Palladium and Gold Nanoparticles on Carbon Supports as Highly Efficient Catalysts for Effective Removal of Trichloroethylene

Authors

Kavita Meduri, Portland State University
Candice Stauffer, Portland State University
Wen Qian, University of Nebraska-LincolnFollow
Otto Zietz, Portland State University
Andrew Barnum, Portland State University
Graham O'Brien Johnson, Portland State UniversityFollow
Dimin Fan, Portland State University
Changwen Zhang, University of Jinan
Weixiao Ji, University of Jinan
Paul Tratnyek, Portland State UniversityFollow
Jun Jiao, Portland State UniversityFollow

Published In

Journal of Materials Research

Document Type

Citation

Publication Date

8-28-2018

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.

Description

© Materials Research Society 2018

Locate the Document

https://doi.org/10.1557/jmr.2018.212

DOI

10.1557/jmr.2018.212

Persistent Identifier

https://archives.pdx.edu/ds/psu/26985

Citation Details

Meduri, K., Stauffer, C., Qian, W., Zietz, O., Barnum, A., O’Brien Johnson, G., . . . Jiao, J. (2018). Palladium and gold nanoparticles on carbon supports as highly efficient catalysts for effective removal of trichloroethylene. Journal of Materials Research, 33(16), 2404-2413.