A5061865695- Catalytic Processes in Materials Science
- Mesoporous Materials and Catalysis
- Catalysis and Oxidation Reactions
- Zeolite Catalysis and Synthesis
- Catalysis and Hydrodesulfurization Studies
- Electrospun Nanofibers in Biomedical Applications
- Advanced Photocatalysis Techniques
- Nanomaterials for catalytic reactions
- Conducting polymers and applications
- TiO2 Photocatalysis and Solar Cells
- Aerogels and thermal insulation
- Supercapacitor Materials and Fabrication
- Catalysts for Methane Reforming
- Layered Double Hydroxides Synthesis and Applications
- Fiber-reinforced polymer composites
- Electrocatalysts for Energy Conversion
- Gold and Silver Nanoparticles Synthesis and Applications
- Electron Spin Resonance Studies
- Adsorption and biosorption for pollutant removal
- Copper Interconnects and Reliability
- Silicon Nanostructures and Photoluminescence
- Advanced ceramic materials synthesis
- Geochemistry and Elemental Analysis
- Groundwater and Isotope Geochemistry
- Fluoride Effects and Removal
Université de Haute-Alsace
2015-2024
Centre National de la Recherche Scientifique
2014-2024
Université de Strasbourg
2015-2024
Institut de Sciences des Matériaux de Mulhouse
2011-2020
Université de Poitiers
2008-2012
Institut de Chimie des Milieux et des Matériaux de Poitiers
2009-2012
Albendazole (ABZ, anti-parasitic active pharmaceutical ingredient) is a crystalline low water-soluble drug, thus the dissolution rate in gastrointestinal fluids limited. Consequently, improvement of water solubility and ABZ implies great challenge for more efficient treatment hydatidosis. In this context, SBA-15 SBA-16 ordered mesoporous silica materials were synthetized loaded with ABZ. X-ray diffraction, FT-IR spectroscopy, nitrogen physisorption manometry, particle size distribution...
TiO<sub>2</sub>–SiO<sub>2</sub> composites with 44 wt% of anatase exhibit a better MO degradation rate than those fully crystallized anatase.
Catalytic nanofibers composed of La-Ce and Sr-La-Ce oxides were synthesized by the electrospinning method with 5 wt % Sr different La/Ce molar ratios. The materials obtained calcining electrospun polymer composite fibers studied for oxidative coupling methane. catalytic performance was compared analogous powder catalysts. SEM micrographs (La/Ce: 0.1, 0.2, 1, 3) showed nanostructures homogeneous uniform diameters (170–200 nm). In addition, XRD patterns revealed formation crystalline solid...
TiO2/SiO2 nanocomposites are synthesized and fully characterized after thermal stabilization at temperatures between 400 °C 800 °C. The control of the impregnation media is crucial to obtain satisfactory quality, i.e. presenting no segregation titania particles outside silica pore structure. Characterization shows that size volume decrease linearly with an increase in loading, remain close theoretical values calculated assuming formation a non-porous coating. Surface area remains unchanged...
As with all nanomaterials, characterization of the surface chemistry mesoporous silicon (PSi) is crucial for development in its diverse applications. Nuclear magnetic resonance (NMR) one most powerful methods to study but it currently underutilized PSi due low signal-to-noise ratios achieved this material which lead very long measurement times. Here we show that endogenous radicals exist thermally carbonized and demonstrate feasibility solid-state dynamic nuclear polarization (DNP) NMR...
The one pot synthesis of dual mesoporous titania (2.3 and 7.7 nm) has been achieved from a mixture fluorinated Pluronic surfactants. small large mesopore networks are templated, respectively, by fluorinated-rich liquid crystal Pluronic-rich crystal, which in equilibrium. After calcination at 350 °C, the amorphous walls transformed into semicrystalline anatase preserving structure. Results concerning photodegradation methyl orange using calcined photocatalysts highlight that kinetic rate...
Abstract Solids composed of TiO 2 nano‐crystallites (10–40 wt %) dispersed in an SBA‐15 matrix were synthesised and used as hydrodesulfurisation (HDS) active‐phase supports. Well‐dispersed polymolybdate species detected by Raman spectroscopy on all the CoMo‐based oxidic precursors. Undesirable bulk CoMoO 4 mixed oxide was also surface low‐TiO ‐content materials, which suggests enhancement Mo dispersion a result presence . After activation under H /H S, obtained catalysts tested HDS...
Amorphous mesostructured zirconia with high thermal stability and hydrothermal in boiling water has been obtained without addition of stabilizer.
A new method to produce functional surfaces on porous silicon allow long term use of the material in aqueous environments.
A simple and efficient route to prepare supported nanocrystalline oxides is presented. The synthesis procedure, i.e. in situ autocombustion of a glycine complex, allows the production nanocrystals porous matrix presenting larger pore size. An example successful formation 2-5 nm given for single oxide (Fe(2)O(3)), mixed-oxide structure (LaCoO(3) perovskite-type) nickel-doped oxide.
Using dual mesoporous titania as a support, due to the presence of intrinsic Brönsted acid sites, main approach 4,6-dimethylbenzothiophene (46DMDBT) hydrodesulfurization (HDS) becomes direct desulfurization (DDS) route through isomerization and dismutation reactions, instead hydrogenation (HYD) pathway usually observed with conventional promoted (by Ni or Co) MoS2/Al2O3 catalyst.
Safe drinking water is a necessity for every human being, but clean scarce and not easily available due to natural geochemical factors or industrial pollutant activity. Many issues involving quality could be greatly improved using clays as adsorbents. We highlight the first time, uptake of fluoride from by Laponite, synthetic hectorite clay, in raw modified state. A series batch adsorption experiments were carried out evaluate potential different parameters. The optimized parameters were:...