Jump to main content
Jump to site search

Issue 32, 2017, Issue in Progress
Previous Article Next Article

Magnetically recyclable self-assembled thin films for highly efficient water evaporation by interfacial solar heating

Author affiliations

Abstract

Magnetic microspheres including Fe3O4, MnFe2O4, ZnFe2O4, and CoFe2O4 have been synthesized via a simple solvothermal method followed by surface hydrophobization with 1H,1H,2H,2H-perfluorooctyltrichlorosilane. The hydrophobic magnetic microspheres can self-assemble into a thin film under simulated solar light irradiation and float on the surface of water. The formed film was used as photothermal material for water evaporation based on a new concept of interfacial solar heating. The water evaporation efficiency was significantly enhanced by the Fe3O4 thin film, and is about 1.4, 1.7 and 2.2 times higher than that without the formation of a Fe3O4 thin film, Fe3O4 uniformly dispersed in water, and water evaporation itself, respectively. The temperature gradient distributions from the surface to the bottom of the water directly demonstrated the advantage of interfacial solar heating for water evaporation. We believe that the water evaporation efficiency with the magnetic thin film is mainly due to the high light absorption, rapid heat transfer and good solid–liquid adhesion performance. In addition, the hydrophobic magnetic microspheres also have advantages over other reported photothermal materials due to their easy recycling, non-toxicity, low dose, and low cost.

Graphical abstract: Magnetically recyclable self-assembled thin films for highly efficient water evaporation by interfacial solar heating

Back to tab navigation

Supplementary files

Article information


Submitted
13 Mar 2017
Accepted
23 Mar 2017
First published
04 Apr 2017

This article is Open Access

RSC Adv., 2017,7, 19849-19855
Article type
Paper

Magnetically recyclable self-assembled thin films for highly efficient water evaporation by interfacial solar heating

R. Chen, Z. Wu, T. Zhang, T. Yu and M. Ye, RSC Adv., 2017, 7, 19849
DOI: 10.1039/C7RA03007J

This article is licensed under a Creative Commons Attribution-NonCommercial 3.0 Unported Licence. Material from this article can be used in other publications provided that the correct acknowledgement is given with the reproduced material and it is not used for commercial purposes.

Reproduced material should be attributed as follows:

  • For reproduction of material from NJC:
    [Original citation] - Published by The Royal Society of Chemistry (RSC) on behalf of the Centre National de la Recherche Scientifique (CNRS) and the RSC.
  • For reproduction of material from PCCP:
    [Original citation] - Published by the PCCP Owner Societies.
  • For reproduction of material from PPS:
    [Original citation] - Published by The Royal Society of Chemistry (RSC) on behalf of the European Society for Photobiology, the European Photochemistry Association, and RSC.
  • For reproduction of material from all other RSC journals:
    [Original citation] - Published by The Royal Society of Chemistry.

Information about reproducing material from RSC articles with different licences is available on our Permission Requests page.


Social activity

Search articles by author

Spotlight

Advertisements