Microbial Synthesis and Characterization of Superparamagnetic Zn-Substituted Magnetite Nanoparticles
The objective of this study is to examine microbial synthesis of magnetite and Zn-substituted magnetite nanoparticles by iron-reducing bacteria (Clostridium sp.) enriched from intertidal flat sediments. The magnetite nanoparticles were synthesized by the bacteria under anaerobic
conditions at room temperature using akaganeite (ß-FeOOH) or Zn-substituted akaganeite (ß-Zn
x
Fe1-x
OOH) as a magnetite precursor during glucose fermentation. This research indicates that fermentation processes can establish the microbial synthesis
of magnetite and Zn-substituted magnetite when conditions are at room temperature, ambient pressure, and pH values near neutral to slightly basic (pH < 8).
Document Type: Research Article
Publication date: 01 August 2015
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