• Sorption studies using diverse radionuclide sorbents under macro-, micro-, and spectroscopic-scale characterization

• Investigation of sorption behavior, ion-exchange pathways, reconstruction effect, and redox-coupled processes in aqueous system

• Assessment of sorbent stability, reaction mechanisms, and radionuclide retention efficiency under geochemically relevant conditions

​(Ref.: Kang, 2020 & 2022.) 

• AIMD simulations applied to investigate interfacial structures, transient speciation, and proton-transfer behavior of hazardous radionuclides within hydrated or layered environments

• DFT-based analyses performed to determine sorption geometries, reaction pathways, and charge redistribution (e.g., Bader charge) associated with radionuclide–material interactions

• MD-EXAFS, radial distribution functions, and coordination-number evaluations utilized to validate atomic-scale mechanisms and to interpret experimental spectra for diverse radionuclide systems under repository-relevant conditions

​(Ref.: Kang, 2025.) 

• Development and optimization of cement- and geopolymer-based waste forms for stabilizing diverse radioactive wastes

• Evaluation of microstructural evolution, mechanical integrity, and long-term durability of waste forms

• Quantification of radionuclide diffusivity, leaching behavior, and immobilization mechanisms within waste forms

​(Ref.: Lee, 2025.)