Lee, Yun-Sik Park, Bum Chul Lee, Dae Beom Min, Hyun-Gi Kim, Min-Suk Kim, Sung-Chul Won, Sung Ok Wee, June Chae, Eunji Sim, Cheolho Kim, Youngeun Kim, Jeong-Gyu Kim, Young Keun Cho, Kijong 2024-01-19T09:32:40Z 2024-01-19T09:32:40Z 2023-06-29 2023-05 0160-4120 https://pubs.kist.re.kr/handle/201004/113739 Arsenic (As)-contaminated soil inevitably exists in nature and has become a global challenge for a sustainable future. Current processes for As capture using natural and structurally engineered nanomaterials are neither scientifically nor economically viable. Here, we established a feasible strategy to enhance As-capture efficiency and ecosystem health by structurally reorganizing iron oxyhydroxide, a natural As stabilizer. We propose crystallization to reorganize FeOOH-acetate nanoplatelets (r-FAN), which is universal for either scalable chemical synthesis or reproduction from natural iron oxyhydroxide phases. The r-FAN with wide interlayer spacing immobilizes As species through a synergistic mechanism of electrostatic intercalation and surface chemisorption. The r-FAN rehabilitates the ecological fitness of As-contaminated artificial and mine soils, as manifested by the integrated bioassay results of collembolan and plants. Our findings will serve as a cornerstone for crystallization-based material engineering for sustainable environmental applications and for understanding the interactions between soil, nanoparticles, and contaminants. English Elsevier Ltd. Crystallization-based upcycling of iron oxyhydroxide for efficient arsenic capture in contaminated soils Article 10.1016/j.envint.2023.107963 1 Environment International, v.175 Environment International 175 Y scie scopus 001007503900001 2-s2.0-85159181272 Environmental Sciences Environmental Sciences & Ecology Article COLLEMBOLA Iron oxyhydroxide Nanomaterial Sustainable Crystallization Arsenic capture Soil amendments