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| Type |
Poster Presentation |
| Area |
무기화학 |
| Room No. |
포스터발표장 |
| Time |
4월 21일 (금요일) 13:00~14:30 |
| Code |
INOR.P-58 |
| Subject |
A novel colorimetric chemosensor for the sequential detection of Ni2+ and CN- in aqueous solution |
| Authors |
강지혜, 김 철1,*, 김아란
서울과학기술대학교 정밀화학과, Korea
1서울과학기술대학교 정밀화학과 친환경소재제품센터, Korea
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| Abstract |
A new colorimetric chemosensor 1 for the sequential detection of Ni2+ and CN- was designed and synthesized. The presence of Ni2+ led to a distinct naked-eye color change from colorless to yellow in a near-perfect aqueous solution. To examine the binding mechanism of 1 with Ni2+, UV-vis spectroscopy, ESI-mass spectrometry analysis and DFT calculations were conducted. The detection limit of 1 for Ni2+ was down to nanomolar concentration (57 nM). Also, the sensing ability of 1 for Ni2+ was successfully carried out in real water samples (tap, drinking and sewage water). Moreover, the resulting 1-Ni2+ complex acted as an efficient colorimetric chemosensor for CN- via a color change from yellow to colorless. Therefore, chemosensor 1 can be employed as a practical colorimetric chemosensor for detecting of both Ni2+ and CN-. |
| E-mail |
jhkang53@seoultech.ac.kr |
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119th General Meeting of the KCS