material and a preparation method and application thereof. Background technique [0002] In recent years, the design and synthesis of receptor molecules with selective recognition function for guest analytes has attracted widespread attention, which is based on the fact that the recognized objects have great significance to biological and environmental problems. Bacillus anthracis is highly lethal to the human body, so the detection of anthrax virus has been a hot spot for decades, and the design and development of efficient and practical detection techniques and probes for its rapid detection is crucial to the protection of humans and animals role. Studies have shown that calcium pyridine-2,6-dicarboxylate (CaDPA) accounts for up to 10% of the dry weight of anthrax virus, so we can detect this by detecting calcium py...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09K11/06C09K11/83C07D501/04C07D501/22G01N21/64B82Y30/00B82Y40/00
CPCB82Y30/00B82Y40/00C07D501/04C07D501/22C09K11/06C09K11/7794C09K2211/182G01N21/643
Inventor 王前明陆东郑玉惠苏荣
Owner 睿得新材料科技(佛山)有限公司
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