Ultra large scale and green synthesis of monodisperse magnetite nanocrystals from edible oils and rust

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Cafer T. Yavuz, cafer@rice.edu1, Jessica A. Cox, Carmen R. Suchecki2, Angelina A. Tran, J. T. Mayo, mayoj@rice.edu1, Arjun Prakash, Arjun.Prakash@rice.edu3, Joshua C. Falkner, jfalkner@rice.edu1, Elizabeth Quevedo, EQ23@rice.edu1, and Vicki L Colvin4. (1) Department of Chemistry, Rice University, 6100 Main St. MS 60, Houston, TX 77005, (2) Northwestern University, 633 Clark Street, Evanston, IL 60208, (3) Department of Chemical and Biomolecular Engineering, Rice University, 6100 Main St. MS-362, Houston, TX 77005, (4) Dept. of Chemistry, Dept. of Chemical and Biomolecular Engineering, and Center for Biological and Environmental Nanotechnology, Rice University, 6100 Main Street, MS-60, Houston, TX 77005
Magnetite (Fe3O4) nanocrystals were synthesized in size distributions below 10% and in massive quantities. We present the first reactor that would produce highly monodisperse and uniform magnetite nanocrystals as much as 1g/hour. The most environmental friendly (green) synthesis was reported for high quality nanocrystals. Cost of manufacturing of magnetite nanocrystals cut down to industrial standards by utilizing edible oils and rust as precursors. Arsenic removal with high quality, monodisperse magnetite nanocrystals under ordinary magnetic fields was also reported (Ref: Yavuz et al., Science, 314, 964-7).