A hydrogel foam with gradient pore structure for highly efficient solar-driven seawater desalination

Key Points

• The aim is to develop a hydrogel foam with a gradient pore structure to enhance solar-driven seawater desalination efficiency.
• Developed a hydrogel foam with varying pore sizes for optimal water management.
• Tested the foam's solar evaporation performance under controlled conditions.
• Analyzed the efficiency of the design in converting solar energy to steam.
• The hydrogel foam showed significant improvements in evaporation rates compared to traditional designs.
• Gradient pore structure facilitated better water transport and steam generation.
• The system demonstrated a high efficiency in desalinating seawater with minimal energy input.