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Concomitant microbial generation of palladium nanoparticles and hydrogen to immobilize chromate

Dev Chidambaram, Tom Hennebel (UGent) , Safiyh Taghavi, Jan Mast, Nico Boon (UGent) , Willy Verstraete (UGent) , Daniel van der Lelie and Jeffrey P Fitts
(2010) ENVIRONMENTAL SCIENCE & TECHNOLOGY. 44(19). p.7635-7640
Author
Organization
Abstract
The catalytic properties of various metal nanoparticles have led to their use in environmental remediation. Our aim is to develop and apply an efficient bioremediation method based on in situ biosynthesis of bio-Pd nanoparticles and hydrogen. C. pasteurianum BC1 was used to reduce Pd(II) ions to form Pd nanoparticles (bio-Pd) that primarily precipitated on the cell wall and in the cytoplasm. C. pasteurianum BC1 cells, loaded with bio-Pd nanoparticle in the presence of glucose, were subsequently used to fermentatively produce hydrogen and to effectively catalyze the removal of soluble Cr(VI) via reductive transformation to insoluble Cr(III) species. Batch and aquifer microcosm experiments using C. pasteurianum BC1 cells loaded with bio-Pd showed efficient reductive Cr(VI) removal, while in control experiments with killed or viable but Pd-free bacterial cultures no reductive Cr(VI) removal was observed. Our results suggest a novel process where the in situ microbial production of hydrogen is directly coupled to the catalytic bio-Pd mediated reduction of chromate. This process offers significant advantages over the current groundwater treatment technologies that rely on introducing preformed catalytic nanoparticles into groundwater treatment zones and the costly addition of molecular hydrogen to above ground pump and treat systems.
Keywords
SHEWANELLA-ONEIDENSIS, SULFATE-REDUCING BACTERIA, CLOSTRIDIUM SP, REDUCTION, DECHLORINATION, CR(VI), REMEDIATION, BIOMASS, IRON

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MLA
Chidambaram, Dev, et al. “Concomitant Microbial Generation of Palladium Nanoparticles and Hydrogen to Immobilize Chromate.” ENVIRONMENTAL SCIENCE & TECHNOLOGY, vol. 44, no. 19, 2010, pp. 7635–40, doi:10.1021/es101559r.
APA
Chidambaram, D., Hennebel, T., Taghavi, S., Mast, J., Boon, N., Verstraete, W., … Fitts, J. P. (2010). Concomitant microbial generation of palladium nanoparticles and hydrogen to immobilize chromate. ENVIRONMENTAL SCIENCE & TECHNOLOGY, 44(19), 7635–7640. https://doi.org/10.1021/es101559r
Chicago author-date
Chidambaram, Dev, Tom Hennebel, Safiyh Taghavi, Jan Mast, Nico Boon, Willy Verstraete, Daniel van der Lelie, and Jeffrey P Fitts. 2010. “Concomitant Microbial Generation of Palladium Nanoparticles and Hydrogen to Immobilize Chromate.” ENVIRONMENTAL SCIENCE & TECHNOLOGY 44 (19): 7635–40. https://doi.org/10.1021/es101559r.
Chicago author-date (all authors)
Chidambaram, Dev, Tom Hennebel, Safiyh Taghavi, Jan Mast, Nico Boon, Willy Verstraete, Daniel van der Lelie, and Jeffrey P Fitts. 2010. “Concomitant Microbial Generation of Palladium Nanoparticles and Hydrogen to Immobilize Chromate.” ENVIRONMENTAL SCIENCE & TECHNOLOGY 44 (19): 7635–7640. doi:10.1021/es101559r.
Vancouver
1.
Chidambaram D, Hennebel T, Taghavi S, Mast J, Boon N, Verstraete W, et al. Concomitant microbial generation of palladium nanoparticles and hydrogen to immobilize chromate. ENVIRONMENTAL SCIENCE & TECHNOLOGY. 2010;44(19):7635–40.
IEEE
[1]
D. Chidambaram et al., “Concomitant microbial generation of palladium nanoparticles and hydrogen to immobilize chromate,” ENVIRONMENTAL SCIENCE & TECHNOLOGY, vol. 44, no. 19, pp. 7635–7640, 2010.
@article{1107919,
  abstract     = {{The catalytic properties of various metal nanoparticles have led to their use in environmental remediation. Our aim is to develop and apply an efficient bioremediation method based on in situ biosynthesis of bio-Pd nanoparticles and hydrogen. C. pasteurianum BC1 was used to reduce Pd(II) ions to form Pd nanoparticles (bio-Pd) that primarily precipitated on the cell wall and in the cytoplasm. C. pasteurianum BC1 cells, loaded with bio-Pd nanoparticle in the presence of glucose, were subsequently used to fermentatively produce hydrogen and to effectively catalyze the removal of soluble Cr(VI) via reductive transformation to insoluble Cr(III) species. Batch and aquifer microcosm experiments using C. pasteurianum BC1 cells loaded with bio-Pd showed efficient reductive Cr(VI) removal, while in control experiments with killed or viable but Pd-free bacterial cultures no reductive Cr(VI) removal was observed. Our results suggest a novel process where the in situ microbial production of hydrogen is directly coupled to the catalytic bio-Pd mediated reduction of chromate. This process offers significant advantages over the current groundwater treatment technologies that rely on introducing preformed catalytic nanoparticles into groundwater treatment zones and the costly addition of molecular hydrogen to above ground pump and treat systems.}},
  author       = {{Chidambaram, Dev and Hennebel, Tom and Taghavi, Safiyh and Mast, Jan and Boon, Nico and Verstraete, Willy and van der Lelie, Daniel and Fitts, Jeffrey P}},
  issn         = {{0013-936X}},
  journal      = {{ENVIRONMENTAL SCIENCE & TECHNOLOGY}},
  keywords     = {{SHEWANELLA-ONEIDENSIS,SULFATE-REDUCING BACTERIA,CLOSTRIDIUM SP,REDUCTION,DECHLORINATION,CR(VI),REMEDIATION,BIOMASS,IRON}},
  language     = {{eng}},
  number       = {{19}},
  pages        = {{7635--7640}},
  title        = {{Concomitant microbial generation of palladium nanoparticles and hydrogen to immobilize chromate}},
  url          = {{http://doi.org/10.1021/es101559r}},
  volume       = {{44}},
  year         = {{2010}},
}
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