| abstract |
The invention belongs to the technical field of material preparation, and particularly relates to a preparation method of a three-dimensional porous material. The preparation method comprises the following steps: (1) uniformly mixing the precursor, PAN, PVP and DMF to obtain a mixed solution A; the precursor is one or a combination of a plurality of silicon sources, copper sources, titanium sources, nickel sources and zinc sources; (2) uniformly filling the mixed solution A into a mould, then immersing the mould into an alkaline solution, keeping for 0.5h to obtain a porous film, and then calcining to obtain the three-dimensional porous material. The preparation method successfully constructs a series of three-dimensional porous materials and realizes fine regulation and control of the pore structure. The preparation method has universality, simple process, short flow and low equipment dependence, and is suitable for industrial large-scale production. |