Environmental applications of zerovalent metals: Iron vs. Zinc

Paul G. Tratnyek, Alexandra J. Salter, James T. Nurmi, Vaishnavi Sarathy

Research output: Chapter in Book/Report/Conference proceedingConference contribution

20 Scopus citations

Abstract

The reactivity of particulate zero-valent metals in solution is affected by the metal type (e.g., Fe vs. Zn), particle size (nano vs. micro), surface conditions (passivation by coatings of oxides), and solution conditions (including the type and concentration of oxidants). Comparing the reactivity of various types of Fe0 and Zn0 with carbon tetrachloride (CCl4) shows that the intended effect of properties engineered to give enhanced reactivity can be obscured by effects of environmental factors. In this case, rates of CCl4 reduction by Zn0 are more strongly affected by solution chemistry than particle size or surface morphology. Under favorable conditions, however, Zn0 reduces CCl 4 more rapidly-and more completely-than Fe0, regardless of particle size. The suitability of nano-sized Zn0 for environmental remediation applications is uncertain.

Original languageEnglish (US)
Title of host publicationNanoscale Materials in Chemistry
Subtitle of host publicationEnvironmental Applications
PublisherAmerican Chemical Society
Pages165-178
Number of pages14
ISBN (Print)9780841225558
DOIs
StatePublished - Aug 6 2010

Publication series

NameACS Symposium Series
Volume1045
ISSN (Print)0097-6156
ISSN (Electronic)1947-5918

ASJC Scopus subject areas

  • Chemistry(all)
  • Chemical Engineering(all)

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  • Cite this

    Tratnyek, P. G., Salter, A. J., Nurmi, J. T., & Sarathy, V. (2010). Environmental applications of zerovalent metals: Iron vs. Zinc. In Nanoscale Materials in Chemistry: Environmental Applications (pp. 165-178). (ACS Symposium Series; Vol. 1045). American Chemical Society. https://doi.org/10.1021/bk-2010-1045.ch009