| 학회 |
한국공업화학회 |
| 학술대회 |
2019년 봄 (05/01 ~ 05/03, 부산 벡스코(BEXCO)) |
| 권호 |
23권 1호 |
| 발표분야 |
환경·에너지_포스터 |
| 제목 |
Clay separation from cesium-contaminated soil using magnetic nanoparticles coated with polyethylenimine |
| 초록 |
In this study, we developed a clay separation method for cesium-contaminated soil using polyethyleneimine (PEI)-coated magnetic nanoparticles. It is reported that radioactive cesium tends to be adsorbed on the clay minerals by ion exchange. Thus, the separation of clay minerals from soil is the key issue in remediating cesium-contaminated soil. Magnetic separation is a simple method that has been used for the contaminated soil volume reduction. Since the clay minerals have negatively charged surface, Fe3O4 nanoparticles can be modified with cationic charged different agents to improve the separation efficiency. PEI, which is known for its high density of positive charge, was introduced onto the surface of Fe3O4 nanoparticles to bring in cationic charge on the Fe3O4–PEI nanocomposites. These functional nanocomposites were applied to separate clay from soil particles and showed the better performance than naked magnetic nanoparticles in separation efficiency. |
| 저자 |
김일국, 김준현, 김성만, 박찬우, 양희만, 윤인호
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| 소속 |
한국원자력(연) |
| 키워드 |
Cesium; Clay; Magnetic separation; Polyethyleneimine
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| E-Mail |
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