A5074702926- Mesoporous Materials and Catalysis
- Aerogels and thermal insulation
- Adsorption and biosorption for pollutant removal
- Theoretical and Computational Physics
- Polyoxometalates: Synthesis and Applications
- Enzyme Catalysis and Immobilization
- Advanced Photocatalysis Techniques
- Silicone and Siloxane Chemistry
- Analytical chemistry methods development
- Catalysis and Oxidation Reactions
- Spectroscopy and Quantum Chemical Studies
- Nonlinear Dynamics and Pattern Formation
- Pigment Synthesis and Properties
- Gas Sensing Nanomaterials and Sensors
- Advanced Nanomaterials in Catalysis
- Analytical Chemistry and Chromatography
- Material Dynamics and Properties
- Nanomaterials for catalytic reactions
- Algal biology and biofuel production
- Electrochemical Analysis and Applications
- nanoparticles nucleation surface interactions
- Phase Equilibria and Thermodynamics
- Layered Double Hydroxides Synthesis and Applications
- Catalytic Processes in Materials Science
- Natural Fiber Reinforced Composites
American University of Beirut
2014-2023
American University
2011
Centre National de la Recherche Scientifique
2001-2005
Sorbonne Université
2005
Institut de Recherches sur la Catalyse et l'Environnement de Lyon
2003-2005
Collège de France
2005
Université Claude Bernard Lyon 1
2001-2004
Surface-functionalized silica aerogels and alcogels prepared<italic>via</italic>a two-step sol–gel process through the combination of different silicon precursors were used in adsorption methylene blue dye molecules from aqueous media.
Periodic precipitation of sparingly soluble salts yields parallel Liesegang bands in 1D whose spacings obey either one two known trends. The overwhelming trend is an increase spacing as we move away from the junction, while some systems display a decrease get further interface. latter much less common and revert law. Whereas direct (normal) law generally well-understood, has not been explicitly distinctly elucidated. In this paper, propose mechanism governed by adsorption diffusing CrO4(2−)...
Silica aerogels, dried by the CO2 supercritical method, were made from tetramethoxysilane (TMOS) and methyltrimethoxylsilane (MTMS) in different proportions to change of hydrophilic hydrophobic surface groups. The aerogel or properties related their textural structural characteristics. In particular, water adsorption isotherms recorded successive equilibrium with saturated aqueous metal salt solutions. They compared nitrogen isotherms. relative proportion Si−OH, Si−OCH3, Si−CH3 end groups...
Mesoporous silica aerogel/polyoxometalate hybrids were successfully synthesised under mild conditions, and investigated towards photocatalytic degradation of Rhodamine B Methylene Blue dye models in aqueous media ultraviolet irradiation. The materials characterised, the solid state, by various tools such as FTIR, TGA, powder XRD, order to gather information about their chemical structural properties. Moreover, UV-Vis, AAS, BET, SEM, EDX techniques used confirm polyoxometalates' loading...
Abstract Rate constants for a series of alcohols, ethers, and esters toward the sulfate radical (SO 4 − ) have been directly determined using laser photolysis set‐up in which was produced by photodissociation peroxodisulfate anions. The concentration monitored following its optical absorption means time resolved spectroscopy techniques. At room temperature rate were derived: methanol ((1.6 ± 0.2) × 10 7 M −1 s ); ethanol ((7.8 1.2) tert ‐butanol ((8.9 0.3) 5 diethyl ether ((1.8 0.1) 8 MTBE...
Phospholipid onion phases were investigated as biomimetic media for the synthesis of silica in a confined environment. Stable multilamellar nanovesicles incorporating sodium silicate solutions could be obtained. Upon aging, condensation occurs interlayer space while preserving initial organization. The hybrid structure consists an array apparently unconnected nanoparticles 20-30 A size range packed vesicular 50 space, suggesting that growth was efficiently controlled by its confinement lamellar