Method for preparing water-soluble NaYF4 up-conversion luminescent material
A luminescent material, water-soluble technology, applied in luminescent materials, chemical instruments and methods, rare earth metal compounds, etc., can solve problems such as difficult to disperse, achieve the effects of pollution-free by-products, low equipment requirements, and easy scale-up
Inactive Publication Date: 2010-12-29
DONGHUA UNIV
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The invention relates to a method for preparing a water-soluble NaYF4 up-conversion luminescent material, which comprises the following steps of: (1) adding 1 to 30mmol of NaF solid into 3 to 20mL of ethylene glycol to obtain solution A; (2) adding 0.1 to 2g of polyvinylpyrrolidone into the 3 to 20mL of ethylene glycol, dispersing, and adding 0.05 to 5mmol of solid LnCl3 to obtain solution B; and (3) adding A into B, performing ultrasonic stirring for 30 minutes, transferring to a high pressure reactor, reacting at the temperature of between 140 and 240 DEG C for 1 to 48 hours, and centrifugally drying to obtain the water-soluble NaYF4 up-conversion luminescent material. The method has the characteristics of low reaction temperature, short reaction time, low requirement on equipment, no harm of byproducts, simpler operation, and easy industrialization; and the prepared material has the advantages of controllable crystalline phase, adjustable luminescence, and good application prospect.
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Rare earth metal compoundsLuminescent compositions
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