在本篇論文中我們使用鉬酸銨當作前驅物來進行水熱合成法，在攝氏120度的環境底下製備出六方晶系三氧化鉬奈米絲帶，並分別經過攝氏250度、350度以及450度的退火熱處理，主要在探討三氧化鉬奈米絲帶的特性分析以及退火處理對三氧化鉬奈米絲帶結構及光學特性所造成的影響。三氧化鉬結構以X光粉末繞射分析儀(XRD)、場發射型掃描式電子顯微鏡(FE-SEM)來進行結構分析，以吸收光譜儀(Absorption spectrometer)、傅立葉轉換紅外光光譜儀(Fourier transform infrared spectroscopy)，以及本實驗室組裝之光激發螢光光譜儀(Photoluminescence spectroscopy)進行光學性質之量測並進行甲基藍光降解實驗分析其光觸媒特性。

In this study, hexagonal molybdenum trioxide (h-MoO3) nanoribbons were prepared by hydrothermal synthesis using ammonium molybdate as a precursor in 120 Celsius ambience. Afterwards as-grown samples were further annealed at the temperatures of 250, 350 and 450 Celsius degree. In order to investigate and analyze h-MoO3 nanoribbons’ properties, and to see the difference between as-grown and annealed samples, we characterized them by X-ray powder diffraction, field emission scanning electron microscopy, absorption spectroscopy, Fourier transform infrared spectroscopy, and photoluminescence spectroscopy. Finally, we performed the Methylene blue degradation experiments to investigate the photocatalytic property of h-MoO3 nanoribbons.

論文審定書.....................................................................................................................i
論文公開授權書............................................................................................................ii
誌謝...............................................................................................................................iii
摘要...............................................................................................................................iv
Abstract..........................................................................................................................v
目錄...............................................................................................................................vi
圖目錄.........................................................................................................................viii
第一章 前言..................................................................................................................1
第二章 背景介紹..........................................................................................................3
2-1 三氧化鉬簡介................................................................................................3
2-2 水熱合成法介紹............................................................................................5
2-3 量測儀器介紹................................................................................................6
2-3.1 X光粉末繞射分析儀.......................................................................6
2-3.2 掃描式電子顯微鏡..........................................................................8
2-3.3 吸收光譜儀......................................................................................9
2-3.4 光激發螢光光譜儀.........................................................................10
2-3.5 傅立葉轉換紅外光光譜儀.............................................................12
第三章 實驗步驟........................................................................................................13
第四章 實驗結果與討論............................................................................................15
4-1 XRD判定h-MoO3..........................................................................................15
4-2 SEM分析........................................................................................................19
4-3吸收光譜分析..................................................................................................21
4-4傅立葉轉換紅外光譜分析..............................................................................22
4-5 Methylene blue (MB)光降解分析....…...........................................................25
4-6室溫光激發螢光光譜分析..............................................................................28
4-7低溫光激發螢光光譜分析..............................................................................29
第五章 結論................................................................................................................32
參考文獻......................................................................................................................33

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