Journal
CHEMICAL ENGINEERING SCIENCE
Volume 116, Issue -, Pages 704-709Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.ces.2014.05.057
Keywords
Water evaporation; Hollow carbon beads; Phase inversion method; Floatable
Categories
Funding
- Australian Research Council (ARC) [DP110102311]
- Australian Research Council (ARC) for the Future Fellowship [FT100100192]
- Monash University through the Monash Fellowship Scheme [2437384]
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Floatable low-density millimetre-sized hollow carbon beads were prepared by a phase inversion method, and they were used to promote water evaporation under simulated sunlight Hollow carbon beads with 1.5 mm diameter achieved an evaporation rate of 1.28 L m(-2) h(-1) that was around 237% of the rate attained without carbon beads when 714 g m(-2) (0.5 g) of carbon beads were present. This significant enhancement of water evaporation rate is owing to the dramatic increase of the water surface temperature, which is brought about by the light-absorbing property of the floating hollow carbon beads. In addition, a good recyclability was also demonstrated. In general, these millimetre-sized hollow carbon beads accelerate the water evaporation process, making the collection and recycle process easier to suit the practical application. (C) 2014 Elsevier Ltd. All rights reserved.
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