| 학회 | 한국공업화학회 |
| 학술대회 | 2019년 가을 (10/30 ~ 11/01, 제주국제컨벤션센터(ICC JEJU)) |
| 권호 | 23권 2호 |
| 발표분야 | 포스터_콜로이드·계면화학 |
| 제목 | cesium and strontium ion-exchange property of sulfur-encapsulated chabazite under high salt conditions |
| 초록 | We already reported that the encapsulation of elemental sulfur in the micropores of zeolites can remarkably increase the selectivity toward Cs. Although zeolites are well known adsorbents of various cationic elements including Sr and Cs, the Cesium and strontium ion-exchange property of sulfur encapsulated zeolite are not investigated. In this study, we determined Cs and Sr ion-exchange selectivity of sulfur-encapsulated chabazite to evaluate their effectiveness for the decontamination of radioactive Cs and Sr from water. Detailed Cs and Sr ion-exchange studies revealed that the ion-exchange isotherms and kinetics could be effectively described by the Langmuir isotherm model and the pseudo-second-ordermodel, respectively. Most importantly, the sulfur-encapsulated chabazite exhibited excellent selectivity for Cs and Sr in simulated groundwater with a high removal efficiency exceeding 99.1%, indicating that the excellent potential for practical application. |
| 저자 | 양희만1, 박찬우1, 김일국1, 윤인호1, 최민기2 |
| 소속 | 1한국원자력(연), 2한국과학기술원 |
| 키워드 | 황; 차바자이트; 세슘; 스트론튬 |
