Go to:
Logótipo
Você está em: Start > Publications > View > Insights into solar TiO2-assisted photocatalytic oxidation of two antibiotics employed in aquatic animal production, oxolinic acid and oxytetracycline
Map of Premises
Principal
Publication

Insights into solar TiO2-assisted photocatalytic oxidation of two antibiotics employed in aquatic animal production, oxolinic acid and oxytetracycline

Title
Insights into solar TiO2-assisted photocatalytic oxidation of two antibiotics employed in aquatic animal production, oxolinic acid and oxytetracycline
Type
Article in International Scientific Journal
Year
2013
Authors
João H. O. S. Pereira
(Author)
Other
The person does not belong to the institution. The person does not belong to the institution. The person does not belong to the institution. Without AUTHENTICUS Without ORCID
Ana C. Reis
(Author)
Other
The person does not belong to the institution. The person does not belong to the institution. The person does not belong to the institution. Without AUTHENTICUS Without ORCID
Daniel Queirós
(Author)
FEUP
View Personal Page You do not have permissions to view the institutional email. Search for Participant Publications Without AUTHENTICUS Without ORCID
Olga C. Nunes
(Author)
FEUP
View Personal Page You do not have permissions to view the institutional email. Search for Participant Publications View Authenticus page View ORCID page
Maria T. Borges
(Author)
FCUP
View Personal Page You do not have permissions to view the institutional email. Search for Participant Publications View Authenticus page View ORCID page
Vítor J. P. Vilar
(Author)
FEUP
View Personal Page You do not have permissions to view the institutional email. Search for Participant Publications View Authenticus page View ORCID page
Rui A. R. Boaventura
(Author)
FEUP
View Personal Page You do not have permissions to view the institutional email. Search for Participant Publications View Authenticus page View ORCID page
Journal
Vol. 463 No. OCT 1 2013
Pages: 274-283
ISSN: 0048-9697
Publisher: Elsevier
Indexing
Scientific classification
FOS: Natural sciences > Earth and related Environmental sciences
CORDIS: Natural sciences > Environmental science
Other information
Authenticus ID: P-006-6PA
Abstract (EN): In this study, solar driven TiO2-assisted heterogeneous photocatalytic experiments in a pilot-plant with compound parabolic collectors (CPCs) were carried out to study the degradation of two authorized veterinary antibiotics with particular relevance in finfish aquaculture, oxolinic acid (OXA) and oxytetracycline (OTC), using pure solutions of individual or mixed antibiotics. Firstly, the influence of natural solar photolysis was assessed for each antibiotic. Secondly, photocatalytic degradation kinetic rate constants for individual and mixed antibiotics were compared, using a catalyst load of 0.5 g L-1 and an initial pH around 75. Thirdly, for individually photocatalytic-treated OXA and OTC in the same conditions, the growth inhibition of Escherichia coli DSM 1103 was followed, and the mineralization extent was assessed by the residual dissolved organic carbon (DOC), low-molecular-weight carboxylate anions and inorganic ions concentration. Finally, the effect of inorganic ions, such as chlorides, sulfates, nitrates, phosphates, ammonium and bicarbonates, on the photocatalyric degradation of individual solutions of OXA and OTC was also evaluated and the formation of different reactive oxygen species were probed using selective scavengers. The removal profiles of each antibiotic, both as single component or in mixture were similar, being necessary 25 kJ L-1 of solar UV energy to fully remove them, and 18 kJuv L-1 to achieve 73% and 81% mineralization, for OXA and OTC, respectively. The remaining organic carbon content was mainly due to low-molecular-weight carboxylate anions. After complete removal of the antibiotics, the remaining degradation by-products no longer showed antibacterial activity. Also, 10% and 55% of the nitrogen content of each antibiotic was converted to ammonium, while no conversion to nitrite or nitrate was detected. The presence of phosphates hindered considerably the removal of both antibiotics, whereas the presence of other inorganic ions did not substantially altered the antibiotics photocatalytic degradation kinetics.
Language: English
Type (Professor's evaluation): Scientific
Contact: vilar@fe.up.pt
No. of pages: 10
Documents
We could not find any documents associated to the publication with allowed access.
Related Publications

Of the same scientific areas

IAEA RER9153-2101099 - Project final report (2022)
Technical Report
Maria De Lurdes Dinis
Ecologia Industrial (2010)
Educational Publication
Belmira A. F. Neto
A influência dos Ventos Locais no aumento das concentrações de Ozono Superficial na cidade do Porto (2004)
Poster in a National Conference
M. C. Mesquita; Maria da Conceição Alvim Ferraz; M. Isabel Ferreira; Joaquim Góis
Um Porto de Árvores (2006)
Book
Paulo Araújo; Maria Pires de Carvalho; Manuela D. L. Ramos

See all (42)

Of the same journal

The prediction of PAHs bioavailability in soils using chemical methods: State of the art and future challenges (2014)
Another Publication in an International Scientific Journal
Cachada, A; Pereira, R; Ferreira da Silva, EF; Duarte, AC
The last frontier: Coupling technological developments with scientific challenges to improve hazard assessment of deep-sea mining (2018)
Another Publication in an International Scientific Journal
Santos, MM; Jorge, PAS; Coimbra, J; Vale, C; Caetano, M; Bastos, L; Iglesias, I; Guimarães, L; Reis Henriques, MA; Luis Oliva Teles; Vieira, MN; Raimundo, J; Pinheiro, M; Nogueira, V; Pereira, R; Neuparth, T; Ribeiro, MC; E. Pereira da Silva; Castro, LFC
Tannin-based coagulants: Current development and prospects on synthesis and uses (2022)
Another Publication in an International Scientific Journal
Tomasi, IT; Machado, CA; Boaventura, RAR; Cidália Botelho; Santos, SCR
Siderophores and metallophores: Metal complexation weapons to fight environmental pollution (2024)
Another Publication in an International Scientific Journal
Gomes, AFR; Almeida, MC; Emilia Sousa; Resende, DISP
Risk assessment of urban soils contamination: The particular case of polycyclic aromatic hydrocarbons (2016)
Another Publication in an International Scientific Journal
Cachada, A; Ferreira da Silva, EF; Duarte, AC; Ruth Pereira

See all (268)

Recommend this page Top
Copyright 1996-2025 © Faculdade de Medicina Dentária da Universidade do Porto  I Terms and Conditions  I Acessibility  I Index A-Z
Page created on: 2025-08-10 at 21:30:57 | Privacy Policy | Personal Data Protection Policy | Whistleblowing | Electronic Yellow Book