Ultrathin boron nitride nanosheet synthesis method

Ultrathin boron nitride nanosheet synthesis method

  • CN 106,395,768 A
  • Filed: 11/01/2016
  • Published: 02/15/2017
  • Est. Priority Date: 11/01/2016
  • Status: Active Application
First Claim
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1. a kind of synthetic method of ultrathin boron nitride nanosheet, is prepared according to the following steps boron nitride nanosheet:

  • (1) in mass ratio 1;

    2~

    6 weigh hexagonal boron nitride powder and potassium permanganate powder, and grinding becomes uniform mixed-powder;

    (2) by concentrated sulphuric acid and phosphoric acid by volume 8;

    Reaction dissolvent is done in 1~

    2 mixing;

    (3) by hydrogen peroxide and deionized water by volume 1;

    Simultaneously mixed solution is done in cold preservation for 6~

    20 mixing;

    (4) mixed-powder that step (1) obtains is added in the mixed acid reaction dissolvent that step (2) prepares, be heated to 70~

    78DEG C stirring reaction 10~

    14 hours;

    Add the mixed solution through cold preservation in step (3), continue magnetic force under the conditions of ice-water bath and stirMix 1.5~

    2 hours, obtain mixed liquor;

    (5) step (4) gained mixed liquor is carried out supersound process, then the low-speed centrifugal 10 being 3000~

    5000rpm with rotating speed~

    30 minutes, take the supernatant, then the high speed centrifugation being 16000~

    20000rpm with rotating speed 10~

    30 minutes, take upper strata clearLiquid;

    With dehydrated alcohol and deionized water eccentric cleaning until pH>

    3, obtain boron nitride ultrathin nanometer piece after being dried.

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