2011
DOI: 10.1039/c1ee01532j
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Solar evaporation enhancement using floating light-absorbing magnetic particles

Abstract: 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 … Show more

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Cited by 276 publications
(185 citation statements)
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“…Halas and co‐workers first generated the steam via SiO 2 /Au nanoshells or carbon particles dispersed in water under sunlight irradiation . Wang and co‐workers enhanced solar evaporation via floating of the Fe 3 O 4 /C magnetic particles . Then, Chen et al revealed the efficient vapor generation by employing the suspended nanomaterials of graphitized carbon black, carbon black, and graphene in water medium .…”
Section: Introductionmentioning
confidence: 99%
“…Halas and co‐workers first generated the steam via SiO 2 /Au nanoshells or carbon particles dispersed in water under sunlight irradiation . Wang and co‐workers enhanced solar evaporation via floating of the Fe 3 O 4 /C magnetic particles . Then, Chen et al revealed the efficient vapor generation by employing the suspended nanomaterials of graphitized carbon black, carbon black, and graphene in water medium .…”
Section: Introductionmentioning
confidence: 99%
“…Several other groups have looked into the role of surface chemistry in aiding water delivery and thermal insulation of the bottom layer, 20 incorporating plasmonic or carbon-based absorption layers, [29][30][31][32][33] and using other cheap and abundant materials. 34,35 These studies have achieved relatively high evaporation efficiencies, but relied on optical concentration to boost the evaporation temperatures and achieve such efficiencies. For example, Ito et al 29 used a concentration of 9x to achieve steam generation.…”
mentioning
confidence: 99%
“…One class of photothermal materials is the organic compounds, such as supramolecular free radicals with an excellent photothermal conversion effect, which is suffering from obvious photobleaching . Another class of photothermal materials is inorganic nanoparticles, including noble metal nanoparticle materials, carbon‐based nanomaterials, and semiconductor materials . Among these photothermal materials, Au nanostructures are the most studied with strong photothermal effects, which have been widely investigated in different areas such as nanoscience and nanotechnology .…”
Section: Introductionmentioning
confidence: 99%