▎ 摘　　要

NOVELTY - Preparing bamboo nano cellulose/reduction-oxidation graphene composite carbon gas gel comprises e.g. cutting the bamboo into small blocks, washing and drying, crushing by the crushing machine and sieving to prepare the bamboo powder, taking a certain amount of bamboo powder by filter paper, placing in Soxhlet extractor, using mixed solution of toluene and ethanol repeatedly washing a period of time lower than certain temperature, drying sample, adding sample obtained in the step (1) to a pH = 5 sodium chlorite solution with concentration of 1.4% in reaction, repeating a plurality of times. USE - The gel is useful for absorbing oil or organic solvent contamination. The method is useful for preparing bamboo nano cellulose/reduction-oxidation graphene composite carbon gas gel (claimed). ADVANTAGE - The material: has high adsorption capacity for oil and organic solvent contamination. The method: adopts the cheap and reproducible bamboo as raw material; and is suitable for production in a large scale. DETAILED DESCRIPTION - Preparing bamboo nano cellulose/reduction-oxidation graphene composite carbon gas gel comprises (1) cutting the bamboo into small blocks, washing and drying, crushing by the crushing machine and sieving to prepare the bamboo powder, taking a certain amount of bamboo powder by filter paper, placing in the Soxhlet extractor, using mixed solution of toluene and ethanol repeatedly washing a period of time lower than certain temperature, drying the sample, (2) adding sample obtained in the step (1) to a pH = 5 sodium chlorite solution with concentration of 1.4% in the reaction, repeating a plurality of times, until the sample becomes white, adding the sample obtained by adding potassium hydroxide solution in water bath heating reaction for a period of time, performing reaction with 1% hydrochloric acid solution, washing to neutral, drying, (3) dispersing the sample obtained in the step (2) in the aqueous solution, adding a certain amount of sodium bromide, tetramethylpiperidine (TEMPO), mixing and stirring uniformly, dropping a certain amount of hypochlorous acid solution, adjusting pH of the solution with sodium hydroxide or hydrochloric acid solution, maintaining pH=10, carrying out water bath reaction, finishing the reaction, adjusting the pH of the solution to neutrality, washing and drying, (4) dispersing the sample obtained in the step (3) into the aqueous solution by the stirrer stirring for a period of time to form the uniform sample solution, using the ultrasonic cell crushing instrument for a period of time, centrifuging at high speed, removing un-reacted solid, obtaining uniform and transparent nanometer bamboo cellulose solution, (5) taking the workpiece in the step (4) the obtained bamboo nano cellulose solution adding amount of graphene oxide and ethylenediamine solution, adding the mixed solution in a high temperature water bath reaction after a period of time, obtaining bamboo nano cellulose/graphene oxide composite hydrogel, lowering the water bath temperature and proper carrier, stirring and washing for a period of time, repeating many times to remove quadrol of residual, (6) freezing and drying the obtained material, placing in a tubular furnace, raising the temperature to the heating temperature, lowering the high-temperature nitrogen atmosphere heating carbide for a period of time to obtain nano cellulose/reduction-oxidation graphene composite carbon gas gel.