N-CNTs@NiCo-LDHs dendritic nanoflower material and preparation method and photoelectrochemical application thereof

The invention provides an N-CNT@NiCo-LDHs tree-shaped nanoflower material as well as a preparation method and photoelectrochemical application thereof, and belongs to the technical field of biosensing. The preparation method comprises the following steps: adding anhydrous ferric trichloride into a methyl orange solution at room temperature to form a fibrous compound suspension for later use; adding a pyrrole monomer into the fibrous compound suspension, stirring overnight, filtering, washing and drying to obtain polypyrrole hollow nanotubes, and then carbonizing at high temperature in a nitrogen atmosphere to prepare N-CNTs; by taking N-CNTs as a conductive substrate, ultrasonically dispersing the N-CNTs in ethanol to prepare a solution A; then by taking the Co(NO3)2.6H2O and Ni(NO3)2.6H2O as metal sources and hexamethylenetetramine as a homogeneous precipitator, dissolving the components in water to prepare a solution B, mixing the solution A and the solution B, carrying out a homogeneous precipitation react