Seawater solar desalination using the nanocomposite of reduced graphene oxide and iron/nickel bimetallic nanoparticles
Paper ID : 1363-ICNS
Roya Mehrkhah *1, Elaheh Kafshdar Goharshadi2, Mojtaba Mohammadi3
1Chemistry, Science, Ferdowsi, Iran
2Chemistry Department, Ferdowsi University of Mashhad
3Physics, Science, Ferdowsi, Iran
Due to the increasing world population and climate changes, increasing potable water needs is one of the most present serious global challenges. Hence, seawater desalination is required for supplying the fresh water especially for water-stressed regions. Inspired by the natural evaporation, solar water desalination as one of the promising techniques could overcome water scarcity crisis in the world. Herein (RGO/FeNi) nanocomposite was coated on the wood surface and used as an absorber for harvesting wide spectrum of sunlight. RGO/FeNi nanocomposite had the high evaporation mass loss of 3.28 g under 3 suns solar simulated illumination for 40 minute due to its capability to harvest broadband range of sunlight spectrum and prevent heat loss to the seawater below. Using this nanocomposite, we could achieve 85% evaporation efficiency which was 7 times more than that of seawater alone (11%). Furthermore, it was a durable material and was stable after 4 evaporation cycles.
RGO/FeNi composite, Solar desalination, Evaporation efficiency
Status : Abstract Accepted (Poster Presentation)