Hydroquinone molecular imprinting photoelectrochemical sensor as well as preparation method and application thereof

The embodiment of the invention provides a hydroquinone molecularly imprinted photoelectrochemical sensor as well as a preparation method and application thereof. The sensor comprises a reference electrode, an auxiliary electrode and a working electrode, the reference electrode, the auxiliary electrode and the working electrode form a three-electrode system, the working electrode is a molecularly imprinted modified electrode, and the molecularly imprinted modified electrode comprises a conductive substrate, a composite material loaded on the conductive substrate and a molecularly imprinted polymer film layer; wherein the conductive substrate is an L-shaped glassy carbon electrode, the composite material is a CdS nanoparticle/ZnIn2S4 nanosheet heterostructure, and the molecularly imprinted polymer film layer is prepared by adopting an electropolymerization-elution method. According to the present invention, the CdS nanoparticle/ZnIn2S4 nanosheet heterostructure is adopted as the photoelectric conversion layer,