▎ 摘　　要

NOVELTY - Dye-graphene-polyvinyl alcohol ternary fluorescence composite comprises water soluble graphene, 1x 10-4 to 5g/L of 1-10 mol.% indocyanine dye and 0.1-10 wt.% polyvinyl alcohol aqueous solution. USE - Dye-graphene-polyvinyl alcohol ternary fluorescence composite. ADVANTAGE - The dye-graphene-polyvinyl alcohol ternary fluorescence composite has good thermal stability, mechanical strength and fluorescent property, and is prepared in simple manner. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for a method for preparing dye-graphene-polyvinyl alcohol ternary fluorescence composite, which involves: (A) dissolving polyvinyl alcohol in deionized water under heating at 85-100 degrees C to obtain 0.1-10 wt.% polyvinyl alcohol aqueous solution; (B) adding the obtained polyvinyl alcohol aqueous solution with indocyanine dye and water soluble graphene under stirring at room temperature for 1-2 hours to obtain mixture; and (C) subjecting the mixture to 20-100 kilohertz ultrasonic frequency, and drying for at room temperature for 24 hours to obtain the desired product.