The invention relates to a synthesis method of a
nitrogen-
doped carbon-coated Cu / TiO2 interface structure. The synthesis method comprises the following steps: dissolving
copper chloride, 1, 5-glutaricacid and
benzoic acid in an
organic solvent, and standing to obtain a clear solution; adding
acetic acid and Ti (OiPr) 4 into the clarified solution to obtain a
mixed solution, transferring the mixedsolution into a reaction kettle, heating to react for a period of time, and cooling to obtain a hetero-
metal cluster precursor; and calcining the hetero-
metal cluster precursor in a protective
atmosphere for a period of time to obtain the
nitrogen-
doped carbon-coated Cu / TiO2 interface structure nano material. The synthesis method is simple and easy to implement, the hetero-
metal cluster precursoris synthesized by virtue of a
hydrothermal synthesis method, accurate combination of Cu and Ti elements is realized, and then the
nitrogen-
doped carbon-coated Cu / TiO2 interface structure
composite material is prepared by virtue of in-situ high-temperature
calcination. The prepared nitrogen-doped carbon-coated Cu / TiO2 interface structure material belongs to a metal and
semiconductor composite photocatalyst and has higher photocatalytic activity in comparison with a TiO2 single catalyst and can be used as a new photocatalytic material and has a better application prospect.