| 학회 |
한국공업화학회 |
| 학술대회 |
2016년 봄 (05/02 ~ 05/04, 여수 엑스포 컨벤션) |
| 권호 |
20권 1호 |
| 발표분야 |
콜로이드계면화학_포스터 |
| 제목 |
Desorption of cesium from montmorillonite and vermiculite interlayers by surfactant intercalation |
| 초록 |
The importance of efficient cesium desorption from clay minerals has been increasingly recognized due to specific adsorption of radioactive cesium on clays, which inhibits successful remediation of cesium contaminated soils. Cesium ions are irreversibly adsorbed on clays by stable inner-sphere complex, thus it is difficult to remove cesium. Among clay minerals, a montmorillonite has the highest cesium adsorption capacity and cesium ions are adsorbed on interlayer. Vermiculite is expansible and has high cesium adsorption selectivity through frayed edge site. Hence, We studied cesium desorption from contaminated clay by intercalation of cationic surfactant in montmorillonite and vermiculite interlayer. The cationic surfactant, dodecyltrimethylammonium bromide (DTAB), showed adsorption on two clay and efficient desorption of cesium ion by exchange with trimethyl ammonium head group of DTAB. The intercalated surfactants were removed by decomposition reaction with hydrogen peroxide. |
| 저자 |
김보현1, 박찬우2, 서범경2, 문제권2, 이근우2, 박소진1
|
| 소속 |
1충남대, 2한국원자력(연) |
| 키워드 |
Cesium; Clay; surfactant intercalation
|
| E-Mail |
|
