G-C3N4/CuO photocatalytic film material grown on flexible copper net in situ and preparation method thereof

The invention discloses a g-C3N4/CuO photocatalytic film material grown on a flexible copper net in situ and a preparation method thereof. The preparation method comprises the following steps: dissolving NaOH in deionized water to obtain a solution A; adding NaCl into the solution A, and carrying out stirring to obtain a solution B; adding PEG into the solution B to obtain a solution C; with graphite as a cathode, the copper net as an anode and the solution C as electrolyte, subjecting the anode to oxidation treatment, and then carrying out repeated washing with deionized water so as to obtain a product D with brick-red substances attached to the copper net; and grinding and mixing urea and ammonium persulfate to obtain powder E, placing the product D on the powder E, and carrying out annealing treatment to obtain the g-C3N4/CuO photocatalytic film material grown on the flexible copper net in situ. The preparation method has the advantages of low requirement on preparation equipment, small external influence,