Publications

† Equal contribution, * Corresponding author

2026

21.  Effect of Fe on Phosphate-based Geopolymer for Solidification of Spent Ion-exchange resin
Sehyun Cho and Jaehyuk Kang*
Journal of Nuclear Fuel Cycle and Waste Technology, 2026. - Accepted

20.  A Scenario-driven Stability and Radiological Dose Evaluation for Human Exposure Resulting from Spent Nuclear Fuel Storage Facility Beyond Design Basis Accident
Dongjin Lee, Kwangsoon Choi, Jaehyuk Kang, Hyojoo Kim, and Wooyong Um*
Nuclear Technology, 1-15, 2026.

2025

19.  Development and Evaluation of NiAl LDH-based Beads for I– Sorption under Aqueous Solution
Hyolee Kim, Jueun Kim, Dongjin Lee, Yerim Kim, Wooyong Um, and Jaehyuk Kang*
Journal of Nuclear Fuel Cycle and Waste Technology, 23(4), 471-489, 2025.

18.  Investigation of the iodate sorption mechanism by CoAl LDH through experiments and ab initio molecular dynamics simulations
Jaehyuk Kang, Jueun Kim, Byoungkwan Kim, Jaeeun Kang, Hyolee Kim, Sehyun Cho, Mal-Soon Lee*, and Wooyong Um*
Journal of Hazardous Materials, 500, 140307, 2025.

17.  Analysis of Co leaching in OPC waste form using computational fluid dynamic
Sehyun Cho, Jaehyuk Kang, and  Jongmin Yang*
Journal of the Korean Society of Visualization, 23(3), 117-126, 2025.

16.  Comparative adsorption studies of modified sulfonated styrene–divinylbenzene with cross-linked DVB for multiple radionuclides removal from radioactive wastewater
Haris Khan, Mumtaz Khan*, Mazhar Iqbal Zafar, Thaqal M. Alhuzaymi, Jaehyuk Kang, and Wooyong Um
International Journal of Environmental Science and Technology, 22, 7999-8024, 2025.

15.  Assessment of structural stability and leaching characteristics of phosphate-based geopolymer waste form containing radioactive spent ion exchange resins
Byoungkwan Kim, Younglim Shin, Solmoi Park, Brant Walkley, Seokyoung Oh, Jaehyuk Kang, and Wooyong Um*
Journal of Nuclear Materials, 607, 155671, 2025.

14.  Development of a Sulfidized Zerovalent Iron-Geopolymer Composite for the Reductive Immobilization of ReO4−
Chung-Seop Lee†, Jinmo Ahn†​, Jaehyuk Kang*, and Wooyong Um*
Journal of Environmental Management, 373, 123575, 2025.

2023

13.   Waste acceptance criteria testings of a phosphate-based geopolymer waste form to immobilize radioactive borate waste
Byoungkwan Kim, Jaehyuk Kang, Younglim Shin, and Wooyong Um*
Journal of Nuclear Materials, 586, 154671, 2023.

12.   Estimation of radionuclides leaching characteristics in different sized geopolymer waste forms with simulated spent ion-exchange resin
Younglim Shin, Byoungkwan Kim, Jaehyuk Kang, Hyun-min Ma, and Wooyong Um*
 Nuclear Engineering and Technology, 55(10), 3617-3627, 2023.

11.   Effect of Si/Al molar ratio and curing temperatures on the immobilization of radioactive borate waste in metakaolin-based geopolymer waste form
Byoungkwan Kim, Jaehyuk Kang, Younglim Shin, Tae-min Yeo, Jong Heo, and Wooyong Um*​
Journal of Hazardous Materials, 458, 131884, 2023.

2022

10.   Immobilization mechanism of radioactive borate waste in phosphate-based geopolymer waste forms
Byoungkwan Kim, Jaehyuk Kang, Younglim Shin, Tae-min Yeo, and Wooyong Um*
Cement and Concrete Research, 161, 106959, 2022.

09.   Kinetics and mechanism of rhenium-ethylenediaminetetraacetic acid (Re(IV)-EDTA) complex degradation; For 99Tc-EDTA degradation in the natural environment
Mumtaz Khan, Wooyong Um*, Sangsoo Han, Jaehyuk Kang, Abdul Jabbar, and Muhammad Adnan Iqbal
Environmental Technology & Innovation, 27, 102492, 2022.

08.   Simultaneous Removal of Cesium and Iodate using Prussian Blue Functionalized CoCr Layered Double Hydroxide (PB-LDH)
Jueun Kim, Jaehyuk Kang, and Wooyong Um*
Journal of Environmental Chemical Engineering, 10(3), 107477, 2022.

07.   Partitioning effects and corrosion characteristics of oxyapatite glass-ceramic wasteforms sequestering rare-earth elements
Miae Kim, Jaehyuk Kang, Jang-Hee Yoon, Sang-Geul Lee, Wooyong Um*, and Hyun Gyu Kim*
Nuclear Engineering and Technology, 54(3), 997-1002, 2022.

06.   Removal of iodine (I- and IO3-) from aqueous solutions using CoAl and NiAl layered double hydroxides
Jaehyuk Kang, Ferdinan Cintron-Colon, Hyojoo Kim, Jueun Kim, Tamas Varga, Yingge Du, Odeta Qafoku, Wooyong Um*, and Tatiana G. Levitskaia*​
Chemical Engineering Journal, 430, Part 1, 132788, 2022.

2021

05.  Development of geopolymer waste form for immobilization of radioactive borate waste
Byoungkwan Kim, Juhyeok Lee, Jaehyuk Kang, and Wooyong Um*
Journal of Hazardous Materials, 419, 126402, 2021.

04.  Chemical and Mechanical Sustainability of Silver Tellurite Glass Containing Radioactive Iodine-129
Cheong Won Lee, Jaehyuk Kang, Yong Kon Kwon, Wooyong Um, and Jong Heo*
Journal of Nuclear Fuel Cycle and Waste Technology, 19(3), 323-330, 2021.

2020

03.   Comparative Study Between Geopolymer and Cement Waste Forms for Solidification of Corrosive Sludge
Juhyeok Lee, Byoungkwan Kim, Jaehyuk Kang, Jaeeun Kang, Won-Seok Kim, and Wooyong Um*​
Journal of Nuclear Fuel Cycle and Waste Technology, 18(4), 465-479, 2020.

02.   Evaluation of materials for iodine and technetium immobilization through sorption and redox-driven processes
Carolyn I. Pearce*, Elsa A. Cordova, Whitney L. Garcia, Sarah A. Saslow, Kirk J. Cantrell, Joseph W. Morad, Odeta Qafoku, Josef Matyàš, Andrew E. Plymale, Sayandev  Chatterjee, Jaehyuk Kang, Ferdinan Cintron Colon, Tatiana G. Levitskaia, Mark J. Rigali, Jim E. Szecsody, Steve M. Heald, Mahalingam Balasubramanian, Shuao Wang, Daniel T. Sun, Wendy L. Queen, Ranko Bontchev, Robert C. Moore, and Vicky L. Freedman
Science of The Total Environment, 716, 136167, 2020.

01.   Nanostructured MgFe and CoCr layered double hydroxides for removal and sequestration of iodine anions
Jaehyuk Kang, Tatiana G. Levitskaia*​, Sangsu Park, Jueun Kim, Tamas Varga, and Wooyong Um*
Chemical Engineering Journal, 380, 122408, 2020.