Zinc oxide luminescent material and preparation method thereof
A luminescent material, zinc oxide technology, applied in luminescent materials, chemical instruments and methods, etc., can solve problems such as low luminous efficiency, and achieve the effects of high luminous efficiency, high luminous efficiency and simple process
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Embodiment 1
[0033] Example 1 Preparation of ZnO: 0.0002Au zinc oxide luminescent material
[0034] Synthesis of precursors by hydrothermal method: Weigh 2.975g zinc nitrate hexahydrate and dissolve in 10mL water, add 2mL to a concentration of 10 -3 mol / L Au metal nanoparticle sol, keep stirring for 5 hours, add sodium hydroxide to adjust the pH value to 8-10; then add the solution into a 50mL reaction kettle and seal it, and keep it at 160°C for 24 hours to obtain Au metal nanoparticle Particle precursors.
[0035] The obtained precursor was calcined at 500° C. for 5 h to obtain ZnO powder doped with Au metal nanoparticles.
[0036] Finally, the ZnO powder doped with Au metal nanoparticles was mixed with N at a volume ratio of 95:5. 2 and H 2 Calcined at 800° C. for 8 hours in an atmosphere formed by a mixed gas, and cooled to room temperature to obtain a ZnO:0.0002Au zinc oxide luminescent material doped with Au metal nanoparticles.
Embodiment 2
[0037] Example 2 Preparation of ZnO: 0.0001Ag zinc oxide luminescent material
[0038] The precursor was synthesized by sol-gel method: Weigh 2.195g of zinc acetate dihydrate and dissolve it in 20mL of ethanol, add 1mL to a concentration of 10 -3 mol / L Ag metal nanoparticle sol, stirring continuously for 10h, then weighing 1.5g oxalic acid dihydrate and 0.5g citric acid were dissolved in 30mL ethanol solution. In a water bath at 80° C., slowly add the oxalic acid solution to the zinc acetate solution under continuous stirring, and continue stirring for 15 hours to form a wet gel. After standing and drying the wet gel, a precursor containing Ag metal nanoparticles is obtained.
[0039] The obtained precursor was calcined at 320 °C for 5 h to obtain ZnC doped with Ag metal nanoparticles 2 o 4 Powder.
[0040] Finally, ZnC doped with Ag metal nanoparticles 2 o 4 The powder is in N with a volume ratio of 95:5 2 and H 2 Calcined at 700° C. for 18 hours in an atmosphere forme...
Embodiment 3
[0041] Example 3 Preparation of ZnO:0.001Ag zinc oxide luminescent material
[0042] According to the method described in Example 2, using 1 mL concentration of 10 -2 mol / L Ag metal nanoparticle sol to prepare ZnO:0.001Ag zinc oxide luminescent material doped with Ag metal nanoparticles.
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