Titanium substrate with metal nanoparticles growing on surface in situ and application of titanium substrate

A technology of in-situ growth of metal nanoparticles, applied in nanotechnology, nanotechnology, nanotechnology, etc. for materials and surface science, can solve the problem of uneven distribution of metal nanoparticles, inability to use in large quantities, and easy shedding of nanoparticles and other problems, to achieve the effect of mass production, simple and rapid preparation operation, and good chemical stability
CN112481608AActive Publication Date: 2021-03-12JIANGNAN UNIV
3 Cites 2 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
JIANGNAN UNIV
Publication Date
2021-03-12

Smart Images

  • Figure 1
    Figure 1
  • Figure 2
    Figure 2
  • Figure 3
    Figure 3
Patent Text Reader

Abstract

The invention discloses a titanium substrate with metal nanoparticles growing on the surface in situ and application of the titanium substrate, and belongs to the field of the enhanced Raman substratepreparation technology and detection. A pretreated titanium substrate is immersed in a chemical deposition solution, deposition is conducted for 30 s to 2 h at the temperature of 0 DEG C to 60 DEG C,the pretreated titanium substrate is cleaned and dried after being taken out, and the titanium substrate with the metal nanoparticles growing on the surface in situ can be obtained, wherein the chemical deposition solution comprises 5 g / L-40 g / L of ammonium fluoride, 1 g / L-50 g / L of metal salt, 5 g / L-30 g / L of citric acid and 0.1 vol%-1 vol% of strong acid. By regulating and controlling the etching rate of particles on the surface of the titanium substrate and the diffusion rate of trivalent titanium ions, a metal particle reduction reaction occurs in the solution near the surface of the substrate, and therefore metal elements are loaded on the surface of the titanium substrate in the form of nanoparticles, a nanoparticle layer which is more uniform and compact and free of dead corners grows on the surface of the titanium substrate, and the surface enhanced Raman effect is greatly improved.
Need to check novelty before this filing date? Find Prior Art

Description

technical field

[0001] The invention relates to a titanium substrate with in-situ growth of metal nanoparticles on the surface and its application, and belongs to the field of enhanced Raman substrate preparation technology and detection. Background technique

[0002] Since the discovery of surface-enhanced Raman scattering in 1974, Raman detection has gradually become one of the most attractive analytical tools in the field of ultrasensitive detection. Surface-enhanced Raman technology is also considered to be one of the most promising research directions in small molecule detection. By using surface-enhanced Raman imaging technology, multi-target analysis and biological image signals with higher spatial resolution can also be obtained, enabling visualization of regions with different dopant material distributions. Label-free detection can also be achieved when analyzing various biological samples. With the introduction of electromagnetic field theory into the study of su...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More