In-situ self-assembly of plant polyphenol-coated Fe3O4 particles for oleaginous microalgae harvesting.
作者： Xiaoyu Wang , Yuan Zhao , Xiaoxue Jiang , Lijun Liu , Xue Li
DOI: 10.1016/J.JENVMAN.2018.03.019
关键词:
摘要: Abstract Plant polyphenol (PP), a natural polymer from the Larix gmelinii , was selected as surfactant to synthesize Fe 3 O 4 . The -PP composite prepared by in-situ self-assembly in solvothermal synthesis, and characterized using FE-SEM, TEM, XRD, FTIR, XPS, TGA, VSM. harvesting efficiency of Chlorella vulgaris investigated under different parameters, including algal organic matter, dosage, pH. results showed that core-shell sphere (∼150 nm) coated ∼50 nm PP with saturated magnetization 40.0 emu/g. could be directly applied culture broth (1.5 g dry cell weight/L, pH = 9.03), achieving 93.0% at 20 g/L. Cells were detached harvested aggregates adjusting pH value 9.80 ultrasonication, which achieved 95.6% recovery efficiency. recycled high stabilities surface properties, maintaining more than 87.5% after five recycles.
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