Europium-excited strontium borate ultraviolet fluorescent powder and preparation method thereof

The invention relates to the technical field of fluorescent powder preparation, in particular to europium-excited strontium borate ultraviolet fluorescent powder and a preparation method thereof. Thechemical formula of the ultraviolet fluorescent powder is SrxB4O7:Euy, x is larger than or equal to 0...

Full description

Saved in:
Bibliographic Details
Main Authors WU ZHAORU, WEN QIYU, XIAO HONGYING, XU JINQUAN, LIN HUIHUA
Format Patent
LanguageChinese
English
Published 26.02.2021
Subjects
ADHESIVES
CHEMISTRY
DYES
MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FORELSEWHERE
METALLURGY
MISCELLANEOUS APPLICATIONS OF MATERIALS
MISCELLANEOUS COMPOSITIONS
NATURAL RESINS
PAINTS
POLISHES
Online AccessGet full text

Cover

More Information
Summary:The invention relates to the technical field of fluorescent powder preparation, in particular to europium-excited strontium borate ultraviolet fluorescent powder and a preparation method thereof. Thechemical formula of the ultraviolet fluorescent powder is SrxB4O7:Euy, x is larger than or equal to 0.92 and smaller than 1.0, and y is larger than or equal to 0.01 and smaller than or equal to 0.08.The method comprises the following steps: (1) weighing raw materials: weighing SrCO3 and Eu2O3 according to the molar ratio of Sr to Eu in the chemical formula, weighing H3BO3 according to 1.1-1.2 times of the molar ratio of B in the chemical formula, and uniformly mixing the raw materials; (2) pre-sintering: putting the mixed raw materials into a crucible, and firing in air; (3) re-sintering: cooling, crushing and sieving the pre-sintered powder, putting the powder into a crucible, and putting the crucible into a high-temperature furnace for re-sintering; (4) acid treatment: putting the sintered powder into an acid so
Bibliography:Application Number: CN202011319432