Abstract
The work was aimed to investigate the catalytic properties of Pd- containing ZSM-5 zeolites in hydrodechlorination of trichloroethylene (TCE HDC) in aqueous phase. Conventional purely microporous zeolite ZSM-5 and its mesostructured analogue obtained by alkaline leaching were used as the supports for palladium moieties. The resulting materials were subjected to chemical analysis, XRD characterization, CO chemisorption, and spectroscopic investigation (XPS and FTIR) and, then, used as the catalysts in removal of trichloroethylene from drinking water. The studies have shown clearly that catalytic performance of palladium loaded materials depended on acidic and textural properties of zeolites, which influenced both noble metal dispersion and Pd0/Pd2+ ratio. In a series of the zeolite catalysts the best results were obtained for palladium deposited on desilicated form of ZSM-5. Palladium in the form of uniformly dispersed species, containing large amount of Pd0 species was found to be significantly active in TCE HDC.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
