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  • 09월 20일 16시 이후 : 초록수정 불가능, 일정확인 및 검색만 가능

제126회 대한화학회 학술발표회 및 총회 Development of a colorimetric detection method of chlorine dioxide ions using recyclable concave cubic gold nanoparticles

등록일
2020년 9월 16일 13시 55분 42초
접수번호
1081
발표코드
ENVR.P-550 이곳을 클릭하시면 발표코드에 대한 설명을 보실 수 있습니다.
발표시간
10월 21일(수) 17:00~17:30
발표형식
포스터
발표분야
Environmental Energy
저자 및
공동저자
Sujin Yoon, Yun Sik Nam1, Kang-Bong Lee2,*
National Agenda Research Division, Korea Institute of Science and Technology, Korea
1Advanced Analysis Center, Korea Institute of Science and Technology, Korea
2Green City Technology Institute, Korea Institute of Science and Technology, Korea
The present study reported on the qualitative and quantitative detection of chlorine dioxide ions, which are harmful substances contained or dissolved in oxidizing agents. We developed a colorimetric detection method of chlorine dioxide ions using concave cubic gold nanoparticles, and in more detail, biological samples, drinking water, environmental samples and antibiotics. Chlorine dioxide ions etched AuNCs which changes the deep blue color to pink. The prepared particle was characterized by UV–visible spectrophotometer, Transmission electron microscope (TEM), particle size analyzer and zeta sizer. The diameter of synthesized nanoparticle particle was measured by using particle size analyzer and it was found to be 40 ± 1.3 nm. The surface of the cubic-shaped nanoparticles is transformed into spherical nanoparticles as chlorine dioxide ions are continuously etched. Surface Plasmon Resonance, such as concave cubic gold nanoparticles, appears and emits a specific wavelength through the etching process by chlorine dioxide ions and changes in size and shape of the particles. This present study can be applied in various ways to sensors that measure and monitor environmental pollutants.

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