L2IA Research Activities

See below few exemples of recent studies in our group:

Liquid/liquid extraction Kinetics of extraction - theory and experiments (coll. with ILM, MSN, ILL)
- Kinetics → dynamics analysis
- Residence time at interface
- Ion transfer, aggregates formation
- SHG technique
- Correlation surface tension / SHG signal
- LL reflectivity / analysis

Large polarisable ions (+ coll. with Barcelone, with Lille)
- Dicarbollide: Aqueous self-aggregation properties of a new class of amphiphile
- Dicarbollide at interfaces
- POM at interfaces
- PBA NP dispersion

Liquid/Gas high specific surface for extraction: the foam (coll. with DEN/DTCD/LPAD)
- Ion extraction without organic effluents
- Development of specific surfactant extractant in stabilizing dry foam
- pH, IS, cation-anion correlation, how these parameters affects foam stability and drainage.
- Ion / ionic particle (small aggregation) competition in extraction
- Cs decontamination

Biomimetic extractant: amphiphilic peptide
- Micelle formation in both organic/aqueous biphasic system
- Selective extraction of metallic cations
- Extraction-aggregation correlation

Liquid/Liquid high specific surface for extraction : the microemulsion or lyotropic lamellar phase
- Highly hydrophilic and lipophilic amphiphile association
- Windsor III system, fish cut, thermodynamics of microemulsions with ions
- TBP : an extractant as a co-surfactant with variable amphiphilic behavior
- Amphiphilic properties of a diamide extractant (DMDBTDMA as a co-surfactant)
- Study of a mixture surfactant/extractant in a lyotropic lamellar phase
- Splitting of an extraction mechanism in 3 elementary equilibrium
- Oriented lamellar phase studied by IR spectroscopy

Liquid/Solid extraction by Krafft point: cation-cation affinity ?
- One step extraction without organic solvent – from solution to material?
- CP+-X- self-assembly : X- dependence
- Metallic selectivity and its influence on self aggregation