화학공학소재연구정보센터
학회 한국공업화학회
학술대회 2020년 가을 (10/28 ~ 10/30, 광주 김대중컨벤션센터(Kimdaejung Convention Center))
권호 24권 1호
발표분야 포스터-콜로이드·계면화학
제목 Hollow flower-like titanium ferrocyanide structure for the enhanced removal of cesium from water
초록 The selective removal of 137Cs from contaminated seawater or radioactive liquid waste remains a challenge due to the presence of high concentrations of competing ions. Here, we report the hollow flower-like titanium ferrocyanide (hf-TiFC) for the removal of 137Cs from water with enhanced Cs adsorption properties compared with conventional Cs adsorbents such as zeolites and crystalline silicotitanate (CST). hf-TiFC composed of 2-dimensional TiFC flakes shows much faster Cs adsorption kinetics than the granular form of TiFC (g-TiFC) due to the lack of resistance against intracrystalline diffusion of Cs and a maximum adsorption capacity (454.54 mg/g) 3-fold higher than that of g-TiFC because of the increased effective surface area of hf-TiFC. Moreover, hf-TiFC also has better Cs adsorption kinetics, capacity and selectivity of Cs than do well-known Cs adsorbents such as chabazite (CHA) and protonated CST (HCST).
저자 양희만, 박찬우, 김일국, 신영호, 윤인호
소속 한국원자력(연)
키워드 titanium ferrocyanide; flower-like; cesium
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