Contact

Dr. Katja Schmeide

k.schmeideAthzdr.de
Phone: +49 351 260 2436
+49 351 260 2513

Personal web page of Katja Schmeide

Scientific/Professional career

  • Since 1996:
    Research Associate at the Helmholtz-Zentrum Dresden-Rossendorf, Institute of Resource Ecology
  • 1995-1996:
    Master of Business Administration at the City University of Seattle, USA, European Programs in Dresden. Master thesis: "Analysis of the organizational structure of areas related to materials management of a middle-sized company of the chemical industry, including an analysis of material and information flow and its optimization".
  • 1992-1995:
    PhD at the Technische Universität Dresden / Technische Universität Clausthal. PhD thesis: "Study of the radical co- and terpolymerization of acceptor-, donor- and neutral monomers".
  • 1989-1992:
    Mikroelektronik und Technologie Gesellschaft mbH, Dresden
  • 1984-1989:
    TU Bergakademie Freiberg, Diploma in chemistry

Research work

  • Redox chemistry of actinides (U, Np, Pu) and fission products (Tc) in the presence of natural organic matter or minerals
  • Complexation of actinides with organic ligands (humic and fulvic acids, small organic molecules) and their effect on actinide sorption and transport in geological systems
  • Retention of radionuclides on clay rock, buffer material, cementitious material and oxides
  • Calixarenes as organic extraction agents for actinides and lanthanides

Projects

Publications

2020

Trimeric uranyl(VI)–citrate forms Na+, Ca2+, and La3+ sandwich complexes in aqueous solution

Kretzschmar, J.; Tsushima, S.; Drobot, B.; Steudtner, R.; Schmeide, K.; Stumpf, T.


Uranium and neptunium retention mechanisms in Gallionella ferruginea / ferrihydrite systems for remediation purposes

Krawczyk-Bärsch, E.; Scheinost, A. C.; Roßberg, A.; Müller, K.; Lehrich, J.; Bok, F.; Hallbeck, L.; Schmeide, K.


Signatures of Technetium Oxidation States: A New Approach

Bauters, S.; Scheinost, A.; Schmeide, K.; Weiß, S.; Dardenne, K.; Rothe, J.; Mayordomo Herranz, N.; Steudtner, R.; Stumpf, T.; Abram, U.; Butorin, S.; Kvashnina, K.


2019

U(VI) sorption on Ca-bentonite at (hyper)alkaline conditions – Spectroscopic investigations of retention mechanisms

Philipp, T.; Shams Aldin Azzam, S.; Rossberg, A.; Huittinen, N.; Schmeide, K.; Stumpf, T.


Cm(III) retention by calcium silicate hydrate (C-S-H) gel and secondary alteration phases in carbonate solutions with high ionic strength: A site-selective TRLFS study

Wolter, J.-M.; Schmeide, K.; Huittinen, N. M.; Stumpf, T.


Multidentate extracting agents based on calix[4]arene scaffold – UVI/EuIII separation studies

Bauer, A.; Jäschke, A.; Shams Aldin Azzam, S.; Glasneck, F.; Ullmann, S.; Kersting, B.; Brendler, V.; Schmeide, K.; Stumpf, T.


Stability of U(VI) doped calcium silicate hydrate gel in repository-relevant brines studied by leaching experiments and spectroscopy

Wolter, J.-M.; Schmeide, K.; Weiss, S.; Bok, F.; Brendler, V.; Stumpf, T.


2018

Uranium(VI) complexes with a calix[4]arene-based 8-hydroxyquinoline ligand: Thermodynamic and structural characterization based on calorimetry, spectroscopy, and liquid-liquid extraction

Bauer, A.; Jäschke, A.; Schöne, S.; Barthen, R.; März, J.; Schmeide, K.; Patzschke, M.; Kersting, B.; Fahmy, K.; Oertel, J.; Brendler, V.; Stumpf, T.


Selenium(IV) sorption onto γ-Al2O3: a consistent description of the surface speciation by spectroscopy and thermodynamic modeling

Mayordomo, N.; Foerstendorf, H.; Lützenkirchen, J.; Heim, K.; Weiss, S.; Alonso, U.; Missana, T.; Schmeide, K.; Jordan, N.


2015

Measurement and modelling of reactive transport in geological barriers for nuclear waste containment

Xiong, Q.; Joseph, C.; Schmeide, K.; Jivkov, A. P.


2014

Interaction of U(VI) with Äspö diorite: A batch and in situ ATR FT-IR sorption study

Schmeide, K.; Gürtler, S.; Müller, K.; Steudtner, R.; Joseph, C.; Bok, F.; Brendler, V.


2013

Spectroscopic study of americium(III) complexes with nitrogen containing organic model ligands

Raditzky, B.; Sachs, S.; Schmeide, K.; Barkleit, A.; Geipel, G.; Bernhard, G.


Diffusion of U(VI) in Opalinus Clay: Influence of temperature and humic acid

Joseph, C.; van Loon, L. R.; Jakob, A.; Steudtner, R.; Schmeide, K.; Sachs, S.; Bernhard, G.


Sorption of U(VI) onto Opalinus Clay: Effects of pH and humic acid

Joseph, C.; Stockmann, M.; Schmeide, K.; Sachs, S.; Brendler, V.; Bernhard, G.


2012

Uranyl(VI) Complexation by Sulfonate Ligands: A Relativistic Density Functional and TRLFS Study

Kremleva, A.; Zhang, Y.; Shor, A. M.; Krüger, S.; Joseph, C.; Raditzky, B.; Schmeide, K.; Sachs, S.; Bernhard, G.; Rösch, N.


