The invention discloses
cysteine mediated Hf / Cu
bimetal synergistic self-assembled nano-particles as well as a preparation method and application of the
cysteine mediated Hf / Cu
bimetal synergistic self-assembled nano-particles. According to the method,
cysteine is used as a multifunctional ligand, carboxyl and sulfydryl of cysteine are in bridge connection with
metal through coordination, ligand
chelation and
assembly guiding effects are synchronously exerted, bimetallic ions are induced to be cooperatively self-assembled in an alkaline
system (pH is 9-10), and
metal cysteine self-assembled nanoparticles with uniform structures are formed through in-situ
nucleation and multistage aggregation. According to the method, the ligand function and the bimetallic synergistic effect are accurately matched, the synthesis process is mild (
room temperature), the operation is simple and convenient, and the product is excellent in
dispersity and stability. Meanwhile, a close coordination structure constructed by cysteine provides a key channel for energy /
electron transfer from sensitizing
metal to Cu under X-
ray irradiation, and lays a structural foundation for subsequent
catalytic effect enhancement.