▎ 摘　　要

NOVELTY - Preparing bismuth oxychloride/graphene three-dimensional aerogel involves adding 1g of graphite powder to 23mL concentrated sulfuric acid in ice water bath, stirring for 10 minutes, adding with 3g of potassium permanganate for 1 hour, solution is dark green, and then stirring at 30 degrees C for 1 hour, adding 46mL of deionized water, and keep stirring at 96 degrees C for 30 minutes, adding 10mL of hydrogen peroxide and 140mL of deionized water to terminate reaction, taking out, cooling to room temperature, centrifuging at 4000 revolution per minute for 10 minutes, using washing 5 wt.% hydrochloric acid solution and ethanol 3-4 times, each time after thorough washing, necessary to centrifuge at 4000 revolution per minute for 5 minutes and then discard waste liquid, and finally drying at 60 degrees C to obtain graphene oxide. USE - Method for preparing bismuth oxychloride/graphene three-dimensional aerogel for synergistic adsorption-photocatalytic degradation of oxytetracycline waste water. ADVANTAGE - The method enables to prepare bismuth oxychloride/graphene three-dimensional aerogel that has excellent absorption performance. DETAILED DESCRIPTION - Preparing bismuth oxychloride/graphene three-dimensional aerogel for synergistic adsorption-photocatalytic degradation of oxytetracycline wastewater, involves adding 1g of graphite powder to 23mL concentrated sulfuric acid in ice water bath, stirring for 10 minutes, adding with 3g of potassium permanganate for 1 hour, solution is dark green, and then stirring at 30 degrees C for 1 hour, adding 46mL of deionized water, and keep stirring at 96 degrees C for 30 minutes, adding 10mL of hydrogen peroxide and 140mL of deionized water to terminate reaction, taking out, cooling to room temperature, centrifuging at 4000 revolution per minute for 10 minutes, using washing 5 wt.% hydrochloric acid solution and ethanol 3-4 times, each time after thorough washing, necessary to centrifuge at 4000 revolution per minute for 5 minutes and then discard waste liquid, and finally drying at 60 degrees C to obtain graphene oxide, dissolving 4 mmol of potassium chloride in 50mL of deionized water, adding 2mmol of Bi(NO3)3 5H2O under magnetic stirring, and continue stirring for 30 minutes, then transfering solution into polytetrafluoroethylene reactor and placing it in 180 degrees C, reaction carry out in oven at constant temperature for 12 hours, reaction is complete, naturally cooling to room temperature, centrifuging, and washing successively with water and ethanol to obtain BiOCl photocatalyst The 0.018-0.09g of BiOCl photocatalyst is added to ultrapure water, ultrasonic dispersion to obtain dispersion A. The 0.09g of graphene oxide is added to 30mL of water and ultrasonically dispersed for 2 hours to obtain dispersion B, and then dispersion A and dispersion B are mixed, ultrasonication is continued for 1 hour, 0.2mL of ammonia water is added, 0.1mL of hydrazine hydrate is added, stirred, transferred to reaction kettle and reacted at 180 degrees C for 4 hours, and naturally cooled to room temperature to obtain bismuth oxychloride graphene three-dimensional hydrogel, which is immersed in water and ethanol for 8 hours, preservation at 20 degrees C for 48 hours, and finally vacuum freeze-dry for 48 hours to obtain bismuth oxychloride/graphene three-dimensional aerogel of synergistic adsorption-photocatalytic degradation of oxytetracycline wastewater.