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학술발표회초록보기

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제114회 대한화학회 학술발표회, 총회 및 기기전시회 안내 Simultaneous Determination of Heavy Metal Ions by a Chemically Modified Electrode with Comprising Graphene

등록일
2014년 8월 28일 15시 19분 57초
접수번호
1078
발표코드
ELEC.P-1236 이곳을 클릭하시면 발표코드에 대한 설명을 보실 수 있습니다.
발표시간
10월 15일 (수요일) 16:00~19:00
발표형식
포스터
발표분야
전기화학
저자 및
공동저자
백석호, 심윤보*, 김동민, 박민욱
부산대학교 화학과, Korea
Functionalized polyterthiophenes comprising graphene were synthesized in a solution containing graphene and functionalized tertiophene monomer. Interaction between functional groups of graphene oxide (GO) and the monomers in an aprotic nonaqueous solution offers the formation of uniform and stable composited layer. Morphologies and compositions of the polymer materials were confirmed using SEM, FE-TEM, and XPS analyses, which show homogeneous and functionalized poly(terthiophenes-GO) composition. We observed that the heavy metal ions (Zn(II), Cd(II), Pb(II), Cu(II), and Hg(II)) can be deposited on the composited polymer layer via the complex formation reaction. Thus, stripping voltammetry was performed for the analysis of the ions in very low concentration by scanning the potential from -1.5 to +0.5 V after preconcentration. The results show the distinct anodic stripping peak of each ion at -1.1, -0.75, -0.49, -0.05, +0.15V, corresponding to Zn(II), Cd(II), Pb(II), Cu(II), and Hg(II) ions, showing detection limit of ~1ppb.

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