Prof. Dr.

Kerstin Hockmann

Research interests:

Redox cycling of iron and sulfur and their impact on element mobility (Sb, As and Cr)
Interactions between metal(loid)s and mineral surfaces (e.g. iron hydroxides and iron sulfides)
Speciation and mobility of toxic metal(loids) in contaminated soils and sediments
Speciation and behaviour of toxic metal(loids) in synthetic products, e.g. Sb migration from baby clothes into body liquids
Methods: XAS (S, Fe, Sb, As and Cr), HPLC-ICP-MS, SEM-EDX, Laser ablation ICP-MS

Stefan Peiffer, John Mohanraj, Kerstin Hockmann, Jörg Göttlicher, Mukundan Thelakkat, Bouchra Marouane: The Role of Reduced Surface Sulfur Species in the Removal of Se(VI) by Sulfidized Nano Zero-Valent Iron. In: Minerals, 16 (2026). - 68.
doi:10.3390/min16010068

Laura Wegner, E. D. Burton, Catherine McCammon, A. C. Scheinost, Britta Planer-Friedrich, Stefan Peiffer, Kerstin Hockmann: Ferrous iron oxidation in the presence of antimonate at neutral pH : Mutual effects on iron mineral products and antimony sequestration. In: Journal of Hazardous Materials, 488 (2025). - 137380.
doi:10.1016/j.jhazmat.2025.137380

Peter Stimmler, Martin Obst, Johannes Lehmann, Mathias Stein, Kerstin Hockmann, Mathias Göckede, Jörg Schaller: Reduced CO₂ Release from Arctic Soils Due to CO₂ Binding to Calcium Forming Aragonite. In: Environmental Science & Technology, 58 (2024). - S. 17695-17702.
doi:10.1021/acs.est.4c07496

Karel As, Stefan Peiffer, Peter Onyisi Uhuegbue, Prachi Joshi, Andreas Kappler, Bouchra Marouane, Kerstin Hockmann: Sulfate affinity controls phosphate sorption and the proto-transformation of schwertmannite. In: Chemical Geology, 653 (2024). - 122043.
doi:10.1016/j.chemgeo.2024.122043

Peter Stimmler, Martin Obst, Mathias Stein, Mathias Göckede, Kerstin Hockmann, Joerg Schaller: Silicon and calcium controls on iron and aluminum mobility in Arctic soils. In: Chemosphere, 335 (2023). - 139087.
doi:10.1016/j.chemosphere.2023.139087

Niloofar Karimian, Kerstin Hockmann, Britta Planer-Friedrich, Scott G. Johnston, Edward D. Burton: Antimonate Controls Manganese(II)-Induced Transformation of Birnessite at a Circumneutral pH. In: Environmental Science & Technology, 55 (2021). - S. 9854-9863.
doi:10.1021/acs.est.1c00916

Kerstin Hockmann, Niloofar Karimian, Sara Schlagenhauff, Britta Planer-Friedrich, Edward D. Burton: Impact of Antimony(V) on Iron(II)-Catalyzed Ferrihydrite Transformation Pathways : A Novel Mineral Switch for Feroxyhyte Formation. In: Environmental Science & Technology, 55 (2021). - S. 4954-4963.
doi:10.1021/acs.est.0c08660

Kerstin Hockmann, Britta Planer-Friedrich, Scott G. Johnston, Stefan Peiffer, Edward D. Burton: Antimony mobility in sulfidic systems : Coupling with sulfide-induced iron oxide transformations. In: Geochimica et Cosmochimica Acta, 282 (2020). - S. 276-296.
doi:10.1016/j.gca.2020.05.024