Ag modified Bi2Mo2O4 / WS2 heterojunction composite material, preparation method thereof and application thereof in trace detection of organic pollutants
By preparing Ag-modified Bi2Mo2O9/WS2 heterojunction composite materials, and combining Z-type heterojunctions and surface plasmon resonance effects, the sensitivity and stability problems of existing SERS substrates were solved, and high-sensitivity and stable detection of organic pollutants was achieved.
Patent Information
- Application Number
- CN202610864264.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2026-06-16
- Publication Date
- 2026-07-17
AI Technical Summary
Existing SERS substrates suffer from insufficient sensitivity, poor stability, and narrow spectral response range in the detection of organic pollutants. Traditional noble metal nanomaterials are costly and lack stability, while metal oxide/sulfide substrates have limited spectral response.
Bi2Mo2O9/WS2 heterojunctions were prepared by a one-step hydrothermal method and Ag nanoparticles were loaded by chemical reduction to form a multi-interface coupling structure. Combined with the dual charge separation mechanism of the Z-type heterojunction, the detection performance was improved.
It significantly improves the sensitivity and stability of SERS detection, broadens the spectral response range, and enables ultra-trace detection of organic pollutants.
Smart Images
Figure CN122409622A_ABST