| abstract |
The invention relates to the technical field of sewage treatment, in particular to a preparation method of a bacterial cellulose LDH composite adsorption material, comprising a synthesis step and a combination step. In the synthesis step, the aluminum salt solution and the magnesium salt solution were added dropwise to the bacterial cellulose dispersion, the layered double metal hydroxide was synthesized in situ on the surface of the bacterial cellulose using a coprecipitant, and the mixture was made into a mixed solution. In the combining step, a catalyst and a combining reagent are added to the mixed solution, and a product is obtained after a catalytic reaction. The bacterial cellulose/LDH composite adsorption material prepared in this scheme has electrostatic attraction, ion exchange, chelation, physical adsorption, etc. to heavy metal ions in polluted water, which makes up for the shortcomings of the single adsorption method of bacterial cellulose and improves the The adsorption effect is improved, and the technical problem that the layered double metal hydroxide material is unstable in an acidic water environment can be solved. |