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Preparation method of pyrolysis derived three-dimensional interconnected porous carbon material and application thereof

A three-dimensional interconnected, porous carbon technology, which is used in the preparation/purification of carbon, electrochemical variables of materials, scientific instruments, etc., to achieve wide application prospects, good detection effect, and high detection sensitivity.

Pending Publication Date: 2020-06-12
HUBEI UNIV FOR NATITIES
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Benefits of technology

This new way makes it easier for pills or other substances that contain harmful chemical compounds like quinones (often used medications) without being detected by current methods such as colorimetric analysis. Its technical effect lies on its simplicity, speediness, cost savings, ease of use, and ability to detect even small amounts of these materials accurately while also having wide applications potential due to their superior properties over existing techniques.

Problems solved by technology

This patents discuss various ways to detect harmful substances from water or air samples containing hydroxy quinones/phenoxyls that pose health hazards. Current techniques involve complex processes with many technical drawbacks including requiring extra steps during manufacturing, making them difficult to scale up while maintaining accuracy over longer periods. There also needs a simpler but quicker way to prepare 3D porous carbon material without causing damage to equipment.

Method used

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  • Preparation method of pyrolysis derived three-dimensional interconnected porous carbon material and application thereof
  • Preparation method of pyrolysis derived three-dimensional interconnected porous carbon material and application thereof
  • Preparation method of pyrolysis derived three-dimensional interconnected porous carbon material and application thereof

Examples

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Embodiment 1

[0050] A method for preparing a hydroquinone and catechol electrochemical sensor based on sodium erythorbate pyrolysis derivatized three-dimensional interconnected porous carbon, comprising the following steps in sequence:

[0051] (1) Weigh 2g of sodium erythorbate (Sodium ascorbate) in a crucible, and raise the temperature to 1000°C or 900°C or 800°C or 700°C at a heating rate of 10°C / min under the protection of nitrogen flow, and keep it warm for 300min, take out, grinding;

[0052] (2) Place the ground material in a 0.5mol / L HCl solution and stir for 12 hours to remove the residual metal Na ions, separate the solid, wash three times with twice distilled water and absolute ethanol, and then place it at 60°C Dry in an oven for 12 hours, take it out, and name this new three-dimensional interconnected porous carbon material SDAIPC-1000 (1000 refers to the pyrolysis temperature in step (1), the same below), SDAIPC-900, SDAIPC-800, SDAIPC-700 ;

[0053] (3) Dissolve 10 mg of t...

Embodiment 2

[0059] A method for preparing a hydroquinone and catechol electrochemical sensor based on zinc gluconate pyrolysis derivatized three-dimensional interconnected porous carbon, comprising the following steps in sequence:

[0060](1) Weigh 2g of zinc gluconate (Zinc gluconate) in a crucible, raise the temperature to 900°C at a heating rate of 10°C / min under the protection of nitrogen flow, and keep it warm for 300min, take it out and grind it;

[0061] (2) Place the ground material in a 0.5mol / L HCl solution and stir for 12 hours to remove the remaining metal Zn ions, separate the solid, wash three times with twice distilled water and absolute ethanol, and then place it at 60°C Dry it in an oven for 12 hours, take it out, and name this new three-dimensional interconnected porous carbon material ZGDIPC;

[0062] (3) Dissolve 10 mg of the new ZGDIPC composite material in 10 mL of DMF, and ultrasonicate for 3 hours in an ultrasonic instrument to obtain a ZGDIPC dispersion;

[0063]...

Embodiment 3

[0068] A method for preparing a hydroquinone and catechol electrochemical sensor based on sodium alginate pyrolysis derivatized three-dimensional interconnected porous carbon, comprising the following steps in sequence:

[0069] (1) Weigh 2g of sodium alginate (Sodium alginate) into a crucible, heat it up to 900°C at a heating rate of 10°C / min under the protection of nitrogen flow, and keep it warm for 300min, take it out, and grind it;

[0070] (2) Place the ground material in a 0.5mol / L HCl solution and stir for 12 hours to remove the residual metal Na ions, separate the solid, wash three times with twice distilled water and absolute ethanol, and then place it in a 60°C oven Dry it for 12 hours, take it out, and name this new three-dimensional interconnected porous carbon material SAlDIPC;

[0071] (3) Dissolve 10 mg of the new SAlDIPC composite material in 10 mL of DMF, and ultrasonicate for 3 hours in an ultrasonic instrument to obtain a SAlDIPC dispersion;

[0072] (4) T...

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Abstract

The invention belongs to the technical field of material preparation and electrochemical sensor preparation, and particularly discloses a preparation method of a pyrolysis derived three-dimensional interconnected porous carbon material, and application of the 3DIPC material prepared by the method to the technical field of electrochemical sensor preparation. According to the method, organic metal salt is used as a precursor, 3DIPC is prepared through simple one-step pyrolysis, use of an activating agent is avoided, and damage to instruments and equipment is reduced. The method comprises the following steps: dispersing 3DIPC in an organic solvent to prepare an electrode material 3DIPC dispersion liquid, and further modifying the surface of an electrode with the 3DIPC dispersion liquid by using a drop-coating method to prepare the electrochemical sensor capable of simultaneously detecting phenolic substances hydroquinone and catechol. Experimental results show that the method is suitablefor industrial production, the electrochemical sensor has a good detection effect on hydroquinone and catechol, the linear range is 0.4 -20 [mu]mol/L (HQ) and 0.4 -20 [mu]mol/L (CA), and the detectionlimits are 0.028 [mu]mol/L (HQ) and 0.035 [mu]mol/L (CA).

Description

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Claims

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Application Information

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Owner HUBEI UNIV FOR NATITIES
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