A CQDs / Bi2O3 / TiO2 ternary composite material, a preparation method and application thereof
By designing a ternary composite material of CQDs/Bi2O3/TiO2, the problems of high visible light response and high carrier recombination rate of TiO2 photocatalytic materials were solved, and efficient and stable photocatalytic performance was achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- JIANGXI UNIV OF SCI & TECH
- Filing Date
- 2026-06-02
- Publication Date
- 2026-07-17
AI Technical Summary
In practical applications, TiO2 photocatalytic materials suffer from problems such as wide bandgap response only to ultraviolet light, high recombination rate of photogenerated carriers, and insufficient surface active sites, which limit their catalytic efficiency and solar energy utilization.
A CQDs/Bi2O3/TiO2 ternary composite material was constructed. Through the synergistic design of carbon quantum dots with visible light-responsive Bi2O3 and ultraviolet light-responsive TiO2, a matched band structure was formed, which broadened the spectral absorption range and promoted interfacial charge separation.
It effectively expands the response range of photocatalysts to visible light, improves solar energy utilization efficiency, and enhances photocatalytic activity and stability.
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Figure CN122399792A_ABST