Electrostatic spinning method of red fluorescent nanosheet Y2O2SO4: Eu3+
A Y2O2SO4, red fluorescence technology, applied in nanotechnology, nanotechnology, chemical instruments and methods, etc., can solve the problems of electrospinning preparation that have not been reported publicly, and achieve uniform morphology, no environmental pollution, and mild preparation conditions. Effect
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Embodiment 1
[0027] 0.550 g of Y (NO 3 ) 3 ·6H 2 O and 0.039 g Eu(NO 3 ) 3 ·6H 2 O was added to 4 milliliters of deionized water: absolute ethanol was a 1:3 mixed solvent, and the two nitrates were completely dissolved through magnetic stirring for 30 minutes, then 0.471 gram of PVP and 12 drops of glacial acetic acid were added in the solution, at 45 Stir at ℃ for 8 hours to prepare the spinning solution, let it cool down; put the spinning solution into the syringe, under the conditions of voltage 12 kV, flow rate 0.005 ml / min, and the distance from the needle tip to the collecting plate 12 cm Spinning obtains PVP-(Y(NO 3 ) 3 +Eu(NO 3 ) 3) composite fiber; the composite fiber collected on the aluminum foil is transferred to a clean small crucible, and the small crucible is placed in a large crucible containing a certain amount of sulfur powder 10 times the mass of the composite fiber membrane inside the large crucible, and the two After the crucible is covered, it is put into a m...
Embodiment 2
[0029] 0.627 g of Y (NO 3 ) 3 ·6H 2 O and 0.033 g Eu(NO 3 ) 3 ·6H 2 O was added to 4 ml of deionized water: absolute ethanol as a 1:2 mixed solvent, and the two nitrates were completely dissolved by magnetic stirring for 30 minutes, then 0.564 g of PVP and 12 drops of glacial acetic acid were added to the solution, and the The spinning solution was stirred for 8 hours at lower temperature to obtain a spinning solution, which was left to cool; the spinning solution was loaded into a syringe, and the spinning solution was spun under the condition that the voltage was 14 kV, the flow rate was 0.005 ml / min, and the distance from the needle tip to the collecting plate was 14 cm. Silk gets PVP-(Y(NO 3 ) 3 +Eu(NO 3 ) 3 ) composite fibers; transfer the composite fibers collected on the aluminum to a clean small crucible, place the small crucible in a large sulfur crucible containing 10 times the mass of the composite fiber film inside, cover the two crucibles together Put it ...
Embodiment 3
[0031] 0.706 g of Y (NO 3 ) 3 ·6H 2 O and 0.025 g Eu(NO 3 ) 3 ·6H 2 O was added to 4 ml of deionized water: absolute ethanol as a 1:1 mixed solvent, and the two nitrates were completely dissolved by magnetic stirring for 30 minutes, then 0.600 g of PVP and 16 drops of glacial acetic acid were added to the solution, and the The spinning solution was stirred for 8 hours at lower temperature to obtain a spinning solution, which was left to cool; the spinning solution was loaded into a syringe, and the spinning solution was spun under the condition that the voltage was 16 kV, the flow rate was 0.007 ml / min, and the distance from the needle tip to the collecting plate was 16 centimeters. Silk gets PVP-(Y(NO 3 ) 3 +Eu(NO 3 ) 3 ) composite fiber; the composite fiber collected on the aluminum foil is transferred to a clean small crucible, and the small crucible is placed in a large crucible containing 10 times the mass of composite fiber membrane sulfur in the small crucible. ...
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