SiO2@Cu2GaBO5@TiO2微米球异质结光催化材料及光催化产氢和甲醛应用
By constructing Cu2GaBO5@TiO2 heterojunction photocatalytic materials on the SiO2 surface, the problem of poor light absorption capacity of TiO2 was solved, and efficient photocatalytic hydrogen production and formaldehyde production were achieved, thus broadening the application of borates in the field of photocatalysis.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- SHAANXI NORMAL UNIV
- Filing Date
- 2023-11-15
- Publication Date
- 2026-07-17
AI Technical Summary
Existing TiO2 photocatalysts have a large band gap and poor light absorption capacity, and can only absorb ultraviolet light from sunlight, which limits their application in the field of photocatalysis. Furthermore, there is relatively little research on borate photocatalytic materials in the field of photocatalysis.
Using spherical SiO2 as a hard template, Cu2GaBO5 and TiO2 are coated on its surface through a two-step hydrothermal-pyrolysis method to construct a SiO2@Cu2GaBO5@TiO2 microsphere heterojunction photocatalytic material. The strong light absorption capacity and crystal structure distortion of Cu2GaBO5 promote electron transfer and broaden the utilization rate of visible light.
It achieves efficient photocatalytic hydrogen production and formaldehyde production. The photocatalytic hydrogen production of SiO2@Cu2GaBO5@TiO2 is several times that of SiO2@Cu2GaBO5 and Cu2GaBO5@TiO2, and methanol can be oxidized into formaldehyde, a high-value-added product.
Smart Images
Figure CN118162136B_ABST