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

2022

New insights into U(VI) sorption onto montmorillonite from batch sorption and spectroscopic studies at increased ionic strength

Stockmann, M.; Fritsch, K.; Bok, F.; Marques Fernandes, M.; Baeyens, B.; Steudtner, R.; Müller, K.; Nebelung, C.; Brendler, V.; Stumpf, T.; Schmeide, K.


2021

Technetium immobilization by chukanovite and its oxidative transformation products: Neural network analysis of EXAFS spectra

Schmeide, K.; Roßberg, A.; Bok, F.; Shams Aldin Azzam, S.; Weiß, S.; Scheinost, A.


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.


Dimeric and Trimeric Uranyl(VI)–Citrate Complexes in Aqueous Solution

Kretzschmar, J.; Tsushima, S.; Lucks, C.; Jäckel, E.; Meyer, R.; Steudtner, R.; Müller, K.; Roßberg, A.; Schmeide, K.; Brendler, V.

Related 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.

Related publications


Signatures of Technetium Oxidation States: A New Approach

Bauters, S.; Scheinost, A.; Schmeide, K.; Weiß, S.; Dardenne, K.; Rothe, J.; Mayordomo, 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