Production method of spindle-shaped nano ZnO monocrystal
A spindle-shaped, nano-technology, applied in the field of preparation of nano-ZnO single crystals, can solve problems such as unreported, and achieve the effects of simple process equipment, short reaction period and regular shape
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Embodiment 1
[0014] Embodiment 1: Analytical pure zinc nitrate hexahydrate (Zn(NO 3 ) 2 ·6H 2 O) add distilled water, and constantly stir, be mixed with Zn 2+ Concentration is the transparent solution of 0.8mol / L, and the obtained solution is marked as A; Add analytically pure sodium hydroxide (NaOH) to A solution, make [Zn 2+ ] / [OH - ]=1:2 molar ratio, namely [OH - ] concentration is 1.6mol / L, and constantly stirs, forms the precursor solution, and the gained solution is recorded as B; Pour the B solution prepared above into the hydrothermal reaction kettle, and the filling degree is controlled at 70%; then seal the hydrothermal reaction kettle , and put it into the MDS-6 temperature-pressure dual-control microwave hydrothermal reaction apparatus; select the pressure control mode for the reaction. The hydrothermal pressure is controlled at 3.0MPa, the reaction time is controlled at 20min, and naturally cooled to room temperature after the reaction is completed; the hydrothermal react...
Embodiment 2
[0016] Embodiment 2: Analytical pure zinc nitrate hexahydrate (Zn(NO 3 ) 2 ·6H 2 O) add distilled water, and constantly stir, be mixed with Zn 2+ Concentration is the transparent solution of 0.8mol / L, and the obtained solution is marked as A; Add analytically pure sodium hydroxide (NaOH) to A solution, make [Zn 2+ ] / [OH - ]=1:2 molar ratio, namely [OH - ] concentration is 1.6mol / L, and constantly stirs, forms the precursor solution, and the gained solution is recorded as B; Pour the B solution prepared above into the hydrothermal reaction kettle, and the filling degree is controlled at 70%; then seal the hydrothermal reaction kettle , and put it into the MDS-6 temperature-pressure dual-control microwave hydrothermal reaction apparatus; select the pressure control mode for the reaction. The hydrothermal pressure is controlled at 3.0MPa, the reaction time is controlled at 40min, and naturally cooled to room temperature after the reaction is completed; the hydrothermal react...
Embodiment 3
[0017] Embodiment 3: Analytical pure zinc nitrate hexahydrate (Zn(NO 3 ) 2 ·6H 2 O) add distilled water, and constantly stir, be mixed with Zn 2+ Concentration is the transparent solution of 0.8mol / L, and the obtained solution is marked as A; Add analytically pure sodium hydroxide (NaOH) to A solution, make [Zn 2+ ] / [OH - ]=1:2 molar ratio, namely [OH - ] concentration is 1.6mol / L, and constantly stirs, forms the precursor solution, and the gained solution is recorded as B; Pour the B solution prepared above into the hydrothermal reaction kettle, and the filling degree is controlled at 70%; then seal the hydrothermal reaction kettle , and put it into the MDS-6 temperature-pressure dual-control microwave hydrothermal reaction apparatus; select the pressure control mode for the reaction. The hydrothermal pressure is controlled at 3.0MPa, the reaction time is controlled at 60min, and naturally cooled to room temperature after the reaction is completed; the hydrothermal react...
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