A kind of preparation method and application of graphene oxide
A graphene and pre-oxidation technology, applied in chemical instruments and methods, anaerobic digestion treatment, carbon compounds, etc., can solve the problems of complex graphene oxide process, complex temperature control, and high cost of graphene oxide, and prevent bacterial cells. drain, prolong response time, enhance the effect of bioaugmentation
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[0018] The concrete process that the embodiment of the present invention prepares graphene oxide is as follows:
[0019] (1) Pre-oxidation: get 5 grams of high-grade pure graphite powder and add it to a beaker with 500 milliliters of concentrated sulfuric acid with a mass concentration of 98%, and mechanically stir for 24 hours to obtain a mixed solution A;
[0020] (2) Oxidation: Move the beaker containing the mixed solution A to an ice-water bath below 4°C, then slowly add 25 grams of potassium permanganate (KMnO4) into the beaker, stir mechanically for 24 hours, remove the ice-water bath, and place at room temperature After slowly adding 500 ml of deionized water, stir mechanically for 24 hours to obtain mixed solution B; then slowly add saturated hydrogen peroxide solution into mixed solution B until the color of the mixed solution turns golden yellow and there is no color change within 1 minute Stir for 5h;
[0021] (3) Washing and precipitation: Fill the beaker with wat...
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