Hollow copper sulphide/polypyrrole nanometer compound and application thereof
A technology of pyrrole nanometer and copper sulfide, which is applied in the field of nanomaterials, can solve the problems that limit the practical application and promotion of nanometer analog enzymes, FeS nanoparticles are not stable, and are susceptible to air oxidation, and achieve a short color development time and a wide range of applications. , The effect of chemical activity stabilization
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[0026] A hollow copper sulfide / polypyrrole nanocomposite with peroxidase-like activity is to use an oxidant to oxidize and polymerize a layer of polypyrrole on the surface of hollow copper sulfide nanoparticles;
[0027] The specific preparation method includes: using cuprous oxide as a template, adding sodium sulfide to sulfide cuprous oxide, gradually forming hollow copper sulfide through the Kirkendall effect, and then adding pyrrole monomer and oxidant to oxidize and polymerize the pyrrole monomer to form a polypyrrole shell layer.
[0028] The oxidizing agent is ammonium persulfate;
[0029] The particle size of the hollow copper sulfide nanoparticles is 100nm;
[0030] The polymerization is carried out at room temperature;
[0031] The thickness of the polypyrrole shell layer on the surface is controlled at 5-10nm.
[0032] The obtained hollow copper sulfide / polypyrrole composite aqueous solution was ultrasonically treated for 0.5h, then dropped on the copper grid, dr...
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