ENHANCED CATALYTIC REDUCTION OF P-NITROPHENOL BY NANO ZEROVALENT IRON - SUPPORTED METAL CATALYSTS
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Date
2021-07-08
Authors
Tokazhanov, Galym
Han, Seunghee
Lee, Woojin
Journal Title
Journal ISSN
Volume Title
Publisher
Elsevier B.V.
Abstract
Nano-sized zerovalent iron (NZVI) - supported metal catalysts were synthesized to characterize their reactivity for the reductive degradation of p-nitrophenol (PNP). Among the tested monometallic catalysts using metal promoters, Zn/NZVI showed the highest reactivity with complete reduction of PNP in 5 min (k = 0.0263 s−1). The addition of Pd accelerated the degradation kinetics of PNP with complete reduction in 1 min (k = 0.095 s−1) but promoter's presence on bimetallic catalyst surfaces simply decreased their reactivity. A proper Pd amount (1.5 wt% Pd/NZVI) showed the highest degradation rate (k = 0.248 s−1), while after its content increased to 10 wt% the rate was reduced by 5.8 times.
Description
Keywords
Research Subject Categories::TECHNOLOGY, Type of access: Open Access, Iron supported bimetallic catalysts, Nano-sized iron support, P-nitrophenol degradation, Pd promoter
Citation
Tokazhanov, G., Han, S., & Lee, W. (2021). Enhanced catalytic reduction of p-nitrophenol by nano zerovalent iron - supported metal catalysts. Catalysis Communications, 158, 106337. https://doi.org/10.1016/j.catcom.2021.10633