Wood-Graphene Oxide Composite for Highly Efficient Solar Steam Generation and Desalination

Keng Ku Liu, Qisheng Jiang, Sirimuvva Tadepalli, Ramesh Raliya, Pratim Biswas, Rajesh R. Naik, Srikanth Singamaneni

Research output: Contribution to journalArticlepeer-review

349 Scopus citations

Abstract

Solar steam generation is a highly promising technology for harvesting solar energy, desalination and water purification. We introduce a novel bilayered structure composed of wood and graphene oxide (GO) for highly efficient solar steam generation. The GO layer deposited on the microporous wood provides broad optical absorption and high photothermal conversion resulting in rapid increase in the temperature at the liquid surface. On the other hand, wood serves as a thermal insulator to confine the photothermal heat to the evaporative surface and to facilitate the efficient transport of water from the bulk to the photothermally active space. Owing to the tailored bilayer structure and the optimal thermo-optical properties of the individual components, the wood-GO composite structure exhibited a solar thermal efficiency of ∼83% under simulated solar excitation at a power density of 12 kW/m2. The novel composite structure demonstrated here is highly scalable and cost-efficient, making it an attractive material for various applications involving large light absorption, photothermal conversion and heat localization.

Original languageEnglish (US)
Pages (from-to)7675-7681
Number of pages7
JournalACS Applied Materials and Interfaces
Volume9
Issue number8
DOIs
StatePublished - Mar 1 2017
Externally publishedYes

Keywords

  • desalination
  • graphene oxide
  • photothermal
  • solar steam
  • wood

ASJC Scopus subject areas

  • Materials Science(all)

Fingerprint

Dive into the research topics of 'Wood-Graphene Oxide Composite for Highly Efficient Solar Steam Generation and Desalination'. Together they form a unique fingerprint.

Cite this