Preparation method of Zn-gamma-Fe2O3-based magnetic gel

Preparation method of Zn-gamma-Fe2O3-based magnetic gel

  • CN 101,887,791 A
  • Filed: 06/30/2010
  • Published: 11/17/2010
  • Est. Priority Date: 06/30/2010
  • Status: Active Application
First Claim
Patent Images

1. γ

  • -Fe 2O 3The preparation method of based magnetic gel is comprising following steps The first step;

    decentralized photo preparationAt first produce γ

    -Fe 2O 3Nanoparticle is then via ZnCl 2, FeCl 3, the treatment fluid heat treated formed of NaOH and HCl mixed aqueous solution, obtain Zn-γ

    -Fe 2O 3Particulate is as decentralized photo;

    ZnCl in the treatment fluid 2, FeCl 3, NaOH and HCl mol ratio be 0.02;

    0.04;

    0.35;

    0.06, γ

    -Fe during heat treated 2O 3The volume ratio of nanoparticle and treatment fluid is 1;

    20~

    30;

    Second step;

    preparation HNO 3The aqueous solution is as decentralized medium HNO 3Concentration is determined by following formula;

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