Microbial Synthesis and Characterization of Superparamagnetic Zn-Substituted Magnetite Nanoparticles

被引：10

作者：

Kim, Yumi ^{[1
]}

Roh, Yul ^{[1
]}

机构：

[1] Chonnam Natl Univ, Dept Earth & Environm Sci, Kwangju 500757, South Korea

来源：

JOURNAL OF NANOSCIENCE AND NANOTECHNOLOGY | 2015年 / 15卷 / 08期

关键词：

Nanoparticle; Magnetite; Biosynthesis; Zinc-Substituted Magnetite; Fermentation; THERMOPHILIC BACTERIUM; REDUCTION; IRON;

D O I：

10.1166/jnn.2015.10458

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

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 (beta-FeOOH) or Zn-substituted akaganeite (beta-ZnxFe1-xOOH) 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).

引用

页码：6129 / 6132

页数：4

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