改性多孔磁性金属有机框架复合生物炭的制备及应用方法
By modifying and pyrolyzing Ulva prolifera biomass at high temperature, a porous magnetic metal-organic framework composite biochar was prepared, which solved the problem of removing hexavalent chromium ions from dyeing and printing wastewater, achieved efficient adsorption and recovery, avoided secondary pollution, and has good application prospects.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- CHANGZHOU UNIV
- Filing Date
- 2023-09-25
- Publication Date
- 2026-07-17
AI Technical Summary
Existing technologies are insufficient for efficiently removing hexavalent chromium ions from dyeing and printing industrial wastewater, and traditional methods may lead to secondary pollution and separation difficulties.
Potassium hydroxide and thiourea were used to modify the biomass of *Ulva prolifera*. Thiourea-modified porous biochar was prepared by high-temperature pyrolysis, and iron oxide and copper-based metal-organic frameworks were grown on its surface to construct a magnetic adsorbent. The adsorbent was recovered using magnetic separation technology.
It achieves efficient adsorption and recovery of hexavalent chromium ions, solves the problem of powder aggregation and difficulty in separation, reduces secondary pollution, and is simple to operate and energy-saving.
Smart Images
Figure CN117718017B_ABST