Monatomic catalysis algae removal method

The embodiment of the invention provides a monatomic catalytic algae removal method, which is applied to the technical field of photocatalytic algae removal and comprises the following steps: acquiring liquid to be subjected to algae removal; the liquid to be subjected to algae removal contains at least one of algae and algae metabolites; adding a monatomic copper-doped carbon nitride piezoelectric photocatalyst into the liquid to be subjected to algae removal to obtain a first mixed solution; carrying out auxiliary algae removal treatment on the first mixed solution so as to remove algae from the first mixed solution by using a monatomic copper-doped carbon nitride piezoelectric photocatalyst; wherein the auxiliary algae removal treatment comprises at least one of mechanical disturbance and visible light irradiation. According to the embodiment of the invention, the separation and transmission of photon-generated carriers are improved, the track matching degree is improved, and the energy required by electro