Preparation and application of regenerated bacterial cellulose composite aerogel adsorption material

The invention discloses a preparation method of a regenerated bacterial cellulose composite aerogel adsorption material. According to the method, in a sodium hydroxide and urea green solvent, by taking bacterial cellulose/polyvinyl alcohol as a framework material, the regenerated bacterial cellulose/polyvinyl alcohol composite aerogel adsorption material is prepared by a freezing-thawing cycle method through composite filler graphene oxide and attapulgite. The adsorption material is low in preparation cost, has relatively good acid-base stability and thermal stability, has relatively good adsorption capacity on Congo red and methylene blue dyes and Cu and Pb heavy metal ions, still has relatively high regeneration rate after being repeatedly used for multiple times, and is a novel adsorption material capable of being applied to industrial wastewater purification treatment. 本发明公开了一种再生细菌纤维素复合气凝胶吸附材料的制备方法，是在氢氧化钠、尿素绿色溶剂中，以细菌纤维素/聚乙烯醇为骨架材料，通过复合填料氧化石墨烯和凹凸棒土，采用冻融循环的方法制备再生细菌纤维素复合气凝胶吸附材料。该吸附材料制备成本低，具有较好的酸碱稳定性和热