BiOBr / CuBi2O4复合催化剂在光催化降解气态甲醛中的应用
By preparing a BiOBr/CuBi2O4 composite catalyst, the problem of limited photogenerated electron recombination and visible light response region in the degradation of gaseous formaldehyde by the BiOBr/CuBi2O4 composite catalyst with pn heterojunction was solved, and a highly efficient and stable photocatalytic degradation effect was achieved.
CN117065561BActive Publication Date: 2026-07-17YANGZHOU UNIV
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- YANGZHOU UNIV
- Filing Date
- 2023-07-19
- Publication Date
- 2026-07-17
AI Technical Summary
Technical Problem
Existing photocatalysts, such as BiOBr, suffer from problems such as rapid recombination of photogenerated electrons or holes and a limited visible light response region when degrading gaseous formaldehyde, resulting in low degradation efficiency.
Method used
By preparing a BiOBr/CuBi2O4 composite catalyst, the photocatalytic performance and stability of the pn heterojunction BiOBr/CuBi2O4 composite catalyst are improved, which can be used to degrade gaseous formaldehyde at room temperature.
Benefits of technology
It achieves a high degradation efficiency of 98.00% for gaseous formaldehyde at room temperature, and the catalyst exhibits good stability.
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Figure CN117065561B_ABST
Abstract
本发明公开了一种BiOBr / CuBi2O4复合催化剂在光催化降解气态甲醛中的应用。本发明所述的BiOBr / CuBi2O4复合催化剂通过将Bi(NO3)3·5H2O的乙二醇溶液和KBr的乙二醇溶液逐滴加入到CuBi2O4的水分散液中，混合搅拌反应制得。本发明以BiOBr / CuBi2O4复合催化剂为光催化剂，在光照下可以将甲醛降解为无毒的二氧化碳和水，降解效果最高可达98.00%，具有高效的催化性能和稳定性，适用于室内甲醛净化领域。
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