Preparation method of graphene nanobelt-loaded semi-conductive 3D photocatalytic material
A technology of graphene nanobelts and photocatalytic materials, which is applied in the field of preparation of three-dimensional photocatalytic materials, to achieve the effect of simple preparation process, improved activity and photocatalytic performance
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Embodiment 1
[0027] Graphene nanoribbon loaded semiconductor material GNR-TiO 2 / C 3 N 4 , containing C, H, Ti, O and H elements.
[0028] The above-mentioned graphene nanobelt loaded semiconductor material specifically includes the following steps:
[0029] (1) Preparation of graphene nanobelts
[0030] Graphene nanoribbons (GNR) were prepared by the following method: weigh 1.5 g of multi-walled carbon nanotubes, add 150 mL of concentrated sulfuric acid, and stir for 1 h. Under ice-bath conditions, slowly add 9 g of potassium permanganate, and stir for 2 h at 25° C. Then in an oil bath at 75 °C for 80 min. Under ice bath conditions, add 25mL of distilled water, then pour the above solution into a large beaker filled with 300-400mL of distilled water, and then add 5mL of hydrogen peroxide. The product GNR was obtained by centrifugation.
[0031] (2) Preparation of graphene nanobelt-supported semiconductor materials carbon nitride and titanium dioxide
[0032] Weigh 0.3g of titanium d...
Embodiment 2
[0044] A three-dimensional photocatalytic material GNR-TiO supported by graphene nanoribbons 2 / Bi 2 WO 6 . Contains C, Ti, O, H, Bi, W elements.
[0045] (1) Preparation of graphene nanobelts
[0046] Graphene nanoribbons (GNR) were prepared by the following method: weigh 1.5 g of multi-walled carbon nanotubes, add 150 mL of concentrated sulfuric acid, and stir for 1 h. Under ice-bath conditions, slowly add 9 g of potassium permanganate, and stir for 2 h at 25° C. Then in an oil bath at 75 °C for 80 min. Under ice bath conditions, add 25mL of distilled water, then pour the above solution into a large beaker filled with 300-400mL of distilled water, and then add 5mL of hydrogen peroxide. The product GNR was obtained by centrifugation.
[0047] (2) Preparation of graphene nanobelt-supported semiconductor titanium dioxide and bismuth tungstate.
[0048] Weigh 0.3g of titanium dioxide precursor, add 24mL of hydrogen peroxide solution and 5mL of ammonia water, and stir unt...
Embodiment 3
[0051] A three-dimensional photocatalytic material GNR-TiO supported by graphene nanoribbons 2 / C 3 N 4 . Contains C, N, Ti, O, H elements.
[0052] (1) Preparation of graphene nanobelts
[0053]Graphene nanoribbons (GNR) were prepared by the following method: weigh 1.5 g of multi-walled carbon nanotubes, add 150 mL of concentrated sulfuric acid, and stir for 1 h. Under ice-bath conditions, slowly add 9 g of potassium permanganate, and stir for 2 h at 25° C. Then in an oil bath at 75 °C for 80 min. Under ice bath conditions, add 25mL of distilled water, then pour the above solution into a large beaker filled with 300-400mL of distilled water, and then add 5mL of hydrogen peroxide. The product GNR was obtained by centrifugation.
[0054] (2) Preparation of graphene nanobelt-supported semiconductor titanium dioxide and carbon nitride
[0055] Weigh 0.3g of titanium dioxide precursor, add 24mL of hydrogen peroxide solution and 5mL of ammonia water, and stir until the solu...
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