Constructing black titania with unique nanocage structure for solar desalination

Guilian Zhu, Jijian Xu, Wenli Zhao, Fuqiang Huang*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

268 Scopus citations


Solar desalination driven by solar radiation as heat source is freely available, however, hindered by low efficiency. Herein, we first design and synthesize black titania with a unique nanocage structure simultaneously with light trapping effect to enhance light harvesting, well-crystallized interconnected nanograins to accelerate the heat transfer from titania to water and with opening mesopores (4-10 nm) to facilitate the permeation of water vapor. Furthermore, the coated self-floating black titania nanocages film localizes the temperature increase at the water-air interface rather than uniformly heating the bulk of the water, which ultimately results in a solar-thermal conversion efficiency as high as 70.9% under a simulated solar light with an intensity of 1 kW m-2 (1 sun). This finding should inspire new black materials with rationally designed structure for superior solar desalination performance.

Original languageEnglish (US)
Pages (from-to)31716-31721
Number of pages6
JournalACS Applied Materials and Interfaces
Issue number46
StatePublished - Nov 23 2016


  • black titania
  • light trapping
  • mesoporous
  • nanocage
  • photothermal
  • solar desalination

ASJC Scopus subject areas

  • Materials Science(all)


Dive into the research topics of 'Constructing black titania with unique nanocage structure for solar desalination'. Together they form a unique fingerprint.

Cite this