Preparation method of carbon airgel adsorbent for oil pollution treatment and prepared carbon airgel adsorbent
A carbon aerogel and carbon hydrogel technology, which is applied in adsorption water/sewage treatment, separation methods, other chemical processes, etc., can solve the problems of high requirements for synthesis conditions, complex synthesis methods, and expensive raw materials, and achieves low cost. , high specific surface area, no effect of environmental pollution
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Embodiment 1
[0025] Cut the melon raw material into a suitable shape and put it in a polytetrafluoroethylene hydrothermal reactor. Place it in a homogeneous reactor for 12 hours at 180℃ for hydrothermal reaction. After the reaction is complete, it is slowly cooled to room temperature. Washing and ethanol washing; get carbohydrate gel. The carbon hydrogel wrapped in tin foil was quickly frozen in liquid nitrogen at 77K, and dried in a vacuum drying oven at a constant temperature of 25°C for 12 hours to finally obtain a black sponge-like melon carbon aerogel material.
Embodiment 2
[0027] Cut the watermelon flesh raw material into a suitable shape and put it in a polytetrafluoroethylene hydrothermal reaction kettle, hydrothermally react at 180°C for 12 hours, slowly cool to room temperature after the reaction is complete, and finally undergo repeated water washing and ethanol washing; tin foil paper The wrapped carbon hydrogel was quickly frozen in liquid nitrogen at 77K, and dried in a vacuum drying oven at a constant temperature of 25°C for 12 hours to finally obtain a black sponge-like watermelon flesh carbon aerogel material.
Embodiment 3
[0029] Cut the raw material of loofah into a suitable shape and put it in a polytetrafluoroethylene hydrothermal reactor. Place it in a homogeneous reactor for 12 hours at 180℃ for hydrothermal reaction. After the reaction is completed, slowly cool to room temperature. Finally, it is repeated Washing with water and ethanol; after being rapidly frozen under liquid nitrogen at 77K, dried in a vacuum drying oven at a constant temperature of 25°C for 12 hours to finally obtain a black sponge-like loofah carbon aerogel material.
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