Please use this identifier to cite or link to this item:
https://hdl.handle.net/10216/106735
Full metadata record
DC Field | Value | Language |
---|---|---|
dc.creator | Maria José Lima | |
dc.creator | M. Enis Leblebic | |
dc.creator | Madalena M. Dias | |
dc.creator | José Carlos B. Lopes | |
dc.creator | Cláudia G. Silva | |
dc.creator | Adrián M. T. Silva | |
dc.creator | Joaquim Luís Faria | |
dc.date.accessioned | 2022-09-10T00:34:28Z | - |
dc.date.available | 2022-09-10T00:34:28Z | - |
dc.date.issued | 2014 | |
dc.identifier.issn | 0944-1344 | |
dc.identifier.other | sigarra:105907 | |
dc.identifier.uri | https://hdl.handle.net/10216/106735 | - |
dc.description.abstract | The degradation of ciprofloxacin was studied in aqueous solutions by using a continuous flow homogeneous photo-Fenton process under simulated solar light. The effect of different operating conditions on the degradation of ciprofloxacin was investigated by changing the hydrogen peroxide (0-2.50 mM) and iron(II) sulphate (0-10 mg Fe L-1) concentrations, as well as the pH (2.8-10), irradiance (0-750 W m(-2)) and residence time (0.13-3.4 min) of the process. As expected, the highest catalytic activity in steady state conditions was achieved at acidic pH (2.8), namely 85 % of ciprofloxacin conversion, when maintaining the other variables constant (i.e. 2.0 mg L-1 of iron(II), 2.50 mM of hydrogen peroxide, 1.8 min of residence time and 500 W m(-2) of irradiance). Additionally, magnetite magnetic nanoparticles (ca. 20 nm of average particle size) were synthesized, characterized and tested as a possible catalyst for this reaction. In this case, the highest catalytic activity was achieved at natural pH, namely a 55 % average conversion of ciprofloxacin in 1.8 min of residence time and under 500 W m(-2). Some of the photocatalytic activity was attributed to Fe2+ leaching from the magnetic nanoparticles to the solution. | |
dc.language.iso | eng | |
dc.relation | info:eu-repo/grantAgreement/FCT - Fundação para a Ciência e a Tecnologia/Projetos Estratégicos/PEst-C/EQB/LA0020/2013/PROJECTO ESTRATÉGICO - LA 20 - 2013-2014/LA 20 | |
dc.rights | restrictedAccess | |
dc.subject | Ciências Tecnológicas, Ciências da engenharia e tecnologias | |
dc.subject | Technological sciences, Engineering and technology | |
dc.title | Continuous flow photo-Fenton treatment of ciprofloxacin in aqueous solutions using homogeneous and magnetically recoverable catalysts | |
dc.type | Artigo em Revista Científica Internacional | |
dc.contributor.uporto | Faculdade de Engenharia | |
dc.identifier.doi | 10.1007/s11356-014-2515-6 | |
dc.identifier.authenticus | P-009-VR3 | |
dc.subject.fos | Ciências da engenharia e tecnologias | |
dc.subject.fos | Engineering and technology | |
Appears in Collections: | FEUP - Artigo em Revista Científica Internacional |
Files in This Item:
File | Description | Size | Format | |
---|---|---|---|---|
105907.pdf Restricted Access | 563.54 kB | Adobe PDF | Request a copy from the Author(s) |
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.