Constructing black titania with unique nanocage structure for solar desalination

Research output: Journal Publications and ReviewsRGC 21 - Publication in refereed journalpeer-review

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Author(s)

Detail(s)

Original languageEnglish
Pages (from-to)31716-31721
Journal / PublicationACS Applied Materials and Interfaces
Volume8
Issue number46
Publication statusPublished - 23 Nov 2016
Externally publishedYes

Abstract

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. © 2016 American Chemical Society.

Research Area(s)

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

Bibliographic Note

Publication details (e.g. title, author(s), publication statuses and dates) are captured on an “AS IS” and “AS AVAILABLE” basis at the time of record harvesting from the data source. Suggestions for further amendments or supplementary information can be sent to lbscholars@cityu.edu.hk.

Citation Format(s)

Constructing black titania with unique nanocage structure for solar desalination. / Zhu, Guilian; Xu, Jijian; Zhao, Wenli et al.
In: ACS Applied Materials and Interfaces, Vol. 8, No. 46, 23.11.2016, p. 31716-31721.

Research output: Journal Publications and ReviewsRGC 21 - Publication in refereed journalpeer-review