Preparation method and application of silicon-nitrogen co-doped graphene quantum dots
A technology of graphene quantum dots and co-doping, applied in graphene, botanical equipment and methods, applications, etc., can solve the problems of environmental pollution, resin is not easy to degrade, etc., achieve good water solubility, simple and stable synthesis method good sex effect
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Embodiment 1
[0035] The present embodiment provides a kind of synthesis of silicon-nitrogen co-doped graphene quantum dots (N, Si-GQDs), which mainly includes the following steps:
[0036] Weigh 0.1g of G carbon powder, then add 600μL ethylenediamine (m 碳粉 :m 乙二胺 =5:27) and 5mL deionized water were mixed in a 25mL hydrothermal reaction kettle, and reacted in a blast drying oven at 160°C for 4h. After the reaction was completed, it was filtered with a 0.22μm water-based filter, and the yellow liquid was retained, and stored at 4°C for use.
Embodiment 2
[0038] The present embodiment provides a kind of synthesis of silicon-nitrogen co-doped graphene quantum dots (N, Si-GQDs), which mainly includes the following steps:
[0039] Weigh 0.1g of G carbon powder, then add 1000μL ethylenediamine (m 碳粉 :m 乙二胺 =5:45) and 5mL deionized water were mixed in a 25mL hydrothermal reaction kettle, and reacted in a blast drying oven at 160°C for 4h. After the reaction was completed, it was filtered with a 0.22μm water-based filter, and the yellow liquid was retained, and stored at 4°C for use.
Embodiment 3
[0041] The present embodiment provides a kind of synthesis of silicon-nitrogen co-doped graphene quantum dots (N, Si-GQDs), which mainly includes the following steps:
[0042] Weigh 0.1g of G carbon powder, then add 600μL ethylenediamine (m 碳粉 :m 乙二胺 =5:27) and 5mL deionized water were mixed in a 25mL hydrothermal reaction kettle, and reacted in a blast drying oven at 160°C for 16h. After the reaction was completed, it was filtered with a 0.22μm water-based filter, and the yellow liquid was retained, and stored at 4°C for use.
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