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대한화학회 제105회 학술발표회 및 총회 Synthesis of Gold Nanostructures Using a Detergent and Their Catalytic Activity

등록일
2010년 2월 10일 20시 41분 28초
접수번호
0091
발표코드
39P178포 이곳을 클릭하시면 발표코드에 대한 설명을 보실 수 있습니다.
발표시간
금 <발표Ⅳ>
발표형식
포스터
발표분야
재료화학
저자 및
공동저자
Thathan Premkumar, 김성호, K. E. Geckeler1
광주과학기술원 신소재공학과, Korea
1광주과학기술원 신소재공학과,나노바이오전자재료공학과, Korea
A simple method for the synthesis of gold nanostructure via the reaction of an aqueous solution of a gold salt, the potassium tetrachloroaurate(III), with a detergent at room temperature was developed. The as-prepared gold nanoparticles were characterized by UV-vis, UV-vis-NIR spectroscopy, transmission electron microscopy, and atomic force microscopy. It was found that the shape of the gold nanostructures can be manipulated by changing the reaction conditions such as the concentration of the reactants as well as the temperature. Further, the gold nanostructures showed a catalytic activity for the reduction reaction of 4-nitrophenol in the presence of sodium borohydride, which has been monitored by UV-vis spectroscopy. This method is facile and employs gentle reaction conditions in contrast to the conventional techniques using polymers or surfactants and harsh reductants.

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