Two-dimensional titanium dioxide nanosheet catalytic material and preparation method thereof
A photocatalytic material, titanium dioxide technology, applied in the field of photocatalysis, can solve the problems of low catalytic activity and low stability, achieve environmental friendliness, simple and mild preparation process, and improve the photocatalytic hydrogen production performance
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Embodiment 1
[0035] A preparation method of a two-dimensional titanium dioxide nanosheet photocatalytic material:
[0036] 1) 100 mg of graphene oxide was added to 200 mL of absolute ethanol, the control power was 400 W, and the frequency was 32 kHz for 30 minutes of ultrasonic treatment, so that the graphene oxide was evenly dispersed in the absolute ethanol solution to obtain a graphene dispersion solution;
[0037] 2) Add 2.47mmol of tetrabutyl titanate to the graphene dispersion solution in step 1), and stir for 15 hours at a controlled temperature of 20°C and a rotation speed of 600r / min to obtain a mixed solution. The purpose is to use the template method Make tetrabutyl titanate evenly adsorbed on the graphene oxide template;
[0038] 3) Centrifuge the mixed solution obtained in step 2) at a controlled speed of 10000r / min for 15min, wash the obtained precipitate with absolute ethanol until there is no tetrabutyl titanate in the effluent, and then centrifuge again at a controlled spe...
Embodiment 2
[0044] A preparation method of a two-dimensional titanium dioxide nanosheet photocatalytic material:
[0045] 1) Add 100 mg of graphene oxide to 200 mL of absolute ethanol, control the power to 400 W, and perform ultrasonic treatment at a frequency of 32 kHz for 30 minutes, so that the graphene oxide is evenly dispersed in the absolute ethanol solution to obtain a graphene dispersion solution;
[0046] 2) Add 2.47mmol of tetrabutyl titanate to the graphene dispersion solution in step 1), and stir for 15 hours at a controlled temperature of 20°C and a rotation speed of 600r / min to obtain a mixed solution. The purpose is to use the template method Make tetrabutyl titanate evenly adsorbed on the graphene oxide template;
[0047]3) Centrifuge the mixed solution obtained in step 2) at a controlled speed of 10000r / min for 15min, wash the obtained precipitate with absolute ethanol until there is no tetrabutyl titanate in the effluent, and then centrifuge again at a controlled speed o...
Embodiment 3
[0053] A preparation method of a two-dimensional titanium dioxide nanosheet photocatalytic material:
[0054] 1) 100 mg of graphene oxide was added to 200 mL of absolute ethanol, the control power was 400 W, and the frequency was 32 kHz for 30 minutes of ultrasonic treatment, so that the graphene oxide was evenly dispersed in the absolute ethanol solution to obtain a graphene dispersion solution;
[0055] 2) Add 2.47mmol of tetrabutyl titanate to the graphene dispersion solution in step 1), and stir for 15 hours at a controlled temperature of 20°C and a rotation speed of 600r / min to obtain a mixed solution. The purpose is to use the template method Make tetrabutyl titanate evenly adsorbed on the graphene oxide template;
[0056] 3) Centrifuge the mixed solution obtained in step 2) at a controlled speed of 10000r / min for 15min, wash the obtained precipitate with absolute ethanol until there is no tetrabutyl titanate in the effluent, and then centrifuge again at a controlled spe...
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