A preparation method of magnetic carbon nanotubes based on charge interaction
A magnetic carbon nanotube technology, applied in the field of nanomaterials, can solve the problems of energy consumption and complex preparation process, affecting the intrinsic characteristics of carbon nanotubes, and the performance of magnetic carbon nanotubes, so as to avoid energy consumption and complicated processes , easy operation and good performance
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[0026] A preparation method of magnetic carbon nanotubes based on charge interaction, based on the charge interaction between positively charged ferric iron tetroxide nanoparticles wrapped by cationic polyelectrolyte and negatively charged carbon nanotubes wrapped by anionic polyelectrolyte , the preparation method of the magnetic carbon nanotube obtained, the specific technical scheme is as follows:
[0027] (1) Preparation of cationic magnetic ferric ferric oxide nanoparticle solution: mix trivalent soluble aqueous solution with divalent soluble hydrochloric acid solution, and add the mixed solution dropwise to weak alkali aqueous solution to obtain black precipitate. The obtained precipitate is added to a stabilizer, and a cationic polyelectrolyte solution is added dropwise to obtain a cationic magnetic ferric oxide nanoparticle solution.
[0028] ⑵ preparation of magnetic carbon nanotubes. Add the carbon nanotubes and the prepared cationic magnetic ferric iron tetroxide n...
Embodiment
[0034] A method for preparing magnetic carbon nanotubes based on charge interaction, comprising the following steps:
[0035] ⑴Preparation of Cationic Magnetic Fe3O4 Nanoparticle Solution
[0036] The ferric chloride aqueous solution of 20 milliliters 1mol / L is mixed with the ferrous sulfate hydrochloric acid solution of 5 milliliters 2mol / L, and mixed solution is added dropwise in the 0.7mol / L ammoniacal liquor of 250 milliliters, obtains black precipitate, and obtained precipitate The compound is added in the tetramethyl ammonium hydroxide of 0.1mol / L, and dropwise adding 5 milliliters of mass fractions is 20% polydimethyl diallyl ammonium chloride solution, obtains cationic magnetic ferric iron tetroxide nanoparticle solution .
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