Titanium dioxide-platinum-tricobalt tetraoxide tri-element composite photocatalytic material and preparation method thereof
A three-cobalt tetroxide ternary, composite photocatalysis technology, applied in metal/metal oxide/metal hydroxide catalysts, chemical instruments and methods, physical/chemical process catalysts, etc., can solve problems such as reducing photogenerated carrier recombination, etc. To solve the effect of easy recombination of electron holes
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Embodiment 1
[0034] 1) Quickly add 4.5mL of hydrofluoric acid into 25mL of tetrabutyl titanate, stir the mixed solution under the action of a magnetic stirrer for 1 hour until the solution is evenly mixed, and then transfer the mixed solution to a 100mL polytetrafluoroethylene liner In the hydrothermal reaction kettle, the hydrothermal reaction was carried out at 180°C for 24 hours, and the obtained precipitate was washed repeatedly with distilled water and ethanol, then dried in an oven at 80°C for 16 hours, and ground, and placed in a muffle furnace at 450 ℃ for 2 hours to obtain titanium dioxide nanosheets.
[0035] 2) Preparation of titanium dioxide nanosheets with platinum nanoparticles deposited on the surface: 50 mg of the titanium dioxide powder obtained above was added to 80 mL of a mixed solution of water and methanol (methanol: water = 1:3), and ultrasonically dispersed for 15 minutes to uniformly disperse the titanium dioxide in the In the above mixed solution, accurately measu...
Embodiment 2
[0047] 1) Quickly add 3mL of hydrofluoric acid into 25mL of tetrabutyl titanate, stir the mixed solution under the action of a magnetic stirrer for 1 hour until the solution is evenly mixed, then transfer the mixed solution to a 100mL Teflon-lined In a hydrothermal reaction kettle, conduct a hydrothermal reaction at 170°C for 24 hours, and the obtained precipitate is washed repeatedly with distilled water and ethanol, then dried in an oven at 80°C for 16 hours, and ground, and placed in a muffle furnace at 450°C After calcining for 2 hours, titanium dioxide nanosheets can be obtained.
[0048] 2) Preparation of titanium dioxide nanosheets with platinum nanoparticles deposited on the surface: 50 mg of the titanium dioxide powder obtained above was added to 80 mL of a mixed solution of water and methanol (methanol: water = 1:1), and ultrasonically dispersed for 15 minutes to uniformly disperse the titanium dioxide in the In the above mixed solution, accurately measure 0.065mL ch...
Embodiment 3
[0053] 1) Quickly add 9mL of hydrofluoric acid into 25mL of tetrabutyl titanate, stir the mixed solution under the action of a magnetic stirrer for 1 hour until the solution is evenly mixed, and then transfer the mixed solution to a 100mL Teflon-lined In the hydrothermal reaction kettle, the hydrothermal reaction was carried out at 160°C for 36 hours, and the obtained precipitate was washed repeatedly with distilled water and ethanol, then dried in an oven at 80°C for 16 hours, and ground, and placed in a muffle furnace at 500°C After calcining for 3 hours, titanium dioxide nanosheets can be obtained.
[0054] 2) Preparation of titanium dioxide nanosheets with platinum nanoparticles deposited on the surface: 50 mg of the titanium dioxide powder obtained above was added to 80 mL of a mixed solution of water and methanol (methanol: water = 1:3), and ultrasonically dispersed for 15 minutes to uniformly disperse the titanium dioxide in the In the above-mentioned mixed solution, ac...
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