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|
| Type |
Poster Presentation |
| Area |
Material Chemistry |
| Room No. |
Event Hall |
| Time |
4월 20일 (금요일) 11:00~12:30 |
| Code |
MAT.P-554 |
| Subject |
Colorimetric detection of cadmium ions using Au@Ag core-shell nanoparticles |
| Authors |
Sung Hee Choi, Yun Sik Nam1, Kang-Bong Lee*
Green City Technology Institute, Korea Institute of Science and Technology, Korea
1Advanced Analysis Center, Korea Institute of Science and Technology, Korea
|
| Abstract |
Functionalized bimetallic nanospheres were synthesized and studied for the visual detection of cadmium ions(Cd2+) in aqueous samples. The optical properties and physical properties of silver coated gold nanoparticles(Au@Ag NPs) were characterized by UV-Vis spectroscopy and transmission electron microscopy. The influencing factors such as pH and temperature, reaction time were investigated. The intrinsic color of the Au@Ag NPs changes from orange yellow to light green with cadmium ions. The colorimetric method was successfully applied to the determination of Cd(II) in real samples.
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| E-mail |
pompopo@nate.com |
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121st General Meeting of the KCS