臺灣博碩士論文加值系統

　　本研究使用改良式Hummer’s method製備氧化石墨烯(GO)，再者使用硫脲和鉬酸銨做化學反應形成MoS2，將MoS2與GO利用水熱和合成方法製備出MoS2/Graphene複合材料，最後使用回流法合成Pt/MoS2/Graphene複合材料。
　　將所獲得的Pt/MoS2/Graphene複合材料進行X光繞射（XRD)、掃描式電子顯微鏡（SEM)、穿透式電子顯微鏡（TEM）以及能量散射光譜儀（EDS）進行分析，結果顯示可成功合成Pt/MoS2/Graphene複合材料。
　　在Pt/MoS2/Graphene複合材料對亞甲基藍以及蘇丹紅一號之光催化降解性能方面。結果顯示Pt/MoS2/Graphene複合材料於光照下4小時後對亞甲基的降解率可達92%，對蘇丹紅一號染料降解率為93%。Pt/MoS2/Graphene複合材料對亞甲基藍以及蘇丹紅一號之降解性能隨循環次數之增加而降低。

　　This study synthesized graphene oxide (GO) sheets using the methods of modified Hummers and Offerman. The GO was mixed with MoS2 prepared using ammonium molybdate and thiourea to form the MoS2/graphene nanocomposites. The MoS2/graphene deposited with Pt particles was put in ethylene glycol for reflux to create Pt/MoS2/Gr. The Pt/MoS2/Gr photocatalysts were characterized by UV-vis spectroscopy, transmission electron microscopy (TEM), and X-ray diffraction analysis (XRD). Photocatalytic activity under visible-light irradiation was evaluated in a methylene blue (MB) dye degradation reaction in the aqueous phase. The results show that the Pt/MoS2/Gr nanocomposite prepared in this study could degrade 92% of the MB and 93% of the Sudan I dye in 4h. The degradation performance of Pt/MoS2/Graphene composites to methylene blue and Sudan I dye decreases with the number of cycles.

摘要 i
Abstract ii
誌謝 iii
目錄 iv
表目錄 vi
圖目錄 vii
第一章緒論 - 1 -
1-1前言 - 1 -
1-2 研究動機與目的 - 2 -
第二章研究背景與文獻回顧 - 4 -
2.1、石墨烯 - 4 -
2.1.1石墨烯結構與特性 - 5 -
2.1.2石墨烯的製備方法 - 6 -
2.2二硫化鉬 - 8 -
2.2.1二硫化鉬的結構與特性 - 9 -
2.2.2二硫化鉬的製備方法 - 9 -
2.3 水熱法 - 10 -
2.4回流法 - 11 -
2.5光催化（Photocatalysis） - 12 -
2.5.1 光催化原理 - 12 -
2.6染料概論 - 14 -
2.6.1亞甲基藍簡介 - 15 -
2.6.2 蘇丹紅一號簡介 - 16 -
第三章實驗方法與步驟 - 17 -
3.1實驗藥品與儀器 - 17 -
3.1.1實驗藥品 - 17 -
3.1.2 實驗儀器 - 18 -
3.2實驗流程與方法 - 19 -
3.2.1製備氧化石墨烯 - 20 -
3.2.2製備MoS2奈米材料 - 20 -
3.2.3製備MoS2/Grephene複合材料 - 20 -
3.2.4合成Pt/MoS2/Grephene複合材料 - 20 -
3.3 冷凝管回流裝置 - 20 -
3.4光催化實驗 - 21 -
3.4.1 MB降解 - 21 -
3.4.2 Sudan I降解 - 21 -
3.5穿透式電子顯微鏡試片製作 - 22 -
第四章實驗結果與討論 - 23 -
4.1材料鑑定與分析 - 23 -
4.1.1 X光繞射（XRD）結構分析 - 23 -
4.1.2掃描式電子顯微鏡（SEM）分析鑑定 - 24 -
4.1.3穿透式電子顯微鏡（TEM）分析鑑定 - 25 -
4.1.4能量散射光譜儀（EDS）分析鑑定 - 26 -
4.2光催化染料之分析 - 28 -
4.2.1 光催化MB降解之分析 - 28 -
4.2.2 光催化Sudan I降解之分析 - 29 -
4.2.3反應動力學 - 30 -
4.3光催化穩定性 - 33 -
第五章結論 - 43 -
參考文獻 - 44 -

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