臺灣博碩士論文加值系統

重金屬汙染是現今的一個重要課題，有許多方法在探討如何檢測水溶液中的重金屬離子，尤其是常見的汞離子，而表面增強拉曼散射是近代新的檢測概念，高靈敏度是其最大特徵，是利用高熱點去檢測樣品之訊號。
在本實驗中將探討新的方法以檢測水溶液中的汞二價(Ⅱ)離子。以表面電漿共振效應方法著手，使用金與銀金屬奈米陣列作為基底並接上含硫醇鍵且距拉曼光譜活性之化合物，含硫醇鍵之化合物與汞離子進行螯合，藉由觀察其在測量汞離子前後表面增強拉曼散射圖譜之變化以達到檢測汞離子的效果。然而使用不同的溶劑會對陣列形成之排列有所不同，進而影響到拉曼訊號的增強效果。最後使用兩種方法檢測重金屬離子，觀察重金屬離子對表面增強拉曼散射的變化，並發展出一有效的高增強效果基材。

Nowadays our Industrial development are more developed that produce heavy metal ions. Heavy metal ions contain toxins and accumulated in the body, the Earth caused pollution of the environment more besides destroying the environment even endanger health. Therefore we are committed to detect heavy metal ions’ existence in our daily life, to prevented contamination. Surface-enhanced Raman scattering (SERS) has proven to be promising for the detection of trace analytes. And the noble metal nanoparticles have broad range of applicability. Noble metal nanoparticles can increase Surface-enhanced Raman scattering (SERS) signal to detect heavy metal ions. However, the repeatability of noble metal nanoparticles is difficult to control. We planned to make noble metal form colloid particles form a regular array of nanoparticles patterns by adjusting the surface energy. We use SH- compound attached to nanoparticle arrays. Then the analytes which contain heavy metal may chelation with SH- compound. Finally, use Surface-enhanced Raman scattering (SERS) to detect enhanced signal of heavy metal.

一、 緒論 11
1.1 拉曼光譜基本理論與應用 11
1.1.1 拉曼光譜的基本理論 11
1.1.2 拉曼光譜的應用 16
1.1.3 表面增強拉曼散射 16
1.2 奈米粒子材料應用與發展 20
1.2.1 奈米粒子材料的應用 20
1.2.2 奈米粒子材料的發展 21
1.3 研究動機及目的 22
1.4 文獻回顧 22
二、 實驗相關資料 24
2.1 實驗藥品與設備 24
2.1.1 儀器設備 24
2.1.2 實驗藥品 26
2.2 實驗步驟與流程 28
2.2.1 金奈米粒子的製備 28
2.2.2 銀奈米粒子的製備 28
2.2.3 貴金屬奈米陣列的製備 29
2.2.4 表面增強拉曼散射光譜之測量 29
2.2.5 汞離子之測定 31
三、 結果與討論 35
3.1 金奈米粒子陣列製備條件的優化 35
3.1.1 標定物體積對奈米陣列之影響 38
3.1.2 極性溶劑對奈米陣列之影響 42
3.1.3 有機溶劑對奈米陣列之影響 49
3.2 銀奈米粒子陣列製備條件的優化 59
3.2.1 極性溶劑對奈米陣列之影響 62
3.2.2 有機溶劑對奈米陣列之影響 68
3.3 以貴金屬奈米粒子陣列結合表面增強拉曼散射檢測水溶液中汞離子 78
3.3.1 檢測方法之優化 78
四、 結論與未來展望 86
五、 參考文獻 88

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