info:eu-repo/semantics/article
Development of PdCu structured catalysts based on ZrO2-CeO2 materials supported on cordierite monoliths for water remediation. Removal of hazardous oxyanions
Fecha
2021-08-24Registro en:
Peroni, María Belén; Navas, Marisa Belén; Bideberripe, Hernán Pablo; Barbero, Bibiana Patricia; Casella, Mónica Laura; et al.; Development of PdCu structured catalysts based on ZrO2-CeO2 materials supported on cordierite monoliths for water remediation. Removal of hazardous oxyanions; American Chemical Society; Industrial & Engineering Chemical Research; 60; 34; 24-8-2021; 12767–12775
0888-5885
CONICET Digital
CONICET
Autor
Peroni, María Belén
Navas, Marisa Belén
Bideberripe, Hernán Pablo
Barbero, Bibiana Patricia
Casella, Mónica Laura
Jaworski, María Angélica
Resumen
The elimination of hazardous oxyanions NO3−, NO2−, and BrO3− from synthetic and real water samples using novel PdCu/10ZrCe (10 wt % ZrO2 on CeO2) structured catalysts supported on cordierite monoliths was studied in order to avoid loss of the catalytic material during water treatment. The monoliths were coated with different suspensions of the 10ZrCe support. Particle sizes, suspension concentration of 10ZrCe, and pH effects were evaluated. The structured catalyst was tested in a fixed-bed reactor at different flow rates for the elimination of the selected anions. Good results in terms of activity and selectivity to the products of interest (SN2: 0.99 and SBr−:1) were obtained in synthetic water. The structured catalyst was reused three times, maintaining its activity and selectivity. It was evaluated in a real water sample but the activity was lower probably due to competition for active sites by different ions present in the sample. The structured catalyst prepared is promising for the development of a system for water remediation, based on PdCu/ZrO2−CeO2 materials.