A kind of high-purity ternary metal oxide Zn 2 sno 4 Preparation method of nanocrystals
A ternary metal and oxide technology, applied in chemical instruments and methods, tin compounds, nanotechnology, etc., can solve inevitable problems and achieve the effect of low temperature, no impurity elements, and high purity
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[0025] A kind of high-purity ternary metal oxide Zn of the present invention 2 SnO 4 The preparation method of nanocrystals uses liquid-phase laser ablation and solvothermal method to obtain high-activity solvothermal precursors by liquid-phase laser ablation of high-purity metal targets (zinc targets and tin targets) immersed in the solution. Zinc stannate nanocrystals with single-phase structure, good crystallinity, and uniform and controllable morphology were synthesized by solvothermal method under relatively mild conditions. By changing the laser ablation time, the amount of deionized water and auxiliary agents (ethanol, hydrogen peroxide, ammonia water), reaction temperature, and reaction time, high-purity ternary metal oxides Zn with different sizes and shapes can be obtained. 2 SnO 4 Nanocrystals, specifically comprising the following steps:
[0026] Step 1. Add the prepared solution into the reaction vessel, place the tin source target in the solution, and soak the...
Embodiment 1
[0036]Using a combination of liquid-phase laser ablation and solvothermal method, high-activity solvothermal precursors are obtained by liquid-phase laser ablation of high-purity metal targets (zinc targets and tin targets) immersed in the solution. A high-purity ternary metal oxide Zn with a single phase structure, good crystallinity, and uniform and controllable morphology was synthesized under milder conditions. 2 SnO 4 Nanocrystalline. Specific steps are as follows:
[0037] Step 1. Add 60mL of deionized water and 1mL of hydrogen peroxide into the container, and immerse the metal tin target in the solution.
[0038] Step 2, using a Nd:YAG solid-state laser to ablate the tin target immersed in the solution for 40 minutes, the pulse frequency is 10 Hz, the laser wavelength is 1064 nm, and the laser energy is 100 mJ;
[0039] Step 3. Take out the tin target, place the zinc target in the original solution, and use the same laser energy and laser pulse frequency to ablate fo...
Embodiment 2
[0046] Using a combination of liquid-phase laser ablation and solvothermal method, high-activity solvothermal precursors are obtained by liquid-phase laser ablation of high-purity metal targets (zinc targets and tin targets) immersed in the solution. A high-purity ternary metal oxide Zn with a single phase structure, good crystallinity, and uniform and controllable morphology was synthesized under milder conditions. 2 SnO 4 Nanocrystalline. Specific steps are as follows:
[0047] Step 1. Add 30mL of deionized water and 2mL of hydrogen peroxide into the container, and immerse the metal tin target in the solution.
[0048] Step 2, using a Nd:YAG solid-state laser to ablate the tin target immersed in the solution for 20 minutes, the pulse frequency is 5 Hz, the laser wavelength is 1064 nm, and the laser energy is 120 mJ;
[0049] Step 3. Take out the tin target, place the zinc target in the original solution, and use the same laser energy and laser pulse frequency to ablate fo...
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