Preparation method of molecular imprinting Co-doped TiO2 having high catalytic degradation activity and selectivity under visible light

The invention discloses a preparation method of a molecular imprinting Co-doped TiO2 having high catalytic degradation activity and selectivity under visible light, and belongs to the technical field of preparation of photocatalysts. According to the method, tetrabutyl titanate is taken as a carbon source, cobalt nitrate is an element source, rhodamine B (RhB) serves as a target molecule, p-phenylenediamine is a functional monomer, ammonium persulfate is an initiator, and a solvent method is used to synthesize the molecular imprinting Co-doped TiO2. The synthesized molecular imprinting Co-doped TiO2 has a stronger capability of absorbing an organic pollutant, and has a higher catalytic degradation activity for the organic pollutant under the visible light. The catalytic degradation capability of the molecular imprinting Co-doped TiO2 is 3.37 times that of Co-doped TiO2, and has a higher practical application value. 种在可见光下具有高催化降解活性和选择性的分子印迹Co掺杂TiO的制法，属于光催化剂制备的技术领域。本发明采用钛酸四丁酯为钛源，硝酸钴为元素来源，对罗丹明B(RhB)作为目标分子，以对苯二胺为