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- W2069850143 abstract "Fe3O4 nanoparticles were functionally coated with polyethylenimine (PEI), which contained a high concentration of -NH2 groups, for the efficient harvesting of microalgae. The functional magnetic nanocomposites were 12 nm in diameter and 69.77 emu/g of saturation magnetization. Using a nanocomposite dosage of 20 mg/L for harvesting Chlorella ellipsoidea cells, a harvesting efficiency of 97% was achieved within 2 min. Increasing the temperature resulted in an increase in harvesting efficiency. The adsorption isotherm data fit the Langmuir model, suggesting that the adsorption was monolayer. The adsorption capacity of the Fe3O4-PEI nanocomposites for the microalgal cells reached up to 93.46 g-DCW/g-nanocomposites through electrostatic attraction and nanoscale interactions between the nanocomposites and the microalgal cells. The functional nanocomposites provide a base for efficient microalgae harvesting with clear advantages such as rapid execution, low energy consumption, and improves water-use in the algal harvesting process. (C) 2013 Elsevier B.V. All rights reserved." @default.
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- W2069850143 date "2014-04-01" @default.
- W2069850143 modified "2023-09-27" @default.
- W2069850143 title "Improvement of microalgae harvesting by magnetic nanocomposites coated with polyethylenimine" @default.
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- W2069850143 doi "https://doi.org/10.1016/j.cej.2013.12.066" @default.
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