Removal of heavy metal cations by biogenic magnetite nanoparticles produced in Fe(III)-reducing microbial enrichment cultures

Keisuke Iwahori; Jun-ichi Watanabe; Yukinori Tani; Haruhiko Seyama; Naoyuki Miyata

doi:10.1016/j.jbiosc.2013.08.013

Removal of heavy metal cations by biogenic magnetite nanoparticles produced in Fe(III)-reducing microbial enrichment cultures

J Biosci Bioeng. 2014 Mar;117(3):333-5. doi: 10.1016/j.jbiosc.2013.08.013. Epub 2013 Sep 21.

Authors

Keisuke Iwahori¹, Jun-ichi Watanabe¹, Yukinori Tani¹, Haruhiko Seyama², Naoyuki Miyata³

Affiliations

¹ Institute for Environmental Sciences, University of Shizuoka, 52-1 Yada, Suruga-ku, Shizuoka 422-8526, Japan.
² National Institute for Environmental Studies, 16-2 Onogawa, Tsukuba, Ibaraki 305-8506, Japan.
³ Department of Biological Environment, Akita Prefectural University, Shimoshinjo-Nakano, Akita 010-0195, Japan. Electronic address: nmiyata@akita-pu.ac.jp.

PMID: 24060652
DOI: 10.1016/j.jbiosc.2013.08.013

Abstract

The biogenic magnetite nanoparticles presented here had a high capacity of adsorbing metal cations, which was approximately 30- to 40-fold greater than commercially available magnetite. These results suggest the potential application of microbial magnetite formation in the removal of toxic metal cations from water.

Keywords: Biogenic magnetite nanoparticles; Biomineralization; Dissimilatory Fe(III)-reducing bacteria; Heavy metal sorption; X-ray diffraction.

Publication types

Research Support, Non-U.S. Gov't

MeSH terms

Adsorption
Cations / isolation & purification*
Ferric Compounds / chemistry*
Geobacter / metabolism*
Magnetite Nanoparticles / chemistry*
Magnetite Nanoparticles / ultrastructure
Metals, Heavy / isolation & purification*

Substances

Cations
Ferric Compounds
Magnetite Nanoparticles
Metals, Heavy