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系統識別號 U0026-2607201610244200
論文名稱(中文) 以化學鍍法於鋁基板表面製備磷酸鐵薄膜及其電吸附鋰離子之研究
論文名稱(英文) Electro-adsorption of Li+ using iron phosphate film on the aluminum surface prepared by chemical plating method
校院名稱 成功大學
系所名稱(中) 資源工程學系
系所名稱(英) Department of Resources Engineering
學年度 104
學期 2
出版年 105
研究生(中文) 陳奕兆
研究生(英文) Yi-Chao Chen
學號 N46031198
學位類別 碩士
語文別 中文
論文頁數 49頁
口試委員 指導教授-向性一
口試委員-吳毓純
口試委員-曾文甲
中文關鍵字 無電電鍍  磷酸鐵  電吸附 
英文關鍵字 Chemical plating  Ferric phosphate  Electro-desorption technology 
學科別分類
中文摘要 鋰離子篩吸附法由於具有價格低廉、無污染、對環境友好等特點是目前公認於鹵水中提鋰最有前途的方法之一。但仍有實際吸附量低、吸附劑溶損率大、壽命短、交換速率慢等缺點。本研究結合磷酸鐵-鋰離子篩及電吸附技術,利用奈米技術在金屬鋁表面製作多孔磷酸鐵吸附薄膜,探討利用電吸附方式在鹵水中提鋰之應用可能性。本研究利用化學鍍法,於金屬鋁基板表面依序鍍上金屬鋅、鐵,再經過磷酸化處理,製備磷酸鐵薄膜。實驗過程中,鋁基板先經拋光處理,除去表面氧化膜,再浸泡氨水以脫脂及活化;首先使用二次浸鋅法於與基板表面先披覆金屬鋅薄膜以提升後續生成磷酸鐵薄膜的附著力。然後在鹼性溶液環境下,利用強還原劑將鐵離子還原成金屬鐵薄膜,再於磷酸溶液中進行磷化處理,完成磷酸鐵薄膜之制備。並利用XRD、SEM、XPS、Raman等分析薄膜之結晶相、顯微結構及物理化學性質等。最後再利用磷酸鐵試片做電吸附鋰離子之測試,探討其吸附鋰離子之可能性。結果發現經40分鐘電吸附後其鋰離子吸附量可達3.5mmol/g。顯示結合磷酸鐵鋰離子篩及電吸附技術的吸附效率遠比傳統鋰離子篩的自發吸附來的好。此項技術未來在海水、滷水及廢棄鋰離子電池等鋰資源富集及回收上應有很大的發展潛力。
英文摘要 The lithium ion-sieve method has been considered as the most promising approach of extracting lithium from brine water due to the benefits of inexpensive, non-polluting and environmentally friendly. However, it still has many shortcomings, such as low actual adsorption, high adsorbent solution loss rate, short life and slow exchange rate, etc. This study explored the application possibility of extracting lithium from brine water by combining with iron phosphate-lithium ion sieve prepared by chemical plating on aluminum substrate and electro-desorption technology. In this study, metal aluminum substrate surface was sequentially plated with metal zinc, iron, and then through the phosphating process to prepare iron phosphate film. XRD, SEM, XPS and Raman were used to characterize the crystalline phase, microstructure, physical and chemical properties of iron phosphate films. Finally, the lithium ion electro-sorption of iron phosphate films was performed to investigate the capacity of lithium-ion adsorption. The results showed that the lithium-ion adsorption capacity of iron phosphate film can be up to 3.5 mmol/g for electro-sorption after 40 minutes. It indicates that the lithium adsorption efficiency of the technology combining iron phosphate- lithium ion sieve and electro-desorption is better than that of the traditional lithium ion sieve adsorption. This technology has a great application potential on the concentration and recovery of lithium from sea water, brine water and spent lithium ion batteries.
論文目次 摘要 I
致謝 IX
目錄 X
表目錄 XIII
圖目錄 XIV
第一章 緒論 1
1.1 前言 1
1.2 研究動機與目的 2
第二章 文獻回顧與理論基礎 3
2.1鋰的性質 3
2.2鋰資源的分布 3
2.3鋰的生產及銷售現況 4
2.4鋰的應用 6
2.4.1在核能工業中的應用 6
2.4.2在冶金工業中的應用 7
2.4.3在醫藥中的應用 7
2.4.4在玻璃工業中的應用 7
2.4.5在陶瓷工業中的應用 8
2.4.6在潤滑劑中的應用 8
2.4.7 電池的應用 8
2.5提鋰技術 9
2.5.1固體礦石提鋰技術 9
2.5.2滷水提鋰技術 9
2.6電吸附技術原理及應用進展 16
2.7化學鍍法(無電電鍍) 18
2.7.1化學鍍(無電電鍍)之發展 18
2.7.2無電電鍍之簡介 18
2.7.3 鋁基材表面鍍鋅 21
2.8化成皮膜 22
2.8.1磷化皮膜之反應機制 23
第三章 研究方法 25
3.1 實驗藥品與材料 25
3.1.1 化學鍍鋅之鍍浴藥品 25
3.1.2 化學鍍鐵之鍍浴藥品 25
3.1.3 磷化溶液之藥品 25
3.2 實驗步驟 26
3.2.1 鋁片表面處理 27
3.2.2 鍍鋅程序 28
3.2.3 鍍鐵程序 29
3.2.4 磷酸化處理 31
3.2.5 電吸附循環實驗 31
3.3儀器與分析方法 32
第四章 結果與討論 35
4.1 基材選擇 35
4.2 化學鍍法 35
4.3 磷酸鐵薄膜分析 38
4.4 試片剖面分析 41
4.5電吸、脫附實驗 43
第五章 結論 45
參考文獻 46
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