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Preparation method of polyaniline-loaded silver/cuprous oxide multi-element nano composite material and modified electrode

A nano-composite material, cuprous oxide technology, applied in the direction of electrochemical variables of materials, analysis of materials, material analysis by electromagnetic means, etc., to achieve the effect of good detection sensitivity

Pending Publication Date: 2021-12-17
NINGDE NORMAL UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

This method effectively solves the simultaneous detection of DA and UA and the problems of anti-interference and sensitivity in the process of DA and UA detection

Method used

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  • Preparation method of polyaniline-loaded silver/cuprous oxide multi-element nano composite material and modified electrode
  • Preparation method of polyaniline-loaded silver/cuprous oxide multi-element nano composite material and modified electrode
  • Preparation method of polyaniline-loaded silver/cuprous oxide multi-element nano composite material and modified electrode

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preparation example Construction

[0032] An embodiment of the present invention provides a method for preparing a polyaniline-supported silver / cuprous oxide multi-component nanocomposite material, comprising the following steps:

[0033] S1: Add 0.5mL of aniline monomer to 50mL of dichloromethane solution and ultrasonically disperse it evenly to form a transparent and uniform organic phase solution;

[0034] S2: Add 50 mL of 0.2 mol / L N-methylpyrrolidone aqueous solution and 2.323 g of camphorsulfonic acid to the organic phase solution sequentially under stirring conditions, stir at room temperature for a preset time and then let stand;

[0035] S3: Slowly add 5mL of 0.06g / mL ammonium persulfate aqueous solution into the reaction solution prepared in S2, let stand for a preset time and separate the lower methylene chloride, and filter the remaining solution through a mixed filter membrane to obtain a solid product;

[0036] S4: washing and drying the solid product to obtain PANI nanopowder doped with camphorsu...

Embodiment 1

[0051] Add 50mL of dichloromethane into the round bottom flask, then add 0.5mL of aniline monomer into the dichloromethane solution and ultrasonically disperse it evenly to form a transparent and uniform organic phase solution. Place the obtained organic phase solution on a magnetic stirrer, add 50mL of 0.2mol / L N-methylpyrrolidone aqueous solution to the solution under stirring, then add 2.323g of camphorsulfonic acid, stir at room temperature for 20min and then statically place. Weigh 0.3g of ammonium persulfate and dissolve it in 5mL of water. After it is completely dissolved, slowly add the ammonium persulfate solution along the wall of the round-bottomed flask to the methylene chloride-N-methylpyrrolidone reaction solution under static conditions. After reacting for 60 minutes, suck out the lower layer of dichloromethane with a rubber dropper and pour it into a waste liquid bottle. The remaining solution was filtered with a mixed filter membrane with a pore size of 0.22 ...

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Abstract

The invention provides a preparation method of a polyaniline-loaded silver / cuprous oxide multi-element nano composite material and a modified electrode. The preparation method of the polyaniline-loaded silver / cuprous oxide multi-element nano composite material comprises the following steps of: S1, dispersing an aniline monomer in dichloromethane; S2, sequentially adding an N-methyl pyrrolidone solution and camphorsulfonic acid while stirring, and reacting at room temperature; S3, adding an ammonium persulfate aqueous solution into the reaction solution, standing for reaction, separating lower-layer dichloromethane, and filtering the residual solution to obtain a solid product; S4, cleaning and drying the product to obtain camphorsulfonic acid doped PANI nano-powder; S5, dissolving the PANI nano-powder in a PBS (Phosphate Buffer Solution), adding ethylene glycol into the solution for mixing, adding copper sulfate pentahydrate and a silver acetate solution, and fully mixing them to obtain a PANI nano-composite material precursor solution; and S6, dissolving NaOH and glucose in the PBS solution, then adding the precursor solution into the mixture, carrying out mixing and heating reaction, and after the reaction is finished, filtering, cleaning and drying the product to obtain PANI nano composite material powder.

Description

technical field [0001] The invention specifically relates to a polyaniline-supported silver / cuprous oxide multi-component nanocomposite material and a preparation method for a modified electrode. Background technique [0002] Dopamine (DA) plays an important role in the functions of human metabolism, central nervous system, cardiovascular, hormone, kidney and other systems. Abnormal levels of DA can cause neurological disorders such as schizophrenia, Parkinson's disease, and epilepsy. Uric acid (UA) is a product of purine metabolism in organisms. Abnormal levels of UA have been associated with a variety of diseases, including Lesch-Nyan disease, intestinal, celiac, and hyperuricemia. The concentration of DA in the extracellular fluid of healthy individuals is extremely low (1×10 -8 ~1×10 -6 M), the concentration of DA in the extracellular fluid of Parkinson's patients was lower (1×10 -9 M). The ability to simultaneously and sensitively detect biologically important com...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N27/327G01N27/49
CPCG01N27/3277G01N27/3278G01N27/49
Inventor 刘锡尧谢红璐李萍叶陈清林玲玲
Owner NINGDE NORMAL UNIV