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학술발표회초록보기

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  • 02월 20일 17시 이후 : 초록수정 불가능, 일정확인 및 검색만 가능

제113회 대한화학회 학술발표회, 총회 및 기기전시회 Hydrogen Bond-Triggered, Surfactant Free Synthesis of Mesoporous, Silica-Polymer Nanostructured Materials for the Remidation of Environmental Pollutants [동우화인켐㈜ 포스터상]

등록일
2014년 2월 13일 11시 40분 52초
접수번호
0754
발표코드
MAT.P-980 이곳을 클릭하시면 발표코드에 대한 설명을 보실 수 있습니다.
발표시간
4월 16일 (수요일) 16:00~19:00
발표형식
포스터
발표분야
재료화학
저자 및
공동저자
Md. Shahinul Islam, 이하진*, 최원산1,*
한국기초과학지원연구원 전주센터, Korea
1한밭대학교 응용화학과, Korea
We have developed an alkali-assisted facile strategy for the synthesis of two types of mesoporous silica nanoparticles (MSNPs) i.e. rambutan-like MSNPs (R-MSNPs) and hollow MSNPs (H-MSNPs) using a surfactant-free strategy at room temperature. A cationic polymer (Polyethyleneimine; PEI) with various molecular weight (2-750 kd) were used. The particle sizes were uniform (~150 nm) with easily tunable surface structures by varying the loading volume ratio of Si/PEI (1:1 to 1:5), reaction time, etc. Both types of MSNPs have a high specific surface area (up to 1025 m2/g) with large pore volumes (17-38 nm). We investigated the removal of pollutants toward possible future use in environmental remediation applications. For example, exhibited promising performances for the removal of heavy metal with high adsorption capacity (qe), e.g. for Pb = 343.304 mg/g; Hg =289.2644 mg/g and As =75.075 mg/g. In addition, synthesized materials have been applied for the efficient disposal of waste water containing bulky pollutants- like methyl orange (MO) with a high absorption rate (>95%) and for removals of toxic microcystin-YR (100μg/L) over 97%. Additionally, high loading capacity of gold-NPs offered excellent catalytic activities for the reduction of nitrophenol.

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