Np(V) reduction by humic acid: Contribution of reduced sulfur functionalities to the redox behavior of humic acid

Schmeide, K.; Sachs, S.; Bernhard, G.


2011

Ternary uranium(VI) carbonato humate complex studied by cryo-TRLFS

Steudtner, R.; Sachs, S.; Schmeide, K.; Brendler, V.; Bernhard, G.


Sorption of uranium(VI) onto Opalinus Clay in the absence and presence of humic acid in Opalinus Clay pore water

Joseph, C.; Schmeide, K.; Sachs, S.; Brendler, V.; Geipel, G.; Bernhard, G.


Binary and Ternary Uranium(VI) Humate Complexes Studied by Attenuated Total Reflection Fourier-transform Infrared Spectroscopy

Steudtner, R.; Müller, K.; Schmeide, K.; Sachs, S.; Bernhard, G.


Luminescence properties of uranium(VI) citrate and uranium(VI) oxalate species and their application for the determination of complex formation constants

Günther, A.; Steudtner, R.; Schmeide, K.; Bernhard, G.


2010

Sorption of Np(V) and Np(IV) onto kaolinite: Effects of pH, ionic strength, carbonate and humic acid

Schmeide, K.; Bernhard, G.


Interaction of uranium(VI) with nitrogen containing model ligands studied by laser-induced fluorescence spectroscopy

Raditzky, B.; Schmeide, K.; Sachs, S.; Geipel, G.; Bernhard, G.


2009

Redox stability of neptunium(V) and neptunium(IV) in the presence of humic substances of varying functionality

Schmeide, K.; Bernhard, G.


2008

The relationship of monodentate and bidentate coordinated uranium(VI) sulfate in aqueous solution

Hennig, C.; Ikeda, A.; Schmeide, K.; Brendler, V.; Moll, H.; Tsushima, S.; Scheinost, A. C.; Skanthakumar, S.; Wilson, R.; Soderholm, L.; Servaes, K.; Görrler-Walrand, C.; van Deun, R.


2007

EXAFS investigation of U(VI), U(IV) and Th(IV) sulfato complexes in aqueous solution

Hennig, C.; Schmeide, K.; Brendler, V.; Moll, H.; Tsushima, S.; Scheinost, A.

  • Inorganic Chemistry 46(2007)15, 5882-5892
  • Poster
    Actinide XAS 2006, 18.-20.09.2006, Karlsruhe, Germany
  • Contribution to proceedings
    Actinide XAS 2006, 18.-20.09.2006, Karlsruhe, Germany
    Speciation Techniques and Facilities for Radioactive Materials at Synchrotron Light Sources: OECD, 978-92-64-99006-7, 219-224

2006

Plutonium(III) complexation by humic substances studied by X-ray absorption fine structure spectroscopy

Schmeide, K.; Reich, T.; Sachs, S.; Bernhard, G.

  • Inorganica Chimica Acta 359(2006)1, 237-242

2005

EXAFS Study on the Neptunium(V) Complexation by Various Humic Acids under Neutral pH Conditions

Sachs, S.; Schmeide, K.; Reich, T.; Brendler, V.; Heise, K. H.; Bernhard, G.

  • Radiochimica Acta 93(2005), 17-25

Neptunium(IV) complexation by humic substances studied by X-ray absorption fine structure spectroscopy

Schmeide, K.; Reich, T.; Sachs, S.; Brendler, V.; Heise, K. H.; Bernhard, G.

  • Radiochimica Acta 93(2005), 187-196

2004

Uranium(VI) separation from aqueous solution by calix[6]arene modified textiles

Schmeide, K.; Heise, K.-H.; Bernhard, G.; Keil, D.; Jansen, K.; Praschak, D.

  • Journal of Radioanalytical and Nuclear Chemistry 261(2004)1, 61-67

2003

Interaction of uranium(VI) with various modified and unmodified natural and synthetic humic substances studied by EXAFS and FTIR spectroscopy

Schmeide, K.; Sachs, S.; Bubner, M.; Reich, T.; Heise, K. H.; Bernhard, G.

  • Inorganica Chimica Acta 351, 133-140 (2003)

2002

Humic Colloid-Borne Migration of Uranium in Sand Columns

Artinger, R.; Rabung, T.; Kim, J. I.; Sachs, S.; Schmeide, K.; Heise, K. H.; Bernhard, G.; Nitsche, H.

  • Journal of Contaminant Hydrology 58 (2002) 1-12.

Carbon-13 NMR Spectroscopic Studies on Chemically Modified and Unmodified Synthetic and Natural Humic Acids

Sachs, S.; Bubner, M.; Schmeide, K.; Choppin, G. R.; Heise, K. H.; Bernhard, G.

  • Talanta, 57, 999-1009 (2002)

2000

Investigation of Humic Acid Complexation Behavior with Uranyl Ions Using Modified Synthetic and Natural Humic Acids

Pompe, S.; Schmeide, K.; Bubner, M.; Geipel, G.; Heise, K.-H.; Bernhard, G.; Nitsche, H.

  • Radiochimica Acta 88 (2000) 553-558

Uranium(VI) Sorption onto Phyllite and Selected Minerals in the Presence of Humic Acid

Schmeide, K.; Pompe, S.; Bubner, M.; Heise, K. H.; Bernhard, G.; Nitsche, H.

  • Radiochimica Acta 88, 723-728 (2000)

1998

The influence of charge-transfer complexes on the copolymerization behavior of cyclic maleic acid derivatives with donor monomers

Schmidt-Naake, G.; Drache, M.; Leonhardt, K.

  • Macromolecular Chemistry and Physics 199(1998)3, 353-361


Contact

Dr. Katja Schmeide

k.schmeideAthzdr.de
Phone: +49 351 260 2436
+49 351 260 2513