Personne
Sami Rtimi
Cette personne n’est plus à l’EPFL
Publications associées (109)
Quantification of the local magnetized nanotube domains accelerating the photocatalytic removal of the emerging pollutant tetracycline
Henrik Moodysson Rønnow, Juan Kiwi, Ivica Zivkovic, Sami Rtimi, Jiajie Yu
( )Evidence is presented for the enhanced photodegradation of tetracycline (TC) by AgxO/FeOx/ZnO nanotubes (NTs) compared to AgxO/ZnO nanotubes under low-intensity solar light irradiation. A higher amount of the local magnetic domains with random orientati ...
ELSEVIER SCIENCE BV2019Flower-like magnetized photocatalysts accelerating an emerging pollutant removal under indoor visible light and related phenomena
César Pulgarin, Juan Kiwi, Sami Rtimi, Minoo Karbasi
This study presents the first evidence for FeOx intra-gap states on Bi2WO6- magnetized materials enhancing the Norfloxacin (NFX) degradation with respect to Bi2WO6 within acceptable times under indoor visible light (< 5 mW/cm(2)). The kinetically faster ph ...
ELSEVIER SCIENCE SA2019Magnetically separable TiO2/FeOx/POM accelerating the photocatalytic removal of the emerging endocrine disruptor: 2,4-dichlorophenol
This study presents the magnetically separable TiO2/FeOx microstructure decorated with poly-oxo-tungstate (POM) leading to the endocrine disruptor 2,4-dichlorophenol (2,4-DCP) under low intensity solar light. The fastest 2,4-DCP degradation kinetics was ob ...
ELSEVIER SCIENCE BV2019Deciphering the Mechanisms of Bacterial Inactivation on HiPIMS Sputtered CuxO-FeOx-PET Surfaces: From Light Absorption to Catalytic Bacterial Death
Sami Rtimi, Adrien Alexis Paul Chauvet
The production of nontoxic, affordable, and efficient antibacterial surfaces is key to the well-being of our societies. In this aim, antibacterial thin films have been prepared using earth-abundant metals deposited using high-power impulse magnetron sputte ...
2019Evidence for a dual mechanism in the TiO2/CuxO photocatalyst during the degradation of sulfamethazine under solar or visible light: Critical issues
César Pulgarin, Juan Kiwi, Sami Rtimi, Jiajie Yu
This study presents the photocatalytic degradation of sulfamethazine (SMT) on TiO2/CuxO nanotubes (NTs) by a differentiated mechanism under low intensity solar light and indoor visible light irradiation. In the presence of TiO2/CuxO nanotubes, the SMT-degr ...
ELSEVIER SCIENCE SA2019Photocatalytic degradation of binary and ternary mixtures of antibiotics: reactive species investigation in pilot scale
The present study investigates the photocatalytic degradation of three quinolone antibiotics (i.e., Flumequine (FLU), Oxolinic Acid (OA) and Nalidixic Acid (NA)) in mono-, binary and ternary compound systems. The closed-loop step photo-reactor and TiO2 imp ...
INST CHEMICAL ENGINEERS2019Monitoring the energy of the metal ion-content plasma-assisted deposition and its implication for bacterial inactivation
Cu-polyester (Cu-PES) was sputtered by high power impulse magnetron sputtering (HIPIMS) and by low energy direct current magnetron sputtering (DCMS). The total amount and distribution of the Ar+, Cu+ and Cu2+ ions were determined as well as the bacterial i ...
ELSEVIER SCIENCE BV2019Synergism between non-thermal plasma and photocatalysis: Implicationsin the post discharge of ozone at a pilot scale in a catalytic fixed-bed reactor
This study focuses on Butyraldehyde (C4H8O) degradation using catalytic ozonation oriented to the optimization of non-thermal plasma/photocatalytic coupled processes. After the first oxidation by non-thermal plasma coupled photocatalytic processes, a secon ...
ELSEVIER SCIENCE BV2019Advances in catalytic/photocatalytic bacterial inactivation by nano Ag and Cu coated surfaces and medical devices
The design, synthesis, fundamentals and evaluation of 2D/3D antimicrobial surfaces are addressed in detail in the current review. Recent advances in the antimicrobial mechanism, kinetics and properties of Ag, Cu and Ag-Cu surfaces in the dark and under lig ...
ELSEVIER SCIENCE BV2019Femtosecond Spectroscopy of Au Hot-Electron Injection into TiO2: Evidence for Au/TiO(2 )Plasmon Photocatalysis by Bactericidal Au Ions and Related Phenomena
In the present work, we provide evidence for visible light irradiation of the Au/TiO2 nanoparticles' surface plasmon resonance band (SPR) leading to electron injection from the Au nanoparticles to the conduction band of TiO2. The Au/TiO2 SPR band is shown ...
2019