This invention relates to a ternary
heterojunction catalyst
electrode, its preparation method, and its application in the electrocatalytic degradation of dyes. The preparation method of the ternary
heterojunction catalyst
electrode of this invention involves: dissolving a
sulfur source in an MXene dispersion, heating and stirring to obtain a first mixture; dissolving a
molybdenum source in the first mixture, heating and stirring to obtain a second mixture; immersing
nickel foam in the second mixture and placing it in a reactor for heating and reaction to obtain the ternary
heterojunction catalyst
electrode. The ternary heterojunction catalyst electrode uses
nickel foam as a substrate, the surface of which is coated with MXene, and the surface of the MXene is supported with intercalated
molybdenum disulfide; wherein the MXene and
molybdenum disulfide are bonded through Ti-O-Mo bonds. This invention, by constructing a heterojunction and utilizing interface
engineering to synergistically optimize the
electronic structure, can effectively enhance the
electron transfer rate, achieving a highly efficient electrocatalytic activity of "1+1>2".