Preparation method and application of titanium carbide-MXene doped sodium alginate phosphorus removal adsorption aerogel bead

The invention discloses a preparation method and application of titanium carbide-MXene doped sodium alginate phosphorus removal and adsorption aerogel beads, and relates to the field of water pollution treatment, in particular to the preparation method and application of the phosphorus removal and adsorption aerogel beads. The invention aims to solve the problems of low phosphorus selectivity, poor hydrophilicity, lower adsorption capacity, difficulty in recovery due to small particle size and low mechanical strength of the existing phosphorus adsorbent. The method comprises the following steps: 1, preparing a few-layer or single-layer Ti3C2-MXene powder dispersion liquid; 2, adding sodium alginate powder; 3, dropwise adding the mixed solution into a cross-linking solution for cross-linking; 4, washing with ultrapure water; and 5, freeze drying. The titanium carbide-MXene doped sodium alginate phosphorus removal adsorption aerogel bead is used as a phosphorus adsorbent. According to the invention, the titaniu