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Solar evaporation enhancement using floating light-absorbing magnetic particles

Zeng, Y, Wang, K, Amini Horri, B, Yao, J, Wu, Y, Li, D and Want, HT (2011) Solar evaporation enhancement using floating light-absorbing magnetic particles Energy & Environmental Science, 4 (10). pp. 4074-4078.

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We have demonstrated a new strategy for enhancing solar evaporation by using floating light-absorbing materials. Floating Fe3O4/C magnetic particles with an average size of 500 nm were synthesized by carbonization of poly(furfuryl alcohol) (PFA) incorporated with Fe3O4 nanoparticles. The Fe3O4/C particles had a BET surface area of 429 m2 g−1, and a density of 1.44 g cm−3. Because of their hydrophobicity and a bulk packing density of 0.53 g cm−3, Fe3O4/C particles were floatable on water. Our results indicated that these Fe3O4/C particles enhanced the water evaporation rate by as much as a factor of 2.3 in the solar evaporation of 3.5% salt water. In addition, Fe3O4/C particles were easily recycled using a magnet, and stable after being recycled three times. Our work provides a low-cost and highly effective way for accelerating solar evaporation for industrial applications such as solar desalination, salt production, brine management and wastewater treatment.

Item Type: Article
Subjects : Chemical and Process Engineering
Divisions : Faculty of Engineering and Physical Sciences > Chemical and Process Engineering
Authors :
Zeng, Y
Wang, K
Amini Horri, B
Yao, J
Wu, Y
Li, D
Want, HT
Date : 4 August 2011
DOI : 10.1039/C1EE01532J
Copyright Disclaimer : © The Royal Society of Chemistry 2011
Depositing User : Symplectic Elements
Date Deposited : 30 Mar 2017 09:19
Last Modified : 31 Oct 2017 19:10

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