Simple and environment-friendly graphene paper preparation method
A graphene paper and environmental protection technology, applied in the field of simple and environmentally friendly graphene paper preparation, can solve the problems of high cost, high energy consumption, long preparation time, etc., and achieve the effects of improved performance, less environmental pollution, and low cost of raw materials
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Embodiment 1
[0030] Step 1: Add 100 mL of 98% concentrated sulfuric acid into a glass container and place it in an ice bath environment, start stirring until the temperature reaches 0°C, add 5 g of graphite powder and 15 g of potassium permanganate in turn, and continue stirring for 2 h;
[0031] Place the glass container in a water bath environment, heat to 15°C, and continue to stir for 2 hours;
[0032] Add 500 mL of deionized water, raise the temperature to 90°C, continue to stir for 30 minutes, add 50 mL of 10% hydrogen peroxide, and continue to stir until bubbles are generated to form a golden mixture;
[0033] Step 2, put the golden yellow mixture obtained in step 1 into a centrifuge tube, put it into a centrifuge, and perform the first centrifugation. After centrifugation, the centrifuge tube is divided into the first supernatant and the first sediment. Pour off the first supernatant, add 300 mL of 1% hydrochloric acid to the first precipitate, and stir for 5 minutes;
[0034] Car...
Embodiment 2
[0044] Step 1, add 150mL of 98% concentrated sulfuric acid into a glass container and place it in an ice bath environment, start stirring until the temperature is 10°C, add 5g of graphite powder and 40g of potassium permanganate in sequence, and continue stirring for 4h;
[0045] Place the glass container in a water bath environment, heat to 25°C, and continue to stir for 4h;
[0046] Add 1000 mL of deionized water, raise the temperature to 95°C, continue to stir for 60 minutes, add 150 mL of 30% hydrogen peroxide, and continue to stir until bubbles are generated to form a golden mixture;
[0047] Step 2, put the golden yellow mixture obtained in step 1 into a centrifuge tube, put it into a centrifuge, and perform the first centrifugation. After centrifugation, the centrifuge tube is divided into the first supernatant and the first sediment. Pour out the first supernatant, add 500 mL of 6% hydrochloric acid to the first precipitate, and stir for 30 minutes;
[0048] Carry out...
Embodiment 3
[0058] Step 1, add 125mL of 98% concentrated sulfuric acid into a glass container and place it in an ice bath environment, start stirring until the temperature is 8°C, add 5g of graphite powder and 25g of potassium permanganate in sequence, and continue stirring for 3h;
[0059] Place the glass container in a water bath environment, heat to 20°C, and continue to stir for 3h;
[0060] Add 700 mL of deionized water, raise the temperature to 90°C, continue to stir for 45 minutes, add 100 mL of 20% hydrogen peroxide, and continue to stir until bubbles are generated to form a golden mixture;
[0061] Step 2, put the golden yellow mixture obtained in step 1 into a centrifuge tube, put it into a centrifuge, and perform the first centrifugation. At this time, the centrifuge tube is divided into the first supernatant and the first sediment. Pour out the supernatant for the first time, add 400 mL of 3% hydrochloric acid to the first precipitate, stir for 20 min,
[0062] Carry out the ...
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