本實驗利用溶膠凝膠法製備含氮前驅物之二氧化鈦不定型粉體，再將其以不同溫度下分別在空氣與氮氣氣氛中煅燒，最終形成氮摻雜光觸媒粉末。另一方面將部分鍛燒後的粉末與純金紅石相的商用二氧化鈦進行研磨混合，並利用XRD、UV-vis與XPS等對樣品進行各種特性分析。
我們從UV-vis光譜圖得知在鍛燒溫度400°C~500°C是最佳摻雜溫度。在此溫度的粉體是呈現淡黃色的，具有良好的可見光活性。且在氮氣中鍛燒的粉體能在較高溫度下仍然保有可見光吸收特性，至600°C後粉體依然保持淡黃色色澤。
最後藉由光降解實驗讓我們知道，可見光的吸收對降解效果是有很大的幫助，呈現淡黃色的粉體都有著較佳的光催化效果。並且藉由自製粉體與商用純rutile粉末混合讓我們得知，粉體在具有可見光活性的前提之下，如果再具備anatase與rutile的混相結構，能抑止照光後產生的電子-電洞對之複合。讓光催化效果有著更顯著的提升。
關鍵字：二氧化鈦，可見光，光觸媒，氮摻雜二氧化鈦

In this experiment, amorphous TiO2 powder containing nitrogen precursors was prepared using the sol-gel method. The powder was then calcined at different temperatures in both air and nitrogen atmospheres to form nitrogen-doped photocatalyst powder. Additionally, a portion of the calcined powder was mixed with commercially available TiO2 in the pure rutile phase. Various characterization techniques such as XRD, UV-vis, and XPS were employed to analyze the samples.
From the UV-vis spectra, it was observed that the optimal doping temperature was in the range of 400°C to 500°C. The powder obtained at this temperature exhibited a light yellow color and showed good visible light activity. Furthermore, the powder calcined in nitrogen retained its visible light absorption characteristics even at higher temperatures, and it maintained a light yellow color even after reaching 600°C.
Finally, through photocatalytic degradation experiments, it was discovered that the absorption of visible light greatly aided in the degradation process, and powders with a light yellow color exhibited better photocatalytic performance. Moreover, the mixing of self-prepared powder with commercially available pure rutile powder revealed that, under the condition of visible light activity, the presence of a mixed phase structure of anatase and rutile suppressed the recombination of electron-hole pairs generated after light irradiation. This resulted in a significant enhancement of the photocatalytic effect.
Key words: titanium dioxide, visible light, photocatalyst, nitrogen-doped titanium dioxide 

第一章 序論 1
1.2 研究動機與目標 3
第二章 文獻回顧 5
2.1 二氧化鈦光觸媒簡介 5
2.1.1 二氧化鈦的物理性質 5
2.1.2 二氧化鈦的製備方法 9
2.2 二氧化鈦光觸媒原理 13
2.3 二氧化鈦添加氮 17
第三章 實驗方法 23
3.1 實驗規劃 23
3.2 實驗藥品 25
3.3 實驗儀器 27
3.4 實驗樣品製備 29
3.4.1 粉體製備流程 29
3.4.2 粉體的鍛燒與樣品名稱 31
3.4.3 自製粉體與商用二氧化鈦研磨混合 33
3.5 實驗分析方法 35
3.5.1 X-ray繞射儀 35
3.5.2 紫外光/可見光吸收光譜儀分析(UV-visible) 37
3.5.3 比表面積與孔隙度分析儀(BET) 39
3.5.4 電子順磁共振儀(EPR) 41
3.5.5 X射線光電子能譜儀 (XPS) 43
3.5.6 光觸媒於可見光下分解亞甲基藍實驗 45
第四章 結果與討論 47
4.1 自製光觸媒粉體之性質 47
4.1.1 紫外光/可見光吸收光譜儀分析 47
4.1.2 電子順磁共振分析(EPR) 59
4.1.3 X-ray繞射分析 63
4.1.4 BET分析 67
4.1.5 光觸媒粉末分解亞甲基藍實驗 71
4.1.6 XPS分析 75
4.2 自製粉體與商用二氧化鈦研磨混合之性質 87
4.2.1 紫外光/可見光吸收光譜儀分析 89
4.2.2 X-ray繞射分析 91
4.2.3 光觸媒粉末分解亞甲基藍實驗 93
第五章 結論 97
第六章 未來工作 99
References 101

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