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학술발표회초록보기

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  • 09월 08일 17시 이후 : 초록수정 불가능, 일정확인 및 검색만 가능

제116회 대한화학회 학술발표회, 총회 및 기기전시회 안내 Preparation of Polyethylenimine(PEI) modified silk sericin beads as effective hexavalent chromium removal biosorbent

등록일
2015년 9월 8일 14시 39분 26초
접수번호
1383
발표코드
POLY.P-78 이곳을 클릭하시면 발표코드에 대한 설명을 보실 수 있습니다.
발표시간
10월 16일 (금요일) 13:00~14:30
발표형식
포스터
발표분야
고분자화학
저자 및
공동저자
곽효원, 주지은, 신문주, 이기훈*
서울대학교 바이오시스템소재학부, Korea
Silk sericin can be used as a low cost adsorbent for organic pollutants and heavy metal removal from water. However, the adsorption capacities of the raw sericin for heavy metals are not very high since the contents of the surface functional groups are insufficient for heavy metal removal. Polyethylenimine (PEI) exhibits strong adsorption ability for heavy metals because of its large number of primary and secondary amine groups. In the present study, A chemically modified silk sericin beads was prepared using polyethylenimine (PEI) as a modification reagent for heavy metal removal. The sericin beads before and after modification were characterized by Fourier transformed infrared spectroscopy, X-ray photoelectron spectroscopy etc. The adsorption capacity of Cr(VI) by the modified sericin beads was investigated with various solution pH and temperature condition. From the results, the Cr (VI) removal capacity of PEI modified sericin beads was 365.38 (mg/g) which was much higher than that of pristine sericin beads (34.56 mg/g). The results herein revealed that the PEI modified sericin beads has high potential as a material for sorption and detoxification of Cr(VI) from aqueous solution.

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