화학공학소재연구정보센터
학회 한국공업화학회
학술대회 2014년 가을 (11/12 ~ 11/14, 엑스코(대구))
권호 18권 2호
발표분야 환경에너지-포스터
제목 Silane grafted chitosan in the remediation of aquatic environment contaminated with As(V)
초록 The trimethoxy-octylsilaneis grafted with chitosan under the inert atmosphere in acetic acid-ethanol solvent mixture. The grafted solid provide additional silane functionality along with the enhanced settling capacity makes material easy separable. The material is characterized by the SEM-EDX and FT-IR analysis. The materials are further employed in the remediation of aqueous solution contaminated with As(V) under the batch reactor operations. Batch studies show thatthe material possesses extremely high percent removal of As(V) comparing to the bare chitosan within the wide pH range i.e., pH 3 -10. The concentration dependence data is utilized to model Langmuir and Freundlich adsorption isotherms. Moreover, the kinetic data is fitted well to the pseudo-second-order rate equations; hence, the equilibriumsorption capacity is estimated.
저자 Lalhmunsiama1, 정현훈1, Lalchhingpuii2, Diwakar Tiwari2, 이승목1
소속 1가톨릭관동대, 2Mizoram Univ.
키워드 Arsenic; SEM-EDX; Langmuir; Chitosan
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