RADIOCHEMISTRY. Département de Recherche Subatomique (DRS) Institut Pluridisciplinaire Hubert Curien UMR7178. Group director : Rémi Barillon
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1 RADIOCHEMISTRY Département de Recherche Subatomique (DRS) UMR7178 Group director : Rémi Barillon 11 permanents 3 PhD Nicolas Ludwig, 2 nd year Tamon Kusumoto, 2 nd year (Cotutelle with Kobe, Japan) Sylvia Georg, 1st year (permanent position as AI)
2 Two interdisciplinar thematics at the border of physics, chemistry and biochemistry Radiochemistry and environment Heavy metals and organic polluants speciation in solution at the mineral/solution interfase Chemistry of actinides and lanthanides in ionic liquid medium M. DeL Nero (CR2), M. Boltoeva (CR2), O. Courson (IR2), V. Mazan (IE2), C. Hoffmann (AI) S. Georg (AI & PhD), G. Fleury (PhD, Finished) Interaction ionizing radiations (ion beams) / matter Radiolisis of polymers and biomoleculs Dosimetry JM Jung (PR1), R. Barillon (PR1), Q. Raffy (MCF), P Peaupardin (IR2), C. Hoffmann(AI), C.Galindo (IR2), N.Ludwig (PhD), T.Kusumoto (PhD)
3 Chemistry of actinides and lanthanides in ionic liquid medium Ionic liquids : Efficient and green extraction Fundamental studies Design of news solvants and extractants moleculs Studies of complexation (kinetics and stability) Result modelisation Modelisation of the relation between structur/properties/eficiency Matter transfer modelisation Apply studies Treatment of waste to minimize releases (Radioactive elements (An,Ln, Cs, ) and heavy metals (Cd, Ni, Tl, ) Treatment of waste for valorisation (Radioactive elements (An,Ln, Th, ), heavy metals (Cd, Ni, Tl, ) and rare earth.
4 Chemistry of actinides and lanthanides in ionic liquid medium Ionic liquids : Extraction with ionic liquid : Analytical technics : UV-Vis / IR / RMN / IPC-MS Solution + metal metal Solution
5 Heavy metals and organic polluants speciation in solution at the mineral/solution interface Fundamental studies Describe at the molecular scale the mechanisms governing the fractionation of organic polluants at mineral-solution interfaces of soils Investigate the effect of this fractionation on the behavior of metals Natural soil systems : High complexity Identification of organic pollutants (Fulvic Acids) involved in the sorption of metals Model systems Mineral surfaces Al / Fe hydroxides Fulvic acids Extracted from natural soils Metals Cu, Zn, Cd, Pb / Lanthanides
![90_G2 #1 RT: 0.02 AV: 1 NL: 4.15E4 T: FTMS - p ESI Full ms [120.00-400.00] 250 100 200 80 60 40 20 150 100 50 0 385.](/docs-images/72/67278439/images/6-3.jpg "0360 385.0207 385.0724 385.0 385.1 m/z 385.1146 Supernatant 0 150 200 250 300 350 400 m/z 2.")
6 Relative Abundance Intensity Heavy metals and organic polluants speciation in solution at the mineral/solution interface 1. Batch experiments of FA sorption onto model mineral surfaces - Alumina / hematite / kaolinite - FAs extracted from a natural soils + Alumina / kaolinite nanoparticles Native FA solution Ultra-high resolution ESI(-)-FTMS PPH1_pH2.90_G2 #1 RT: 0.02 AV: 1 NL: 4.15E4 T: FTMS - p ESI Full ms [ ] m/z Supernatant m/z 2. Investigation of natural soil systems Soil samples developed on sandstone Core samples taken at La Petite-Pierre (Vosges du Nord), under beech and fir forests
7 Interaction ions beams / matter : Fundamental studies Understanding radiolysis mechanisms Radiolysis of water (yields measurments) Radiolysis of biomolecules (Amino acids/proteins) Radiolysis of polymers (CR39 : reference in dosimetry) Investigate the effects of the nature and the energy of the ion beam on the radiolysis Protons, Alpha particles and Heavy ions X-rays and Gamma-rays Dosimetry Fluorescence correlated dosimeter Fricke dosimeter (Solution) Modelisation of experimentals results Collaboration with RaMSeS Applications Radioprotection Radiobiology Hadrontherapy
8 Interaction ions beams / matter Development of specific irradiation set-up : Protons Air exctracted proton beam Liquid flow cell Another line is dedicated to solid samples irradiation
9 Interaction ions beams / matter On line measurments : liquids : UV and Fluo solids : IR Post-irradiation measurments : liquids : HPLC MS
10 CONCLUSION Interdisciplinar group working on societal thematics Advanced analysis technics common on differents thematics (UV / IR / Mass spectrometry / HPLC / ICP-MS ) Development of specific manipulation set-up or operating method
11 THANK YOU FOR YOUR ATTENTION October 2014
12 THANK YOU FOR YOUR ATTENTION November 2016
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