A Janus hydrogel skeleton-encapsulated yarn-based evaporator for excellent desalination and lithium enrichment

Key Points

• This research aims to develop a hydrogel-based evaporator for improved salt and lithium ion transport.
• Developed a double-layer hydrogel structure with PVA/PSS and PVA/PDDA components.
• Evaluated adhesion properties, salt resistance, and evaporation efficiency of the hydrogel.
• Assessed the selective ion transport capabilities for Li⁺ ions.
• The hydrogel demonstrated strong adhesion and good salt resistance.
• Enhanced evaporation rates were achieved, leading to efficient ion transport.
• The hydrogel effectively enriched lithium ions (Li⁺).