本論文的研究主要為使用不同共熔混合物 (eutectic mixtures) 輔助合成碳量子點 (carbon quantum dots; CQDs) 並與傳統合成法合成之碳量子點之性質做比較。首先嘗試用不同的共熔混合物以微波法並以檸檬酸及三羥甲基氨基甲烷 (tris base) 為反應物合成碳量子點，選擇以薄荷醇 (menthol)與肉豆蔻酸 (myristic acid) 莫爾數比10:1之共熔混合物進行實驗，隨後對反應溫度進行優化，在最佳反應條件下進行碳量子點合成。在相同反應物的情況下，此方法合成的碳量子點與一般微波合成法合成的碳量子點有相似的吸收光譜、螢光光譜、XPS光譜、IR光譜、粒徑大小及量子產率 (quantum yield) ，但在合成速度上比傳統合成法快速，僅需10秒即可合成量子產率達91o/o的碳量子點。
隨後便嘗試以不同的反應物合成，並也證實與使用相同反應物合成的碳量子點具備相似特性如金屬離子選擇性或捕捉細菌等。根據這些結果，使用共熔混合物不僅能具備傳統合成法合成之碳量子點的性質也能使合成的速度更加快速。使用共熔混合物進行合成除了速度較以往方法快之外，共熔混合物本身也能夠進行回收清洗並再次用於碳量子點合成。本實驗回收共熔混合物十次並進行碳量子點合成，每次合成的碳量子點皆具備接近的量子產率、吸收光譜與螢光光譜。

一、緒論 1
1、碳量子點 (carbon quantum dots) 1
1.1、簡介 1
1.2、碳量子點放光機制 1
1.3、碳量子點的合成方式 3
1.4、碳量子點的應用 9
2、深共熔溶劑 (deep eutectic solvents，DES) 12
2.1、離子液體簡介 12
2.2、離子液體合成金屬奈米粒子 13
2.3、離子液體合成碳量子點 14
2.4、深共熔溶劑 17
二、研究內容 24
1、藥品與儀器 24
1.1、藥品 24
1.2、儀器 25
2、實驗步驟 26
2.1、共熔混合物合成 26
2.2、Nitrogen doped carbon dots ( N doped CQD ) 合成 (一般微波合成法) 27
2.3、N-doped CQD合成 (共熔混合物合成法) 28
2.4、Nitrogen and sulfur co-doped carbon dots ( N,S co-doped CQD ) 合成 (一般微波合成法) 29
2.5、N,S co-doped CQD合成 (共熔混合物合成法) 29
2.6、金屬離子檢測 30
2.7、Polyethyleneimine carbon quantum dots ( PEI CQD ) 合成(共熔混合物合成法) 31
2.8、金黃色葡萄球菌捕捉 32
2.9、共熔混合物之回收與再利用 33
三、結果與討論 35
1、共熔混合物之選擇 35
2、Menthol/myristic acid共熔混合物比例優化 38
2.1、不同比例menthol/myristic acid升溫能力差異 38
2.2、溫度與加熱時間優化 40
3、一般微波合成法與共熔混合物合成法合成N doped CQD之差異 40
3.1、粒徑大小 41
3.2、官能基分布狀況 41
3.3、吸收光譜與放光光譜 43
3.4、XPS與IR光譜 45
4、共熔混合物合成法合成之N doped CQD螢光強度穩定性 50
5、一般微波合成法與共熔混合物合成法合成N,S co-doped CQD之差異 53
6、 共熔混合物合成法合成之PEI CQD捕捉金黃色葡萄球菌測試 55
7、回收共熔混合物進行N doped CQD合成 56
四、結論 59
五、參考文獻 60

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