MnO2-RGO-BiOBr composite photocatalyst, preparation method thereof and application thereof in degrading gaseous formaldehyde
By preparing a MnO2-RGO-BiOBr composite photocatalyst, the synergistic effect of BiOBr nanosheets and δ-MnO2 was utilized to improve the separation efficiency of photogenerated carriers and the adsorption capacity of formaldehyde molecules, thus solving the problem of low formaldehyde degradation efficiency in indoor environments and achieving efficient and stable formaldehyde removal.
CN120939963BActive Publication Date: 2026-06-09ZUNYI NORMAL COLLEGE
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- ZUNYI NORMAL COLLEGE
- Filing Date
- 2025-08-08
- Publication Date
- 2026-06-09
Smart Images
Figure CN120939963B_ABST
Abstract
The application provides a MnO2-RGO-BiOBr composite photocatalyst, a preparation method thereof and application thereof in degrading gaseous formaldehyde, and belongs to the technical field of formaldehyde catalytic degradation. The MnO2-RGO-BiOBr composite photocatalyst is composed of BiOBr, RGO and delta-MnO2, the mass ratio of the BiOBr in the MnO2-RGO-BiOBr composite photocatalyst is 50%, and in the photocatalytic degradation of formaldehyde, the synergistic mechanism of delta-MnO2 and BiOBr, the efficient separation efficiency of photo-generated electrons and holes, the photocatalytic performance of the composite material, the strong adsorption property of the three-dimensional structure, the capture and enrichment of low-concentration gaseous formaldehyde, the contact probability of the gaseous formaldehyde and the composite material, and the oxidation degradation efficiency are all improved.
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