Palladium and gold nanoparticles on carbon supports as highly efficient catalysts for effective removal of trichloroethylene

Kavita Meduri, Candice Stauffer, Wen Qian, Otto Zietz, Andrew Barnum, Graham O’Brien Johnson, Dimin Fan, Weixiao Ji, Changwen Zhang, Paul Tratnyek, Jun Jiao

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

Palladium (Pd) and gold (Au) nanoparticles (NPs) hybridized on two types of carbon supports, graphene and granular activated carbon (GAC), were shown to be promising catalysts for the sustainable hydrodehalogenation of aqueous trichloroethylene (TCE). These catalysts are capable of degrading TCE more rapidly than commercial Pd-on-GAC catalysts. The catalysts were synthesized at room temperature without the use of any environmentally unfriendly chemicals. Pd was chosen for its catalytic potency to break down TCE, while Au acts as a strong promoter of the catalytic activity of Pd. The results indicate that both graphene and GAC are favorable supports for the NPs due to high surface-to-volume ratios, unique surface properties, and the prevention of NP aggregation. The properties of NP catalysts were characterized using electron microscopy and spectroscopy techniques. The TCE degradation results indicate that the GAC-supported catalysts have a higher rate of TCE removal than the commercial Pd-on-GAC catalyst, and the degradation rate is greatly increased when using graphene-supported samples.

Original languageEnglish (US)
Pages (from-to)1-10
Number of pages10
JournalJournal of Materials Research
DOIs
StateAccepted/In press - Jul 17 2018
Externally publishedYes

Fingerprint

trichloroethylene
Trichloroethylene
Palladium
Catalyst supports
Gold
palladium
Carbon
Activated carbon
activated carbon
gold
Nanoparticles
catalysts
nanoparticles
Catalysts
Graphite
carbon
Graphene
graphene
Degradation
degradation

Keywords

  • catalytic
  • gold
  • palladium

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering

Cite this

Meduri, K., Stauffer, C., Qian, W., Zietz, O., Barnum, A., O’Brien Johnson, G., ... Jiao, J. (Accepted/In press). Palladium and gold nanoparticles on carbon supports as highly efficient catalysts for effective removal of trichloroethylene. Journal of Materials Research, 1-10. https://doi.org/10.1557/jmr.2018.212

Palladium and gold nanoparticles on carbon supports as highly efficient catalysts for effective removal of trichloroethylene. / Meduri, Kavita; Stauffer, Candice; Qian, Wen; Zietz, Otto; Barnum, Andrew; O’Brien Johnson, Graham; Fan, Dimin; Ji, Weixiao; Zhang, Changwen; Tratnyek, Paul; Jiao, Jun.

In: Journal of Materials Research, 17.07.2018, p. 1-10.

Research output: Contribution to journalArticle

Meduri, Kavita ; Stauffer, Candice ; Qian, Wen ; Zietz, Otto ; Barnum, Andrew ; O’Brien Johnson, Graham ; Fan, Dimin ; Ji, Weixiao ; Zhang, Changwen ; Tratnyek, Paul ; Jiao, Jun. / Palladium and gold nanoparticles on carbon supports as highly efficient catalysts for effective removal of trichloroethylene. In: Journal of Materials Research. 2018 ; pp. 1-10.
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