A5016627359- Advanced Photocatalysis Techniques
- Copper-based nanomaterials and applications
- TiO2 Photocatalysis and Solar Cells
- Advanced Nanomaterials in Catalysis
- ZnO doping and properties
- Gold and Silver Nanoparticles Synthesis and Applications
- Ammonia Synthesis and Nitrogen Reduction
- Gas Sensing Nanomaterials and Sensors
- Polymer Surface Interaction Studies
- Nanomaterials for catalytic reactions
- Electrocatalysts for Energy Conversion
- Nanocluster Synthesis and Applications
- Chalcogenide Semiconductor Thin Films
- Catalysis and Hydrodesulfurization Studies
- Perovskite Materials and Applications
- Covalent Organic Framework Applications
- Polyoxometalates: Synthesis and Applications
- Antimicrobial agents and applications
- Ga2O3 and related materials
- Nanoparticles: synthesis and applications
- Graphene research and applications
- Graphene and Nanomaterials Applications
- Advancements in Battery Materials
Centre National de la Recherche Scientifique
2016-2020
Institute for Scientific and Technological Research
2016-2020
Université Paris-Saclay
2016-2020
Institut de Chimie
2020
Laboratoire de Chimie Physique
2016-2019
Université Paris-Sud
2016-2019
Laboratoire de Physique des Interfaces et des Couches Minces
2019
École Polytechnique
2019
Laboratoire de Chimie des Polymères Organiques
2018
Ag and CuO nanoparticles (NPs) synthesized on the surface of commercial TiO2 (P25) by radiolytic reduction were characterized diffuse reflectance spectroscopy (DRS), transmission electron microscopy (TEM), high-angle annular dark-field scanning (HAADF-STEM), energy-dispersive X-ray (EDS), photoelectron (XPS), absorption (XAS). In case modification with silver copper, results from HAADF-STEM, EDS, XPS, XAS show that Ag@CuO (large cores decorated small clusters CuO) obtained TiO2–P25. The...
Abstract Here for the first time design and optimization are presented of a three‐component Au/TiO 2 –gC 3 N 4 nanocomposite photocatalyst able to efficiently produce H from water using very low amounts sacrificial agents under visible light irradiation. This enhanced photocatalytic behavior compared Au/gC materials is result synergetic effects due high quality assembly interface between three components. optimized nanoscale characterized by simultaneous favorable nanoheterojunction...
Small gold nanoparticles (Au-NPs) were used to modify the surface of titanium dioxide as visible-light absorbers and thermal redox active centers. Au-NPs synthesized on commercial TiO2 (P25) by reduction with tetrakis(hydroxymethyl)phosphonium chloride. The Au/P25 composites characterized different techniques including X-ray diffraction (XRD), high-resolution transmission electron microscopy (HRTEM), diffuse reflectance spectroscopy (DRS), photoelectron (XPS). Time-resolved microwave...
Octahedral anatase particles (OAP, with eight equivalent {101} facets) and decahedral (DAP, two additional {001} were modified nanoparticles of noble metals (Au, Ag, Cu). The titania morphology, expressed by the presence different arrangements exposed crystal facets, played a key role in photocatalytic properties metal-modified faceted titania. In UV/vis systems, two-faceted configuration DAP was more favorable for reaction efficiency than single-faceted OAP because an efficient charge...
Conjugated polymer polypyrrole nanostructures modified with bimetallic (Pt–Ni) nanoparticles are very active for hydrogen generation and a synergetic effect is obtained by alloying Pt Ni.
Heterojunctions of small CuO nanoclusters (synthesized by radiolysis) with TiO2 (commercial P25) induced a photocatalytic activity under visible light irradiation in wide range wavelengths due to the narrow bandgap around 1.7 eV. The optical, chemical, and electrical properties these composite nanomaterials were studied. bare modified TiO2–P25 studied for water purification (photooxidation organic compounds such as phenol 2-propanol) hydrogen generation irradiation. Time resolved microwave...
The photocatalytic disinfection (PCD) properties of TiO2 have attracted attention in the research communities because produced reactive oxygen species (ROS) allow destruction different types microbes, such as fungi, bacteria, viruses, algae, unicellular organisms, etc. on surfaces, water, and air. However, requires UV irradiation to produce ROS, which limits its photoactivity indoor environments. Surface-modified with small Ag CuO nanoclusters a core–shell structure exhibits antifungal under...
Virtually transparent photocatalytic multilayer films composed of TiO2 nanoparticles and polyelectrolytes were built on model surfaces using layer-by-layer assembly investigated as nanoporous coatings. Formic acid (HCOOH) Escherichia coli used models for the degradation gaseous pollutants studying antibacterial properties. Positively charged coassembled with negatively poly(sodium 4-styrenesulfonate) (NaPSS) which leads to highly nanoscale coatings in content particles is controlled mainly...