A kind of dendritic zno nanowire array structure material and its preparation method and application
A nanowire array, dendritic technology, applied in nanotechnology, nanotechnology, nanotechnology for materials and surface science, etc., can solve problems such as being unsuitable for large-scale production, and achieve large-scale production. Easy-to-use effects
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Embodiment 1
[0025] Example 1 Preparation of Dendritic Hierarchical ZnO Nanowire Array Structure Material
[0026] (1) Put the blank FTO conductive glass in acetone and alcohol for 10 minutes, then rinse with deionized water and dry.
[0027] (2) Preparation of primary ZnO nanowire arrays:
[0028] 0.15mol / L of Zn(NO 3 ) 2 solution and (CH 2 ) 6 N 4 The solutions are mixed in equal volumes, and the pre-cleaned FTO conductive glass is inserted into the mixed solution at an angle of 45°. Seal it and put it in a constant temperature drying oven at 95°C. After reacting at a constant temperature for 4 hours, take it out, rinse it with deionized water and dry it. The primary ZnO nanowire array SEM and XRD structures were prepared as figure 1 and image 3 (b).
[0029] (3) Take an appropriate amount of 0.25mol / L Zn(CH 3 COO) 2 The colloid is placed on the FTO conductive glass that has grown the primary ZnO nanowire array, and the conductive glass is placed on a desktop glue homogenizer...
Embodiment 2
[0033] Dendritic ZnO nanowire array structure materials were prepared according to the method in Example 1. The difference is that:
[0034] 1) In step 2), the temperature of the hydrothermal reaction is 120° C., and the time is 3 hours; the concentrations of zinc nitrate and hexamethylenetetramine in the mixed solution are both 0.2 mol / L.
[0035] 2) In step 3), the Zn(CH 3 COO) 2 The colloid concentration is 0.3mol / L;
[0036] 3) In step 4), the hydrothermal synthesis temperature is 120° C.; the hydrothermal reaction time is 2 h; the concentrations of zinc nitrate and hexamethylenetetramine in the mixed solution are both 0.07 mol / L.
Embodiment 3
[0038] Dendritic ZnO nanowire array structure materials were prepared according to the method in Example 1. The difference is that:
[0039] 1) In step 2), the temperature of the hydrothermal reaction is 80° C., and the time is 2 hours; the concentrations of zinc nitrate and hexamethylenetetramine in the mixed solution are both 0.1 mol / L.
[0040] 2) In step 3), the Zn(CH 3 COO) 2 The colloid concentration is 0.3mol / L;
[0041] 3) In step 4), the hydrothermal synthesis temperature is 80°C; the hydrothermal reaction time is 2h; the concentrations of zinc nitrate and hexamethylenetetramine in the mixed solution are both 0.02mol / L.
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