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학술발표회초록보기

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제114회 대한화학회 학술발표회, 총회 및 기기전시회 안내 Assembly of metal and functional polymers to fluorinated ultrafiltration (UF) membranes for anti-fouling and heavy metal removal

등록일
2014년 8월 28일 15시 21분 55초
접수번호
1080
발표코드
MAT.P-1114 이곳을 클릭하시면 발표코드에 대한 설명을 보실 수 있습니다.
발표시간
10월 15일 (수요일) 16:00~19:00
발표형식
포스터
발표분야
재료화학
저자 및
공동저자
박성용, 곽승엽*
서울대학교 재료공학부, Korea
Ultrafiltration membrane obtains high quality purified water through relatively easy and simple process than traditional water treatment methods such as sand filtration, coagulation and so on. However, practical use of UF membrane is limited because of occurrence of membrane fouling by undesirable deposition of retained organic or inorganic materials to membrane and penetration of toxic heavy metal ions due to its relatively large pore size. Thus, we developed functionalized fluorinated UF membranes with fouling resistance and heavy metal removal by surface modification with various functional materials, e.g. antibacterial silver nanoparticle (Ag NP), positively charged branched polyethylene imine (b-PEI), heavy metal ion chelatable hyperbranched polyamidoamine (HPAMAM). The effects of introducing Ag NPs and b-PEI to polyvinylidene fluoride (PVDF) membrane were enhanced anti-biofouling and inhibited inorganic fouling, respectively. The assembly of HPAMAM to polytetrafluoroethylene (PTFE) membrane was applied to removal heavy metal ions from contaminated water. As expected, the prepared membranes showed desired properties such as antifouling and heavy metal removal. These make them tremendously attractive in applications ranging from high-efficient membrane to eco-friendly water purification system.

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