A method for nanoparticle-induced preparation of zinc arsenide
By using zinc salt reducing agent in the electrolytic cell to change the charge structure on the cathode surface, promoting arsenic species mass transfer and alloying to form a Zn3As2 deposition layer, the problems of electrostatic repulsion and product instability in arsenic-containing wastewater treatment are solved, and efficient arsenic reduction and alloy recovery are achieved.
Patent Information
- Application Number
- CN202610557395.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2026-04-24
- Publication Date
- 2026-07-17
AI Technical Summary
Existing technologies are unable to efficiently reduce arsenic anions in arsenic-containing wastewater and generate stable zinc arsenide alloys. They suffer from problems such as electrostatic repulsion hindering mass transfer and unstable products, resulting in low reduction efficiency and the risk of secondary pollution.
An electrolytic cell equipped with an ion exchange membrane is used. By adding soluble zinc salt to the cathode chamber and applying a constant potential or current, the reduction effect of zinc ions is used to change the charge structure on the cathode surface, promote the mass transfer of arsenic species, and alloy the cathode surface to form a Zn3As2 deposition layer.
This approach achieves the treatment of arsenic pollution and the resource recovery of semiconductor materials, generating a thermodynamically stable Zn3As2 alloy, which improves current efficiency and arsenic recovery rate, and avoids secondary pollution and subsequent disposal costs.
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Figure CN122406241A_ABST