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Preparation method of three-dimensional graphene composite material, and application

A composite material and graphene technology, applied in the direction of graphene, analytical materials, material electrochemical variables, etc., can solve the problems of complex professional operations, time-consuming procedures, expensive instruments, etc., and achieve simple and convenient operation, good stability, and sensitivity high effect

Active Publication Date: 2019-08-16
JIANGSU SOPO GRP +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although these traditional techniques show good detection performance, they still have some disadvantages, including time-consuming procedures and complicated professional operations and require expensive instruments

Method used

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  • Preparation method of three-dimensional graphene composite material, and application
  • Preparation method of three-dimensional graphene composite material, and application
  • Preparation method of three-dimensional graphene composite material, and application

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] Dissolve 46 mg of tris(hydroxymethyl)aminomethane in 10 mL of benzyl alcohol, completely dissolve in an oil bath at 70°C, and then cool to room temperature; add 1 mmol (0.35317 g) of iron acetylacetonate and 0.5 mmol (0.1318 g) of zinc acetylacetonate as metal The precursor was stirred vigorously until it was completely dissolved; then the mixed solution was transferred to a polytetrafluoroethylene-lined stainless steel autoclave, and placed in a 175°C oven to heat up for 48 hours to obtain a ZnFe-containing 2 o 4 Dark brown solution of nanoparticles; first wash with 4 times the volume of anhydrous ether, then wash 3 times with a mixed solution of ethanol and anhydrous ether, the volume ratio of ethanol to anhydrous ether = 1:1, centrifuge, and then the wet The precipitate was dispersed in ethanol and sonicated until a stable ZnFe 2 o 4 Nanoparticle dispersion 40mg / mL; take 15mL 4mg / mL graphene solution and add 0.5mL ZnFe 2 o 4 The nanoparticle dispersion was ultras...

Embodiment 2

[0027] Dissolve 46 mg of tris(hydroxymethyl)aminomethane in 10 mL of benzyl alcohol, completely dissolve in an oil bath at 70°C, and then cool to room temperature; add 1 mmol (0.35317 g) of iron acetylacetonate and 0.5 mmol (0.1318 g) of zinc acetylacetonate as metal The precursor was stirred vigorously until it was completely dissolved; then the mixed solution was transferred to a polytetrafluoroethylene-lined stainless steel autoclave, and placed in a 180°C oven to heat up for 48 hours to obtain a ZnFe-containing 2 o 4 The dark brown solution of nanoparticles; first wash with 4 times the volume of anhydrous ether, then wash 3 times with a mixed solution of ethanol and anhydrous ether, the volume ratio of ethanol to anhydrous ether=1:2, centrifuge, and then the wet The precipitate was dispersed in ethanol and sonicated until a stable ZnFe 2 o 4 Nanoparticle dispersion 40mg / mL; take 15mL 4mg / mL graphene solution and add 1mL ZnFe 2 o 4 The nanoparticle dispersion was ultras...

Embodiment 3

[0029] Dissolve 46 mg of tris(hydroxymethyl)aminomethane in 10 mL of benzyl alcohol, completely dissolve in an oil bath at 70°C, and then cool to room temperature; add 1 mmol (0.35317 g) of iron acetylacetonate and 0.5 mmol (0.1318 g) of zinc acetylacetonate as metal The precursor was stirred vigorously until it was completely dissolved; then the mixed solution was transferred to a polytetrafluoroethylene-lined stainless steel autoclave, and placed in a 180°C oven to heat up for 36 hours to obtain a ZnFe-containing 2 o 4 The dark brown solution of nanoparticles; first wash with 4 times the volume of anhydrous ether, then wash 3 times with a mixed solution of ethanol and anhydrous ether, the volume ratio of ethanol to anhydrous ether=1:2, centrifuge, and then the wet The precipitate was dispersed in ethanol and sonicated until a stable ZnFe 2 o 4Nanoparticle dispersion 40mg / mL; take 15mL 4mg / mL graphene solution and add 1.5mL ZnFe 2 o 4 The nanoparticle dispersion was ultra...

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PUM

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Abstract

The invention discloses a method for preparing a three-dimensional graphene composite material based on a benzyl alcohol route, and an application of the three-dimensional graphene composite materialthereof. The composite material takes benzyl alcohol as the solvent, nanoparticles with crystal form are synthesized through a hydrothermal method, the graphene is used for preparing the three-dimensional ZFO / GO / GCE composite material, and a glassy carbon electrode modified by the three-dimensional ZFO / GO / GCE composite material has the capacity of detecting the p-nitrophenol. The ZFO / GO / GCE is used as a detection platform, the preparation and the saving are easy, the stability is excellent, and the preparation method has good selectivity for the p-nitrophenol, the specificity recognition detection of the p-nitrophenol can be realized, the operation is simple and convenient, and the sensitivity is high.

Description

technical field [0001] The invention relates to the technical field of novel nanomaterial preparation and electrochemical detection, relates to a method for preparing a three-dimensional graphene composite material based on a benzyl alcohol route, and also relates to the application of the three-dimensional graphene composite material in the electrochemical detection of p-nitrophenol. Background technique [0002] They enable molecular-level control over nucleation and growth (size and well-defined homogeneous crystal morphology), reaction pathways, homogeneity, etc., during the preparation of materials using the liquid-phase route. However, the liquid-phase route requires a strong reducing agent, and the presence of the reducing agent in the solution medium can change the chemical properties of the precursor and the solution, thereby imparting the desired structural characteristics to the final product. Therefore, it is very important to develop a mild and benign liquid pha...

Claims

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Application Information

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IPC IPC(8): G01N27/30G01N27/48C01B32/182C01G49/00
CPCC01G49/0063C01B32/182G01N27/308G01N27/48
Inventor 朱桂生魏巍邵守言谢吉民黄春霞唐丽叶兴平
Owner JIANGSU SOPO GRP
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