Microbially mediated-precipitation of cadmium carbonate nanoparticles

Serku Kang, Yumi Kim, Young Jae Lee, Yul Roh

Research output: Contribution to journalArticlepeer-review

5 Citations (Scopus)


The objectives of this study were to investigate the microbially mediated precipitation of cadmium using microorganisms enriched from rhodoliths and to characterize the mineralogical properties of the precipitates. A 16S rRNA sequence analysis showed the enriched microorganisms contained carbonate forming microorganisms such as Proteus mirabilis. The microorganisms mediated Cd-precipitation with Cd-acetate, but no precipitates were formed without the microbes in D-1 medium. XRD analysis showed the precipitates were poorly crystalline Cd-carbonates (CdCO3). SEM and TEM-EDS analyses showed that the Cd-carbonate minerals were irregular in shape, 20-30 nm in size, and composed of C, O, and Cd. Therefore, microbially mediated precipitation of cadmium carbonates could be used as a precursor of CdO nanoparticles and could play an important role in Cd immobilization in Cd-contaminated water as well as CO2 fixation in natural environments.

Original languageEnglish
Pages (from-to)418-420
Number of pages3
JournalJournal of Nanoscience and Nanotechnology
Issue number1
Publication statusPublished - 2015 Jan 1


  • Bacteria
  • Cadmium
  • Nanoparticles
  • Precipitation

ASJC Scopus subject areas

  • Condensed Matter Physics
  • General Chemistry
  • General Materials Science
  • Bioengineering
  • Biomedical Engineering


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