The method that pulse electromagnetic field prepares anatase-type nanometer titanium dioxide

The method that pulse electromagnetic field prepares anatase-type nanometer titanium dioxide

  • CN 104,891,566 B
  • Filed: 06/10/2015
  • Issued: 12/05/2017
  • Est. Priority Date: 06/10/2015
  • Status: Active Grant
First Claim
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1. a kind of method that pulse electromagnetic field prepares anatase-type nanometer titanium dioxide, it is characterized in that:

  • Comprise the following steps that:

    1.1st, anhydrous ethanol solvent is taken, according to the volume ratio 1 of butyl titanate and absolute ethyl alcohol;

    1~1;

    Butyl titanate is added nothing by 3In water-ethanol, 5min~15min is stirred, butyl titanate dilution is made;

    1.2nd, by water and absolute ethyl alcohol according to volume ratio 1;

    3~1;

    5 is well mixed, is configured to ethanol water;

    1.3rd, add glacial acetic acid to ethanol water and adjust ethanol water pH value to 3~4;

    1.4th, whipping step 1.3 is through adjusting the ethanol water of pH value and adding butyl titanate dilution, the butyl titanate dilutionThe volume ratio of liquid and ethanol water is 1;

    1~1;

    1.5, arteries and veins is applied to reaction system while butyl titanate dilution is addedRush electromagnetic field processing, during pulse electromagnetic field processing, the burst length is 0.5min~5min, and pulse voltage is 300V~700V, arteries and veinsIt is 1Hz~5Hz to rush frequency;

    After being disposed, continue to stir 30min~60min, obtain mixed solution;

    1.5th, the mixed solution for preparing step 1.4 is put into vacuum drying chamber, after drying 8h~16h at 40 DEG C~60 DEG C,100 DEG C~110 DEG C are continued to dry 8h~16h, obtain solid particle;

    1.6th, the solid particle grind into powder for obtaining step 1.5, is put into Muffle furnace, and 3h is calcined at 450 DEG C~550 DEG C~5h, anatase type nano TiO is made2Powder.

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