Micro-oxidized graphene and preparation method thereof
A graphene and fossil technology, applied in the field of micro-graphene oxide and its preparation, can solve problems such as unfavorable production and application, dangerous use process, long reaction time, etc., to overcome uncontrollable activation, high cost input, and lattice defects. less effect
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[0032] Example 1
[0033] Mix 10g of mechanically exfoliated graphene, 50g of potassium hydroxide, and 500g of water, stir and ultrasonic for 1 hour to obtain a uniform viscous dispersion; transfer the dispersion to a crucible and place it in a microwave oven for 15 minutes; repeatedly wash the microwaved product with water Remove potassium hydroxide with suction filtration until the filtrate is neutral and dry to obtain a solid; weigh 5g of the above solid, 15g potassium permanganate, 250g water, and react in the reactor for 2 hours, and set the reaction temperature to 150°C After the reaction, the product is taken out, washed repeatedly with water and filtered to remove excess potassium permanganate, and dried to obtain a micro-oxidized graphene product.
Example Embodiment
[0034] Example 2
[0035] Mix 10g of mechanically exfoliated graphene, 40g of sodium hydroxide, and 200g of water, stir and ultrasonic for 1.5 hours to obtain a uniform viscous dispersion; transfer the dispersion to a crucible and place it in a microwave oven for 15 minutes; repeatedly wash the microwaved product with water Remove the sodium hydroxide with suction filtration until the filtrate is neutral and dry to obtain a solid; weigh 5g of the above solid, 15g potassium permanganate, 250g water, and react in the reactor for 2 hours, and set the reaction temperature to 150°C After the reaction, the product is taken out, washed repeatedly with water and filtered to remove excess potassium permanganate, and dried to obtain a micro-oxidized graphene product.
Example Embodiment
[0036] Example 3
[0037] Mix 10g of mechanically exfoliated graphene, 40g of potassium hydroxide, and 500g of water, stir and ultrasonic for 1 hour to obtain a uniform viscous dispersion; transfer the dispersion to a crucible and place it in a microwave oven for 15 minutes; wash the microwaved product repeatedly with water Remove potassium hydroxide by suction and filtration until the filtrate is neutral and dry to obtain a solid; weigh 5g of the above solid, 15g potassium chlorate, and 250g water, and react in the reactor for 2 hours, and set the reaction temperature to 150°C; after the reaction The product is taken out, washed repeatedly with water and filtered by suction to remove excess potassium chlorate, and dried to obtain a micrographene oxide product.
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