TiO2 nanosheet and preparation method and application thereof
A nanosheet and hydrothermal reaction technology, applied in the field of nanomaterials, can solve the problems of increasing catalyst cost and achieve the effect of good application prospects
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Embodiment 1
[0032] Example 1: TiO 2 Preparation of -12 nanosheets and their activity in photocatalytic hydrogen production
[0033] Add 25ml of tetra-n-butyl titanate into a 50ml hydrothermal reaction kettle and add a magnet to stir evenly, pipette 2ml of hydrofluoric acid and slowly add to the above solution, stir evenly at room temperature for 30min, and sonicate for 30min. Tighten the above-mentioned hydrothermal kettle, put it into a hydrothermal oven, and heat it to 180°C at a heating rate of 5°C / min and maintain it for 24h. After the temperature dropped back to room temperature, the product was washed by centrifugation, first washed once with ultrapure water to remove most of the useless liquid, then washed 5 times with ethanol to remove organic matter adsorbed on the product, and finally washed with ultrapure water to remove residual of ethanol. Then the above product was dried in an oven at 70°C and fully ground, and the fully ground sample was uniformly dispersed in 800ml of Na...
Embodiment 2
[0037] Example 2: TiO 2 Preparation of -40 nanosheets and their activity in photocatalytic hydrogen production
[0038] Add 25ml of tetra-n-butyl titanate into a 50ml hydrothermal reaction kettle and add a magnet to stir evenly, pipette 2ml of hydrofluoric acid and slowly add to the above solution, stir evenly at room temperature for 30min, and sonicate for 30min. Tighten the above-mentioned hydrothermal kettle, put it into a hydrothermal oven, and heat it to 200°C at a heating rate of 5°C / min and maintain it for 24h. After the temperature dropped back to room temperature, the product was washed by centrifugation, first washed once with ultrapure water to remove most of the useless liquid, then washed 5 times with ethanol to remove organic matter adsorbed on the product, and finally washed with ultrapure water to remove residual of ethanol. Then the above product was dried in an oven at 70°C and fully ground, and the fully ground sample was uniformly dispersed in 800ml of Na...
Embodiment 3
[0042] Example 3: TiO 2 Preparation of -80 nanosheets and their activity in photocatalytic hydrogen production
[0043] Add 25ml of tetra-n-butyl titanate into a 50ml hydrothermal reaction kettle and add a magnet to stir evenly, pipette 4ml of hydrofluoric acid and slowly add to the above solution, stir evenly at room temperature for 30min, and ultrasonicate for 30min. Tighten the above-mentioned hydrothermal kettle, put it into a hydrothermal oven, and heat it to 200°C at a heating rate of 5°C / min and maintain it for 24h. After the temperature dropped back to room temperature, the product was washed by centrifugation, first washed once with ultrapure water to remove most of the useless liquid, then washed 5 times with ethanol to remove organic matter adsorbed on the product, and finally washed with ultrapure water to remove residual of ethanol. Then the above product was dried in an oven at 70°C and fully ground, and the fully ground sample was uniformly dispersed in 800ml ...
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