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  • 09월 06일 15시 이후 : 초록수정 불가능, 일정확인 및 검색만 가능

제112회 대한화학회 학술발표회, 총회 및 기기전시회 안내 Synthesizing colloidal stable zero-valent iron nanoparticles with polymers for rapid nitrate reduction

등록일
2013년 9월 5일 17시 06분 08초
접수번호
1456
발표코드
ENVR.P-1219 이곳을 클릭하시면 발표코드에 대한 설명을 보실 수 있습니다.
발표시간
10월 16일 (수요일) 16:00~19:00
발표형식
포스터
발표분야
환경에너지
저자 및
공동저자
이나라, 이우진1,*
한국과학기술원(KAIST) 건설및환경공학과, Korea
1한국과학기술원(KAIST) 건설 및 환경공학과, Korea
This study examines the effect of 2 common polymers on the size, zeta potential, colloidal stability and their reactivity to nitrate reduction of zero valent iron (nZVI). The polymers are poly(1-vinylpyrrolidone-co-vinyl acetate)(PVPVA) and polyethylene glycol(PEG) known as biodegradable and non-toxic materials. Pre-grafting method, synthesizing nZVI by sodium borohydride reduction of iron and polymer mixture solution, is applied and investigated. PVPVA and PEG coated nZVIs are dispersed and stable than bare nZVI and PVPVA is more stable than PEG because of difference in molecular weight and length of structure. Both synthesized nZVIs have ability to reduce nitrate into ammonium with 86.89 % maxium nitrate removal efficiency. However surplus coating materials on the surface inhibit the contact of nitrate since limited surface of nZVIs. These results could be implacable for in-situ nitrate remediation by injecting polymer-stabilized nZVI coated by PVPVA and PEG.

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