一种自漂浮Znln2S4 / CeO2 / 碳海绵光催化材料的制备方法及应用
By preparing a self-floating Znln2S4/CeO2/carbon sponge photocatalytic material, the problem of hexavalent uranium reduction and enrichment in the existing technology was solved, achieving a highly efficient uranium extraction effect from seawater, and the material has good stability and reusability.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- HARBIN NORMAL UNIVERSITY
- Filing Date
- 2024-03-05
- Publication Date
- 2026-07-17
AI Technical Summary
Existing technologies are insufficient to efficiently reduce hexavalent uranium in seawater to solid tetravalent uranium under visible light. Furthermore, the reduced uranium is difficult to enrich and the resulting powder material is difficult to form, which has prevented breakthrough progress in seawater uranium extraction strategies.
A self-floating Znln2S4/CeO2/carbon sponge photocatalytic material was prepared by a one-step solubilization method to synthesize Znln2S4, a thermal deposition method to synthesize Znln2S4/CeO2, and finally Znln2S4/CeO2/CN. Uranium extraction from seawater was carried out under visible light conditions.
It achieves high efficiency in uranium extraction under visible light, reaching 13.2 mg/g. The material has good stability and retains more than 99% of its catalytic performance after recycling. The material can float freely on the sea surface, which enhances the value of uranium extraction from seawater.
Smart Images
Figure CN118045622B_ABST