自1970年代起，TiO2在光催化性質方面的研究開始興起。由於TiO2對環境無害，目前已廣泛運用於光降解、分解水及染料敏化太陽能電池等光伏應用。將TiO2或其前驅物在鹼性環境下反應則可得到一層狀結構的鈦酸鹽類。其結構為帶負電的TiO6層與帶正電之陽離子層組成。這種層狀鈦酸鹽在重金屬離子捕捉、有機汙染物吸附及光降解等方面皆有應用價值。目前已有的層狀鈦酸鹽的合成方法是將TiO2和鹼金屬或強鹼溶液反應，或是將含鈦之前驅物在鹼性溶液中反應得到。

在本論文中提出以和文獻中不同的方法合成層狀鈦酸鹽，使用溶液為甲醯胺，而合成得到之層狀鈦酸鹽是以NH4+作為夾層陽離子。經由X-ray繞射鑑定，可確認以這種方法合成的層狀鈦酸鹽是和JCPDS資料庫中已建檔之層狀鈦酸鹽H2Ti2O5不同，且由傅立葉紅外光譜儀(FT-IR)鑑定得知產物中的確有NH4+存在。最後由熱重分析(TGA)結果計算產物分子式為(NH4)2Ti7O15。產物比表面積由BET法計算為334 m2/g，在亞甲基藍(MB)吸附實驗中可達到213 mg/g之吸附量。

目錄
誌謝 I
摘要 II
目錄 III
圖目錄 V
表目錄 VII
第一章、 緒論 1
一.1. 二氧化鈦光觸媒 (TiO2 photocatalyst) 1
一.2. 層狀鈦酸鹽 (Layered Titanate) 3
第二章、 文獻回顧 4
二.1. 二氧化鈦基本性質 4
二.2. 二氧化鈦製備 6
二.2.1 非烷氧基路線 (non-alkoxide route) 6
二.2.2 烷氧基路線 (Alkoxide route) 9
二.3. 層狀鈦酸鹽 (Layered Titanate) 11
二.3.1. 層狀鈦酸鹽結構 11
二.3.2. 層狀鈦酸鹽製備 12
二.4. 層狀鈦酸鹽應用 16
二.5. 研究動機 18
第三章、 實驗 19
三.1 實驗藥品 19
三.2 實驗器材 20
三.3 分析儀器 22
三.4 實驗步驟 23
三.4.1 層狀鈦酸鹽製備與鑑定 23
三.4.2 亞甲基藍(MB)吸附實驗 25
第四章、 結果與討論 27
四.1. 層狀鈦酸鹽鑑定 27
四.2. 亞甲基藍吸附實驗結果 35
四.3. 結論 37
參考文獻 38

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