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Preparation method of three-element nano composite material graphene-polyaniline-polyaminobenzenesulfonic acid

A nanocomposite material, polyaminobenzenesulfonic acid technology, applied in the field of composite materials, can solve problems such as the difficulty of direct electron transfer, and achieve the effect of good stability and large current response

Inactive Publication Date: 2017-03-15
过冬
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The direct electrochemical properties of enzyme biosensors are characterized by the direct transfer of electrons between the active center of the sensitive element and the electrode surface. However, direct electron transfer without any transfer media or reagents is very difficult.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] A preparation method of ternary nanocomposite graphene oxide-polyaniline-polyaminobenzenesulfonic acid, comprising:

[0020] (1) under ice-bath condition, under mechanical stirring condition, add flake graphite powder in 98% vitriol oil, then add the sodium nitrate that accounts for graphite powder 50wt%, and the potassium permanganate that accounts for graphene 2 times weight, ice React in the bath for 30min;

[0021] (2) heating to 30° C. and constant temperature for 4 hours, adding deionized water and hydrogen peroxide, stirring for 1 hour, adding 5% concentration of HCl and centrifugal washing until there is no sulfate ion to obtain graphene oxide powder;

[0022] (3) Ultrasonic dispersion of the graphene oxide powder is configured into a uniform suspension of 0.3g / L, and aniline and m-aminobenzenesulfonic acid, protonic acid HCl and initiator ammonium persulfate are added successively; aniline and m-aminobenzenesulfonic acid The mass ratio is 4:1;

[0023] (4) re...

Embodiment 2

[0026] A preparation method of ternary nanocomposite graphene oxide-polyaniline-polyaminobenzenesulfonic acid, comprising:

[0027] (1) under ice-bath condition, under mechanical stirring condition, add flake graphite powder in 98% vitriol oil, then add the sodium nitrate that accounts for graphite powder 80wt%, and the potassium permanganate that accounts for graphene 4 times weight, ice Reaction in the bath for 120min;

[0028] (2) heating to 40° C. for constant temperature for 5 hours, adding deionized water and hydrogen peroxide, stirring for 3 hours, adding 5% concentration of HCl and centrifugal washing until there is no sulfate ion to obtain graphene oxide powder;

[0029] (3) Ultrasonic dispersion of the graphene oxide powder is configured into a uniform suspension of 1g / L, and aniline and m-aminobenzenesulfonic acid, protonic acid HCl and initiator ammonium persulfate are added successively; The mass ratio is 6:1;

[0030] (4) react under stirring at normal temperat...

Embodiment 3

[0033] A preparation method of ternary nanocomposite graphene oxide-polyaniline-polyaminobenzenesulfonic acid, comprising:

[0034] (1) under ice bath condition, under mechanical stirring condition, add flake graphite powder in 98% vitriol oil, then add the sodium nitrate that accounts for graphite powder 70wt%, and the potassium permanganate that accounts for graphene 3 times of weight, ice React in the bath for 60 minutes;

[0035] (2) heating to 35° C. and constant temperature for 4.5 hours, adding deionized water and hydrogen peroxide, stirring for 2 hours, adding 5% concentration of HCl and centrifugal washing until there is no sulfate ion to obtain graphene oxide powder;

[0036] (3) Ultrasonic dispersion of the graphene oxide powder is configured into a uniform suspension of 0.7g / L, and aniline and m-aminobenzenesulfonic acid, protonic acid HCl and initiator ammonium persulfate are added successively; aniline and m-aminobenzenesulfonic acid The mass ratio is 5:1;

[0...

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PUM

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Abstract

The invention discloses a preparation method of a three-element nano composite material graphene-polyaniline-polyaminobenzenesulfonic acid. The composite material prepared by the method has great current response to AP and high stability for electrode modification, and thus, is suitable to be used as an AP sensing material.

Description

technical field [0001] The invention relates to the technical field of composite materials, in particular to a preparation method of a ternary nanocomposite material graphene-polyaniline-polyaminobenzenesulfonic acid. Background technique [0002] Electrochemical biosensors are sensing devices that combine biospecific recognition processes and electrochemistry to achieve detection. Specifically, the enzyme or simulated material is used as a biological sensitive element, and the electrochemically modified electrode is used as a signal converter to capture the measurable signal generated by the reaction between the target and the sensitive element, which is proportional to the concentration of the target signal , to achieve quantitative determination of electroactive targets. Electrochemical biosensors have the advantages of simple structure, low cost, high sensitivity, high selectivity and good stability. [0003] The direct electrochemical properties of enzyme biosensors a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08G73/02C08K9/02C08K7/00C08K3/04
CPCC08G73/026C08G73/0266C08K3/04C08K7/00C08K9/02C08K2201/011
Inventor 过冬
Owner 过冬