Turbostratic carbon supported palladium as an efficient catalyst for reductive purification of water from trichloroethylene

Emil Kowalewski; Małgorzata Zienkiewicz-Machnik; Dmytro Lisovytskiy; Kostiantyn Nikiforov; Krzysztof Matus; Anna Śrębowata; Jacinto Sá; Emil Kowalewski; Małgorzata Zienkiewicz-Machnik; Dmytro Lisovytskiy; Kostiantyn Nikiforov; Krzysztof Matus; Anna Śrębowata; Jacinto Sá

doi:10.3934/matersci.2017.6.1276

AIMS Materials Science

2017, Volume 4, Issue 6: 1276-1288. doi: 10.3934/matersci.2017.6.1276

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Turbostratic carbon supported palladium as an efficient catalyst for reductive purification of water from trichloroethylene

1.
Institute of Physical Chemistry, Polish Academy of Sciences, Kasprzaka 44/52, 01-224 Warsaw, Poland
2.
Institute of Engineering Materials and Biomaterials, Silesian University of Technology, Konarskiego 18A, 44-100 Gliwice, Poland
3.
Department of Chemistry, Ångström Laboratory, Uppsala University, Uppsala 75120, Sweden

Received: 11 September 2017 Accepted: 28 November 2017 Published: 01 December 2017

This work investigates the catalytic properties of turbostratic carbon supported Pd catalyst in hydrodechlorination of trichloroethylene (TCE HDC) in aqueous phase. 1.57 wt% Pd/C was thoroughly characterized by BET, TPHD, CO chemisorption, PXRD, STEM, XPS and used as the catalyst in removal of trichloroethylene from drinking water in batch and continuous-flow reactors. The studies showed that catalytic performance of Pd/C depended on the hydrophobicity and textural properties of carbon support, which influenced noble metal dispersion and increased catalyst tolerance against deactivation by chlorination. Palladium in the form of uniformly dispersed small (~3.5 nm) nanoparticles was found to be very active and stable in purification of water from TCE both in batch and continuous-flow operation.
- palladium catalyst,
- turbostratic carbon,
- batch reactor vs. continuous-flow reactions,
- water purification,
- hydrodechlorination
Citation: Emil Kowalewski, Małgorzata Zienkiewicz-Machnik, Dmytro Lisovytskiy, Kostiantyn Nikiforov, Krzysztof Matus, Anna Śrębowata, Jacinto Sá. Turbostratic carbon supported palladium as an efficient catalyst for reductive purification of water from trichloroethylene[J]. AIMS Materials Science, 2017, 4(6): 1276-1288. doi: 10.3934/matersci.2017.6.1276

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Abstract

This work investigates the catalytic properties of turbostratic carbon supported Pd catalyst in hydrodechlorination of trichloroethylene (TCE HDC) in aqueous phase. 1.57 wt% Pd/C was thoroughly characterized by BET, TPHD, CO chemisorption, PXRD, STEM, XPS and used as the catalyst in removal of trichloroethylene from drinking water in batch and continuous-flow reactors. The studies showed that catalytic performance of Pd/C depended on the hydrophobicity and textural properties of carbon support, which influenced noble metal dispersion and increased catalyst tolerance against deactivation by chlorination. Palladium in the form of uniformly dispersed small (~3.5 nm) nanoparticles was found to be very active and stable in purification of water from TCE both in batch and continuous-flow operation.

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