A Low Temperature Solution Chemistry Process for Fluoride Salt (NaF) Waste Immobilization into Metal Halide Perovskite Structured Na2SnF6

Key Points

• To explore a novel process for immobilizing complex fluoride salt waste streams.
• Developed a low temperature solution chemistry technique
• Investigated the formation of Na2SnF6 from NaF waste
• Characterized the perovskite structure of the resulting material
• Successfully synthesized Na2SnF6 with optimal properties for waste management
• Demonstrated that the new method effectively incorporates fluoride salts
• Indicated the potential for enhanced durability and stability of immobilized waste