Core-shell structured silicate luminescent material and preparation method thereof

Core-shell structured silicate luminescent material and preparation method thereof

CN
  • CN 102,191,055 B
  • Filed: 03/11/2010
  • Issued: 11/13/2013
  • Est. Priority Date: 03/11/2010
  • Status: Active Grant
First Claim
Patent Images

1. a core-shell structured silicate luminescent material preparation method, it comprises the steps:

  • After being mixed, ethanol, deionized water and ammoniacal liquor add tetraethoxy to make SiO 2nanometer ball;

    Again Press structural formula Ln 2-xsiO 5;

    Tb x@SiO 2middle respective element stoichiometric ratio adds Ln salts solution and Tb salts solution, and wherein, Ln is rare earth element, and@coats, and x is 0<

    x≤

    0.5;

    Add enough oxalic acid solutions in above-mentioned solution, then with ammoniacal liquor, regulate the pH value to weakly alkaline, then stirred successively, ageing, filtration, washing precipitation drying obtain presoma;

    Presoma is heat-treated and reduce and process the rear cooling described core-shell structured silicate luminescent material finished product that obtains.

View all claims
    ×
    ×

    Thank you for your feedback

    ×
    ×