RT journal article
T1 Enhancement of Iron-Based Photo-Driven Processes by the Presence of Catechol Moieties
A1 Moreno Andrés, Javier
A1 Vallés, Iván
A1 García-Negueroles, Paula
A1 Santos-Juanes, Lucas
A1 Arques, Antonio
A2 Tecnologías del Medio Ambiente
K1 phenolic moieties
K1 photo-Fenton
K1 persulfate
K1 emerging contaminants
K1 Fe-binding ligands
K1 iron chelates
AB Photo-induced Advanced Oxidation Processes (AOPs) using H2O2 or S2O82- as radical precursors were assessed for the abatement of six different contaminants of emerging concern (CECs). In order to increase the efficiency of these AOPs at a wider pH range, the catechol organic functional compound was studied as a potential assistant in photo-driven iron-based processes. Different salinity regimes were also studied (in terms of Cl- concentration), namely low salt water (1 g center dot L-1) or a salt-water (30 g center dot L-1) matrix. Results obtained revealed that the presence of catechol could efficiently assist the photo-Fenton system and partly promote the photo-induced S2O82- system, which was highly dependent on salinity. Regarding the behavior of individual CECs, the photo-Fenton reaction was able to enhance the degradation of all six CECs, meanwhile the S2O82--based process showed a moderate enhancement for acetaminophen, amoxicillin or clofibric acid. Finally, a response-surface methodology was employed to determine the effect of pH and catechol concentration on the different photo-driven processes. Catechol was removed during the degradation process. According to the results obtained, the presence of catechol in organic macromolecules can bring some advantages in water treatment for either freshwater (wastewater) or seawater (maritime or aquaculture industry).
PB MDPI
SN 2073-4344
YR 2021
FD 2021-03
LK http://hdl.handle.net/10498/24781
UL http://hdl.handle.net/10498/24781
LA eng
DS Repositorio Institucional de la Universidad de Cádiz
RD 08-nov-2026