RT Journal Article
T1 Pesticide abatement using environmentally friendly nano zero valent particles as photo-Fenton catalyst
A1 Díez Sarabia, Aida Maria
A1 Moreira, Manuela M.
A1 Pazos Currás, Marta María
A1 Sanromán Braga, María Ángeles
A1 Albergaria, T.
A1 Delerue-Matos, C.
K1 2302 Bioquímica
AB Nano-zero valent iron particles (NZVI) have been used for the pesticide pirimicarb degradation under simulated solar radiation. These particles have been synthesized by extracts from agro-industrial residues, namely vineyard and blueberry pruning, black tea and algae, so they can be labelled as “green-NZVI”. The physico-chemicalproperties of these green-NZVI were compared to those of NZVI synthesized with NaBH4. The usage of agroindustrial residues as reducing agent not only provided better performant NZVI but also evade the usage of harmful reagents. Indeed, this process is not only within circular economy, and environmentally friendly, but also defeats the degradation performance of the widely reported photo-Fenton process with Fe2+ catalyst. 96.5 % pirimicarb degradation was achieved under simulated solar radiation within 15 min with 0.08 mM H2O2 and 0.16 mM NZVI synthesized with black tea extract. Further, the developed process was optimized in terms of reagents concentration and natural antioxidant extract used for NZVI synthesis, which demonstrated a strong effect on pirimicarb degradation due to the differences on natural phenolic compounds present on them. Thepirimicarb degradation pathway was analysed, confirming the successful pesticide degradation. In terms of H2O2 concentration, it can be reduced by its sequential addition in time. Under optimal conditions, even real effluents can be successfully degraded.
PB Separation and Purification Technology
SN 13835866
YR 2024
FD 2024-01
LK http://hdl.handle.net/11093/5650
UL http://hdl.handle.net/11093/5650
LA eng
NO Separation and Purification Technology, 336, 126179 (2024)
NO Agencia Estatal de Investigación | Ref. PDC2021-121394-I00
DS Investigo
RD 14-ene-2025