Micron acanthosphere-shaped soil leaching material as well as preparation method and application thereof
By preparing micron-spiky spherical soil leaching materials, the problems of easy detachment and insufficient contact area of existing leaching materials have been solved, achieving efficient remediation of heavy metal contaminated soil and showing good application prospects.
Patent Information
- Application Number
- CN202610621460.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2026-05-08
- Publication Date
- 2026-06-05
AI Technical Summary
Existing heavy metal contaminated soil leaching materials are prone to detachment and loss under mechanical disturbance and hydraulic scouring, and the leaching channels are easily blocked. In addition, the contact area between the material and the contaminated soil and the intensity of mechanical action are insufficient, resulting in a slow desorption kinetic rate of heavy metals and difficulty in improving leaching efficiency.
A combined approach of oil-phase ultrasonic pulse electrochemical deposition, microfluidic coaxial emulsion isothermal crosslinking, breath map-assisted confined self-assembly, and selective etching coupled with fluorine and nitrogen co-doping was used to prepare micron-sized spiky spherical soil leaching materials. The bonding strength and surface affinity of the materials were improved by using composite inorganic nanocrystal nuclei and organic crosslinked network frameworks, selective etching, and fluorine and nitrogen co-doping plasma treatment.
The prepared micron-spiky spherical leaching material has a large specific surface area, is environmentally friendly, can effectively reduce the heavy metal content in soil, and has a leaching rate of over 90%, making it highly valuable for application and promotion.