Enhanced catalytic reduction of p-nitrophenol by nano zerovalent iron - supported metal catalysts
Tokazhanov G. Han S. Lee W.
October 2021Elsevier B.V.
Catalysis Communications
2021#158
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 promoters 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.
Iron supported bimetallic catalysts , Nano-sized iron support , P-nitrophenol degradation , Pd promoter
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Department of Civil and Environment Engineering, School of Engineering and Digital Sciences, Nazarbayev University, Nur-Sultan, 010000, Kazakhstan
Green Energy and Environmental and Laboratory, National Laboratory Astana, Nazarbayev University, Nur-Sultan, 010000, Kazakhstan
School of Earth Sciences and Environmental Engineering, Gwangju Institute of Science and Technology, Gwangju, 500-712, South Korea
Department of Civil and Environment Engineering
Green Energy and Environmental and Laboratory
School of Earth Sciences and Environmental Engineering
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