Double-faced zinc oxide nanoarray photocatalytic material and preparation method thereof
A photocatalytic material and zinc oxide nanotechnology are applied in the field of photocatalytic materials based on double-sided ZnO nanoarrays and their preparation to achieve the effects of improving utilization, strong controllability and simple operation
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Embodiment 1
[0024] Example 1: Preparation of double-sided ZnO nanorod arrays on a quartz substrate.
[0025] 1. Substrate cleaning: the quartz substrate is selected with an area of l×lcm 2 1. Quartz glass with a thickness of 1mm was ultrasonically cleaned in acetone and absolute ethanol for 10 minutes respectively, and then deionized water was used for ultrasonic cleaning for 10 minutes. After the quartz substrate was reversed, the above cleaning process was repeated, and then the quartz substrate was vertically Place it upright, and use acetone, absolute ethanol and deionized water to sonicate for 10 minutes to make both surfaces of the substrate completely clean, and finally dry it.
[0026] 2. Preparation of double-sided seed layer: Using radio frequency magnetron sputtering technology, the cleaned quartz substrate is fixed on the sample stage of radio frequency magnetron sputtering deposition equipment, and the vacuum chamber is evacuated with a mechanical pump and a molecular pump....
Embodiment 2
[0029] Example 2: Photocatalytic performance test of double-sided ZnO nanorod arrays.
[0030] The double-sided ZnO nanorod array obtained in Example 1 was used for photocatalytic degradation of methyl orange solution, and the irradiation light source was a solar simulator (500W xenon lamp). The specific process is: the area is 1cm 2 Put the sample vertically into the methyl orange solution, irradiate the solution and the sample surface with a simulated light source for 150 minutes, take out part of the methyl orange solution at regular intervals, and test its absorbance with a UV spectrophotometer. In order to compare the photocatalytic effect of the double-sided structured photocatalytic materials, the photocatalytic test was also carried out on the single-sided ZnO nanorod arrays obtained on the quartz substrate under the same conditions. The result is as Figure 5 As shown, compared with single-sided ZnO nanoarrays, the double-sided ZnO nanoarrays exhibited better photoc...
Embodiment 3
[0031] Example 3: Preparation of double-sided ZnO nanowire arrays.
[0032] Change the concentration of zinc acetate and hexamethylenetetramine solution in Example 1 to 0.01mol / L, and other specific steps are the same as Example 1. Double-sided ZnO nanowire arrays with an average diameter of 20 nm were obtained.
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