Preparation, application and regeneration methods of hydroxyl magnesium@oxidized graphene supported carbon fiber cloth
A technology of carbon fiber cloth and graphene, which is applied in the field of preparation of porous adsorption cloth, can solve the problems of limiting the application of GO nanomaterials, limiting the application of adsorption field, and the decrease of specific surface area, and achieves easy large-scale preparation, low synthesis cost, and reuse good effect
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Embodiment 1
[0050] Preparation of carbon fiber cloth supported by hydroxymagnesium@graphene oxide:
[0051] (1) Add 1g of natural graphite powder to 5mL of concentrated sulfuric acid, 1g of potassium persulfate and 1g of phosphorus pentoxide, and reflux at 50°C for 4 hours;
[0052](2) Place the above solution in an ice-water bath, add 300 mL of deionized water to it, stir for 5 hours, then separate the solid from the liquid by sedimentation, and dry the obtained solid at 30°C;
[0053] (3) the above-mentioned pretreated graphite powder is added in the 50mL concentrated sulfuric acid, and placed in an ice-water bath;
[0054] (4) Add 5 g of potassium permanganate to it, place it in a water bath at 20° C. and stir for 1 h; then add 100 mL of deionized water therein, and stir for 1 h;
[0055] (5) Add 500mL of deionized water and 10mL of hydrogen peroxide (30%) into the solution, stir well and carry out solid-liquid separation by centrifugation;
[0056] (6) Rinse the solid obtained above...
Embodiment 2
[0068] Preparation of carbon fiber cloth supported by hydroxymagnesium@graphene oxide:
[0069] (1) Add 2g of natural graphite powder to 10mL of concentrated sulfuric acid, 2g of potassium persulfate and 2g of phosphorus pentoxide, and reflux at 60°C for 5 hours;
[0070] (2) Place the above solution in an ice-water bath, add 400 mL of deionized water to it, stir for 6 hours, then separate the solid from the liquid by centrifugation, and dry the obtained solid at 40°C;
[0071] (3) the above-mentioned pretreated graphite powder is added in the 70mL concentrated sulfuric acid, and placed in an ice-water bath;
[0072] (4) Add 10 g of potassium permanganate to it, place it in a water bath at 30° C. and stir for 3 h; then add 200 mL of deionized water to it, and stir for 2 h;
[0073] (5) Add 600mL of deionized water and 20mL of hydrogen peroxide (30%) into the solution, stir well and carry out solid-liquid separation by centrifugation;
[0074] (6) Rinse the solid obtained abo...
Embodiment 3
[0086] Preparation of carbon fiber cloth supported by hydroxymagnesium@graphene oxide:
[0087] (1) Add 3g of natural graphite powder to 15mL of concentrated sulfuric acid, 2.5g of potassium persulfate and 2.5g of phosphorus pentoxide, and reflux at 80°C for 5 hours;
[0088] (2) Place the above solution in an ice-water bath, add 400 mL of deionized water to it, stir for 15 h, then use membrane filtration to separate solid from liquid, and dry the obtained solid at 60°C;
[0089] (3) the above-mentioned pretreated graphite powder is added in 110mL of concentrated sulfuric acid, and placed in an ice-water bath;
[0090] (4) 15g of potassium permanganate was added thereto, placed in a 40°C water bath and stirred for 5h; then 250mL of deionized water was added thereto, and stirred for 3h;
[0091] (5) Add 700mL deionized water and 30mL hydrogen peroxide (30%) to the solution, and after stirring evenly, carry out solid-liquid separation by centrifugation;
[0092] (6) Rinse the ...
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