Electrochemical sensor for detecting DOP (dioctyl phthalate) based on kaolin-tin disulfide material and construction method of electrochemical sensor

The invention discloses an electrochemical sensor for detecting DOP based on a kaolin-tin disulfide material and a construction method of the electrochemical sensor, and belongs to the technical field of electrochemical analysis. The electrochemical sensor comprises a base electrode, and the surface of the base electrode is sequentially modified with a kaolin-tin disulfide composite material and a molecularly imprinted polymer material with template molecules removed. The preparation method comprises the following steps: firstly, loading tin disulfide on the surface of kaolin to synthesize a kaolin-tin disulfide composite material, dispensing the kaolin-tin disulfide composite material on a glassy carbon electrode to obtain a KL-SnS2/GCE electrode, and then preparing the KL-SnS2/GCE composite material by taking DOP as a template molecule and o-phenylenediamine as a functional monomer. A molecular imprinting polymer is modified on a KL-SnS2/GCE electrode through an electropolymerization method to capture a tar