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Preparation method of graphite phase carbon nitride@MOF nano-crystals and application thereof

A technology of graphitic carbon nitride and nanocrystals, which is applied in the direction of nanotechnology, nanotechnology, nitrogen and non-metallic compounds, etc., can solve the problems that hinder the production and application of materials, increase the preparation cost, etc., and achieve long preparation cycle and low cost , Increase the effect of economic and social benefits

Inactive Publication Date: 2018-01-12
UNIV OF JINAN
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, to prepare these materials, CO 2 Supercritical drying also requires expensive instruments, thus increasing the preparation cost accordingly, which also hinders the large-scale production and application of this type of material
At present, some mesoporous metal-organic framework materials can also be prepared by the surfactant template method, but the template needs to be removed in multiple steps after preparation.

Method used

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  • Preparation method of graphite phase carbon nitride@MOF nano-crystals and application thereof
  • Preparation method of graphite phase carbon nitride@MOF nano-crystals and application thereof

Examples

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Effect test

Embodiment 1

[0035] Embodiment 1. Preparation of Ligand L

[0036] Under stirring conditions, mix 0.10 mol of 1,2-ethylenediamine and 0.20 mol of 3-pyridinecarboxylic acid, heat fractionation, and maintain the temperature at the top of the fractionation column at 103-105 °C. When the temperature at the top of the fractionation column drops, it indicates that the reaction has been completed , the mixture was cooled to 10-20°C, filtered with suction, washed three times with ethanol, and recrystallized with ethanol to obtain ligand L with a yield of 65%;

[0037] Ligand L, the structural formula is as follows:

[0038]

Embodiment 2

[0039] Example 2 A preparation method of graphitic carbon nitride @MOF nanocrystals

[0040] 0.058 g Co(NO 3 ) 2 ﹒ 6H 2 Dissolve O in 0.5 mL of water, add graphitic carbon nitride 0.01 g graphitic carbon nitride g-C 3 N 4 , making g-C 3 N 4 @Co(II) aqueous solution;

[0041] Dissolve 0.03 g of ligand L in 0.5 mL of N,N-dimethylacetamide DMA to prepare a DMA solution of ligand L;

[0042] 0.025 g terephthalic acid H 2 BDC, 0.020 g NaOH were dissolved in 0.5 mL water to prepare H 2 BDC alkaline aqueous solution;

[0043] will g-C 3 N 4 @Co(II) aqueous solution and H 2 After blending the BDC alkaline aqueous solution at room temperature, add the DMA solution of Ligand L and shake and mix well. After 20 seconds, a pink gel is obtained. The gel is aged at 85 °C for 24 h, and the volume ratio of 1:1 with ethanol and water After washing and centrifuging for 3 times, and vacuum drying at 70°C, the graphitic carbon nitride @MOF nanocrystals were prepared.

Embodiment 3

[0044] Example 3 A preparation method of graphitic carbon nitride @MOF nanocrystals

[0045] 0.058 g Co(NO 3 ) 2 ﹒ 6H 2 Dissolve O in 0.75 mL of water, add graphitic carbon nitride 0.015 g graphitic carbon nitride g-C 3 N 4 , making g-C 3 N 4 @Co(II) aqueous solution;

[0046] Dissolve 0.040 g of ligand L in 0.75 mL of N,N-dimethylacetamide DMA to prepare a DMA solution of ligand L;

[0047] 0.030 g terephthalic acid H 2 BDC, 0.025 g NaOH was dissolved in 0.75 mL water to prepare H 2 BDC alkaline aqueous solution;

[0048] will g-C 3 N 4 @Co(II) aqueous solution and H 2 After blending the BDC alkaline aqueous solution at room temperature, add the DMA solution of Ligand L and shake and mix well. After 70 seconds, a pink gel is obtained. The gel is aged at 85 ℃ for 24 h, and the ethanol and water with a volume ratio of 1:1 are used respectively. After washing and centrifuging for 3 times, and vacuum drying at 70°C, the graphitic carbon nitride @MOF nanocrystals wer...

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Abstract

The invention discloses a preparation method of graphite phase carbon nitride@MOF nano-crystals and application for detecting chiral drug enantiomers based on a composite material, belonging to the technical fields of nanometer materials, metal organic frameworks, analytical chemistry and chiral sensing detection. The preparation method comprises the following main steps: blending an aqueous solution of g-C3N4@Co(II) and an alkaline aqueous solution of H2BDC at a room temperature, adding a DMA solution of a ligand L so as to prepare gel, aging, separating, washing and drying the gel, thereby obtaining the product. A graphite phase carbon nitride@MOF nano-crystal sensor constructed by adopting a hybrid material is used for sensitive detection of the content of the chiral drug enantiomers.

Description

technical field [0001] The invention relates to a preparation method of graphite-phase carbon nitride @MOF nanocrystals and the application of the composite material electrochemical sensing to detect penicillamine enantiomers, belonging to the technical fields of nanomaterials, catalytic technology, and metal-organic framework materials . Background technique [0002] There are significant differences in the pharmacological activity, distribution, metabolic process, and toxicity of chiral drug enantiomers in the human body. The significant differences are mainly manifested in: ① one of the two enantiomers has pharmacological activity, The other pharmacological activity was not significant. For example, the anti-inflammatory and analgesic effects of S-ketorolac are 60 times and 230 times that of R-ketorolac, respectively; the anti-inflammatory effect of S-naproxen is 35 times that of R-naproxen. ② The pharmacological effects of the two conformations of chiral drugs are comp...

Claims

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Application Information

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IPC IPC(8): G01N27/48G01N27/30B82Y15/00B82Y30/00B82Y40/00C01B21/082
Inventor 王志玲崔玉杨小凤刘志莲郑鲁沂
Owner UNIV OF JINAN
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