多金属氧酸盐复合N掺杂碳量子点及其制备方法和应用
By preparing N-doped carbon quantum dots via a hydrothermal method and combining it with a stirring and settling process, a tight bond between polyoxometalates and N-doped carbon quantum dots was achieved, solving the problems of weak bonding and easy aggregation. This improved catalytic performance and stability, making it suitable for large-scale application in photocatalytic carbon dioxide reduction.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- INNER MONGOLIA UNIVERSITY
- Filing Date
- 2026-04-30
- Publication Date
- 2026-07-17
AI Technical Summary
Existing composite methods of polyoxometalates and N-doped carbon quantum dots suffer from problems such as weak bonding, loose interfacial contact, and easy agglomeration, resulting in poor composite material stability, rapid decay of catalytic performance, and complicated and costly preparation methods, making it difficult to apply on a large scale.
N-doped carbon quantum dots were synthesized in one step using a hydrothermal method. Combined with a stirring and static synergistic assembly process, the close bonding between polyoxometalates and N-doped carbon quantum dots was achieved by controlling the ratio of reactants. During the preparation process, the pH of the system was controlled to 7 to form matching charge characteristics, promote electrostatic interaction and coordination bonding, and construct a stable interfacial bonding structure.
The process achieves tight bonding of polyoxometalate composite N-doped carbon quantum dots, which enhances light absorption capacity and electron separation efficiency. It exhibits excellent catalytic activity and stability, is simple and environmentally friendly, suitable for large-scale production, and demonstrates excellent catalytic performance in photocatalytic carbon dioxide reduction reaction.
Smart Images
Figure CN122098660B_ABST