One-step synthesis method of tetragonal zirconium dioxide by means of water-assisted diethylene glycol
A technology of diethylene glycol and zirconia, applied in the field of nanomaterials
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Embodiment 1
[0021] Step 1: Measure 3ml of water and 7ml of diethylene glycol, stir well and add 2.15g of zirconium nitrate pentahydrate; prepare 5ml of 5mol / L sodium hydroxide solution;
[0022] Step 2: Under stirring conditions, mix the two solutions prepared above, continue to stir for 15 minutes to make the reaction system uniform, move to a 25ml polytetrafluoroethylene-lined stainless steel reaction kettle, seal it and place it in an oven at 180°C for 8 hours ; Step 3: Wash the reaction product 2-3 times with water, 2 times with alcohol, and dry at 40°C for 10 hours.
[0023] Obtain high-purity tetragonal self-stabilized zirconia nanoparticles with a particle size of about 50nm. like figure 1 It is the X-ray diffraction spectrum of the product tetragonal phase zirconia nanoparticles, and the particle size is calculated to be about 50nm through computer simulation. figure 2 It is a scanning electron micrograph of the product tetragonal phase zirconia, as shown in the figure, the par...
Embodiment 2
[0025] Step 1: Measure 3ml of water and 7ml of diethylene glycol, stir well and add 2.15g of zirconium nitrate pentahydrate; prepare 7.5ml of 5mol / L sodium hydroxide solution;
[0026] Step 2: with embodiment 1 step 2;
[0027] Step 3: same as embodiment 1 step 3;
[0028] Obtain high-purity tetragonal self-stabilized zirconia nanoparticles with a particle size of about 50nm.
Embodiment 3
[0030] Step 1: Measure 3ml of water, 7ml of diethylene glycol, stir evenly and add 1.61g of zirconium oxychloride octahydrate; prepare 5ml of 5mol / L sodium hydroxide solution;
[0031] Step 2: with embodiment 1 step 2;
[0032] Step 3: same as embodiment 1 step 3;
[0033] Obtain high-purity tetragonal self-stabilized zirconia nanoparticles with a particle size of about 50nm.
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Abstract
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