Preparation method for black phosphorus quantum dot-graphene nanosheet three dimensional composite
A technology of graphene nanosheets and composite materials, which is applied in the preparation of three-dimensional composite materials of black phosphorene quantum dots and graphene nanosheets, and in the field of composite material preparation, can solve problems such as affecting electrical properties and reducing electron mobility, and achieve large The effect of applying the foreground
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[0016] Example 1
[0017] (1) First, the 0.001 mg / mL black phosphorene quantum dot ethanol solution prepared by the shearing pulverization method is added to the 1 mg / mL graphene oxide ethanol solution, and the black phosphorene quantum dots are adsorbed to On the surface of graphene oxide, the stirring time is 1 min.
[0018] (2) Then take 10 mL of black phosphorene quantum dots and graphene oxide ethanol solution into a 25 mL polytetrafluoroethylene-lined autoclave, and conduct a solvothermal reaction at 100°C. After the reaction, a massive colloidal composite material filled with ethanol is obtained.
[0019] (3) After taking out the massive colloid from the reaction kettle, immerse it in deionized water for 1 hour, so that the ethanol and water inside the massive colloidal material exchange with each other. Take out the massive colloid filled with water and freeze-dry for 6 hours to obtain a porous black phosphorene quantum dot-graphene nanosheet three-dimensional composite mat...
Example Embodiment
[0021] Example 2
[0022] (1) First, the 0.01 mg / mL black phosphorene quantum dot ethanol solution prepared by the shearing and crushing method is added to the 3 mg / mL graphene oxide ethanol solution, and the black phosphorene quantum dots are adsorbed to On the surface of graphene oxide, the stirring time is 30 min.
[0023] (2) Then 50 mL of black phosphorene quantum dots and graphene oxide ethanol solution were poured into a polytetrafluoroethylene lined autoclave with a volume of 100 mL, and the solvothermal reaction was carried out at 150°C. After the reaction, a massive colloidal composite material filled with ethanol is obtained.
[0024] (3) After taking out the block colloid from the reaction kettle, immerse it in deionized water for 12 hours, so that the ethanol and water inside the block colloid material exchange with each other. Take out the massive colloid filled with water and freeze-dry for 36 hours to obtain a porous black phosphorene quantum dot-graphene nanosheet ...
Example Embodiment
[0028] Example 3
[0029] (1) First, the 0.01 mg / mL black phosphorene quantum dot ethanol solution prepared by the shearing and crushing method is added to the 5 mg / mL graphene oxide ethanol solution, and the black phosphorene quantum dots are adsorbed to On the surface of graphene oxide, the stirring time is 60 min.
[0030] (2) Then 80 mL of black phosphorene quantum dots and graphene oxide ethanol solution were poured into a polytetrafluoroethylene lined autoclave with a volume of 150 mL, and the solvothermal reaction was carried out at 180°C. After the reaction, a massive colloidal composite material filled with ethanol is obtained.
[0031] (3) After taking out the massive colloid from the reaction kettle, immerse it in deionized water for 48 hours, so that the ethanol and water inside the massive colloidal material exchange with each other. Take out the massive colloid filled with water and freeze-dry it for 48 hours to obtain a porous black phosphorene quantum dot-graphene n...
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