| Summary: | 碩士 === 國立彰化師範大學 === 化學系 === 105 === In this thesis, we successfully synthesized five kinds of sensors. Their structures contain thiourea, urea, sulfonamide and imine, respectively. Further, their sensing behavior toward metal ions and photophysical properties were investigated. From the result show that the sensors 1 ~ 5 can effectively detect Hg2+ by fluorescence or color changes. Among of these sensors, 2, 4 and 5 can effectively detect Hg2+ in water containing 0.5% DMSO (v/v). The time evolution experiments of these sensors also show that the recognition interaction was almost completed in short time after addition of the Hg2+. This indicated that the fast response of these sensors toward Hg2+ detection is quite favorable. In addition, these sensors 1, 2, 3, 4 and 5 can also applied to the detection of heavy metal ions in different water samples.
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