| abstract |
The invention relates to a preparation method of high-performance composite gel in ionic liquid, belongs to the field of new material science, and is applied to the fields of environmental functional materials, structural materials, catalysis, energy sources and the like. The preparation method of the high-performance composite hydrogel in the ionic liquid is provided, and comprises the following steps: (1) heating an ionic liquid to a defined temperature T 1 Then, adding cellulose with the mass fraction of 1-6 wt% at a constant temperature, stirring and ultrasonically dispersing to obtain a cellulose ionic liquid solution with a certain concentration; (2) reducing the temperature of the cellulose ionic liquid to a prescribed temperature T 2 Then adding nano zero-valent iron at a constant temperature, stirring and ultrasonically dispersing to obtain a mixed solution of nano zero-valent iron and cellulose ionic liquid with a certain concentration; (3) and (3) defoaming the obtained final mixed solution, regenerating by using a coagulating bath, and washing to obtain the nano zero-valent iron/cellulose composite hydrogel. |