Natural degradable macromolecular haze-inhibiting spraying agent and preparation method and application thereof

The invention discloses a natural degradable macromolecular haze-inhibiting spraying agent and a preparation method and application thereof and belongs to the technical field of air pollution control.The preparation method comprises respectively weighing 4 to 8 parts of a certain concentration of a sodium hydroxide solution, 0.1 to 2 parts of a humic acid solution, 2 to 7 parts of a lignin solution, 0.12 to 0.4 parts of a potassium persulfate solution, 0.03 to 0.1 parts of a N, N-methylene bisacrylamide solution, 0.01 to 0.08 parts of a nano-silver solution and 8 to 13 parts of acrylic acid,adding a sodium hydroxide solution into acrylic acid in an ice water bath along with stirring, putting the reaction solution in the ice water bath to obtain a reaction solution, adding the humic acidsolution, the lignin solution, the potassium persulfate solution, the N, N-methylene bisacrylamide solution, the nano-silver solution and the reaction solution into a reactor, carrying out uniform stirring, adjusting pH, and af