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

제113회 대한화학회 학술발표회, 총회 및 기기전시회 안내 Synthesis and Photocatalytic Acitivity of Ru Nanoparticles Supported on Silica Magnetic Microspheres

등록일
2014년 2월 13일 16시 47분 22초
접수번호
1157
발표코드
MAT.P-1047 이곳을 클릭하시면 발표코드에 대한 설명을 보실 수 있습니다.
발표시간
4월 16일 (수요일) 16:00~19:00
발표형식
포스터
발표분야
재료화학
저자 및
공동저자
AVVARU PRAVEEN KUMAR, 백민욱, 이용일*
창원대학교 화학과, Korea
Green chemistry, also called sustainable chemistry, is a philosophy of chemical research and engineering that encourages the design of products and processes that minimize the use and generation of hazardous substances. Green catalysis is a subchapter of green chemistry and probably the most important one. We here report the synthesis, characterization and photocatalytic performance of recoverable ruthenium (Ru) supported on silica coated magnetic microspheres (Fe3O4@SiO2@Ru). The superparamagnetic Fe3O4@SiO2 with well-defined core/shell nanostructure has been synthesized via in situ surface polymerization method. The negatively charged Ru nanoparticles have been effectively assembled onto the positively charged surface of the as-synthesized Fe3O4@SiO2 core/shell microspheres via electrostatic attraction. As-prepared Ru catalysts were characterized by transmission electron microscopy (TEM), scanning electron microscopy (SEM), powder X-ray diffraction (XRD) and Fourier Transform Infra Red (FT-IR) spectroscopy, thermogavimetric analysis (TGA), X-ray photoelectron spectroscopy (XPS) and vibrating sample magnetometry (VSM). The percentage of Ru in Fe3O4@Ru nanocatalysts is obtained by inductively coupled plasma atomic emission spectroscopy (ICP-AES). The synthesized supported Ru catalysts was successfully applied for photocatalytic activity on organic pollutants. The central Fe3O4 cores are superparamagnetic at room temperature with strong magnetic response to externally applied magnetic field, thus providing a convenient means for separating the catalyst from solution. Keywords: Green synthesis, Fe3O4@SiO2 microspheres, Ru nanoparticles, Catalytic applications.

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