Solar steam generation by wood coated by Ag nanoparticles
Paper ID : 1299-ICNS
atefe ebrahimi *1, Elaheh Kafshdar Goharshadi2
1Chemistry Department, Ferdowsi University of Mashhad, Mashhad
2Chemistry Department, Ferdowsi University of Mashhad
Availability of freshwater is becoming an increasingly significant worldwide issue. This problem is much more serious in arid regions that are facing with a severe shortage of freshwater. Out of the total water on the earth, about 96.54% is salt water and the remaining of 2.53% is freshwater. Just less than 0.36% of the freshwater is directly available to human. Water scarcity resulting from economic and population growth is considered as one of the most important threats for human societies and an obstacle for sustainable development. Herein, solar steam was generated using silver nanoparticles (NPs) coated on poplar wood. The coated wood localizes the temperature increase at the water−air interface rather than uniformly heating the bulk of the water which results in a solar−thermal conversion efficiency as high as 63% under a simulated solar light with an intensity of 3 kW m-2. This finding should inspire new method with rationally designed structure for superior solar desalination performance.
Solar steam; Solar desalination; reduce graphene oxide; Ag nanoparticles.
Status : Abstract Accepted (Poster Presentation)