Kinetics of Pd supported on swellable organically modified silica (SOMS) catalysts during aqueous phase hydrodechlorination of trichloroethylene
Loading...
Date
2021-05
Authors
Journal Title
Journal ISSN
Volume Title
Publisher
The Ohio State University
Abstract
The past few decades have seen a rise in concern regarding environmental issues prompting many
areas of research to find efficient means of breaking down hazardous chemicals used in
manufacturing and industrial centers. One such hazardous chemical, trichloroethylene (TCE) has
been a major concern due to its toxicity and pollution of drinking water sources such as
groundwater. Currently, hydrodechlorination (HDC) over noble metal-based catalysts is employed
in the conversion of TCE into benign products, such as ethane. However, in addition to producing
ethane, this conversion of TCE molecules also produces hydrochloric acid (HCl) as a byproduct,
which is known to deactivate noble metal catalysts. In order to circumvent this issue, our group
has been exploring a novel catalyst support known as SOMS (swellable organically modified
silica) which prevents deactivation of noble metal sites by HCl due to its hydrophobicity and
swellability. While kinetics for the HDC of TCE has been established in literature for many
conventional supports prior, only recently have the kinetics of the HDC of TCE been explored for
animated supports such as SOMS. However, the effect of particle size of noble metal particles
embedded within SOMS on the HDC of TCE has not yet been explored. This research project
investigates the effect of size of palladium (Pd) nanoparticle sites embedded within the SOMS
matrix on the kinetics of the HDC of TCE.
Description
Keywords
kinetics, hydrodechlorination, swellable organically modified silica, trichloroethylene, palladium