臺灣博碩士論文加值系統

本研究成功地使用靜電噴霧法將TiO2/graphene oxide (GO)和polyester (PET)不織布結合。首先，我們配置3種不同比例的TiO2-GO，使用XRD、Raman、UV-Vis、DLS分析其性質，為了找出光催化能力最佳的TiO2/GO複合材料，我們將P25（商用光觸媒）和我們的樣品在日光燈照射下進行光降解及暗吸附亞甲基藍（MB）實驗。實驗結果顯示我們所開發的光觸媒有最佳的光催化能力。
將我們所開發的光觸媒透過使用靜電噴霧均勻噴灑在塗佈PU樹酯的PET不織布。從表面型態研究觀察，我們所開發的光觸媒成功地沉積在不織布表面。該纖維經過 4小時超音波水洗測試擁只損失總重3.08 wt%，表現出卓越的附著力。TiO2/GO/-PET不織布透過在日光燈照射下進行MB光降解和暗吸附實驗，其測試結果顯示一天的總降解率為96.4%，光降解率約66.9%，並發現使用靜電噴霧法有明顯有提升光催化能力，主要是因為靜電噴霧法有效改善顆粒的團聚現象，增加光催化比表面積。經過3次光催化循環測試總降解率分別為96.4%、80.7%、78.1%，證實我們的TiO2/GO/PET不織布擁有絕佳的光催化能力及耐久性。

In present study‚we successfully combine TiO2/GO composite with PET nonwoven fabrics by electrospraying. First‚we prepare various TiO2/GO composite and analyze chemical properties of various TiO2/GO composite by XRD、Raman、UV-Vis、DLS‚in order to find the best photocatalysis ability of TiO2/GO composite. We compare the photocatalysis and adsorption ability of P25（commercial photocatalyst） with our innovative photochatalyst in fluorescent light. The results confirm that our innovative photochatalyst has the best photocatalysis ability.
The TiO2/GO composite uniformly is sprayed on the surface of PET nonwoven fabrics by electrospraying‚ Morphological studies reveal that the TiO2/GO uniformly is deposited as clusters on the surface of PET nonwoven fabrics. Our TiO2/GO/PET nonwoven fabrics just loss 3.08 wt% after ultrasonic water treatment for 4 hours. The results confirm that our fabrics have an excellent adhesive force between TiO2/GO and PET nonwoven fabrics. The total methylene blue removal and photodegradation rates of TiO2/GO/PET nonwoven fabrics are 96.4% and 66.9%, respectively in fluorescent light for 1 day. It can be observed that TiO2/GO photocatalytic activity is getting well by electrospraying due to decreasing agglomeration phenomenon and increasing specific surface area. The fastening ability of TiO2/GO composite on PET nonwoven fabric is also investigated. The total methylene blue removal rates of TiO2/GO/PET nonwoven fabric for 3 times of repeated photocatalysis experiments are 96.4%, 80.7% and 78.1%, respectively. Our fabric exhibits excellent durability and can be reused.

摘要 i
Abstract ii
誌謝 iii
目錄 iv
表目錄 vii
圖目錄 viii
符號說明 xi
第1章 序論 1
1.1前言 1
1.2光催化 2
1.3研究動機與目的 3
第2章 文獻回顧 4
2.1半導體特性 4
2.1.1本質半導體（Intrinsic semiconductor） 4
2.1.2異質半導體（Extrinsic semiconductor） 6
2.2光催化半導體 9
2.3二氧化鈦光觸媒 9
2.4 市售P25粉末 11
2.5奈米材料 12
2.5.1奈米材料的定義與特性 12
2.5.2石墨烯特性與介紹 14
2.6 光觸媒固定載體 16
2.6.1 玻璃纖維 16
2.6.2 活性碳 16
2.6.3 二氧化矽材料 17
2.6.4 聚合物材料 17
2.6.5 其他材料載體 17
2.7 光觸媒固定方式 18
2.7.1 Sol-gel溶膠-凝膠法 18
2.7.2 熱處理方法（Thermal treatment method） 19
2.7.3 化學氣相沉積（Chemical vapor deposition） 20
2.7.4 電泳沉積（Electrophorectic deposition） 21
2.7.5 靜電紡絲（Electrospinning） 22
2.7.6靜電噴霧（Electrospraying） 24
2.8不織布 28
2.9 聚對苯二甲酸乙二酯 ( Polyethylene terephthalate ) 29
第3章實驗內容與方法 32
3.1 實驗藥品 32
3.2實驗儀器設備 34
3.3分析儀器設備 36
3.4實驗流程 38
3.4.1尋找最佳電噴液步驟 38
3.4.2 PG9%-PET不織布製作 39
3.5實驗溶液配置步驟及最佳比例 39
3.5.1 氧化石墨（Graphite Oxide）製備 39
3.5.2 Graphite Oxide/P25 電噴液 40
3.5.3 製備Graphite Oxide/P25的PET不織布 40
3.6基本性質測驗 41
3.6.1傅里葉轉換紅外光譜（FT-IR） 41
3.6.2 X光繞射分析儀（XRD） 41
3.6.3顯微拉曼光譜儀（Raman） 41
3.6.4粒徑分析儀（Nano particle analyzer） 41
3.6.5場發射掃描式電子顯微鏡（FE-SEM） 41
3.6.6 X光能量散佈光譜儀（EDS） 42
3.6.7熱重分析儀（Thermogravimetricc Analyzer） 42
3.6.8附著性測試（Adhesion Testing） 42
3.6.9紫外光可見光光譜儀（UV-Vis） 42
第4章結果與討論 45
4.1氧化石墨烯（Graphene Oxide）檢測 46
4.1.1 氧化石墨烯（GO）XRD分析 46
4.1.2 氧化石墨烯（GO）FT-IR分析 48
4.1.3氧化石墨烯（GO）Raman 分析 50
4.2 TiO2/Graphene Oxide複合材料檢測 52
4.2.1 不同比例TiO2/Graphene Oxide複合材料XRD分析 52
4.2.2 不同比例TiO2/Graphene Oxide複合材料Raman分析 53
4.2.3 不同比例TiO2/Graphene Oxide複合材料UV-Vis光譜 56
4.2.4 不同比例TiO2/Graphene Oxide複合材料粒徑分析 58
4.2.5亞甲基藍（MB）的光降解和暗吸附定量分析實驗 61
4.2.5.1 P25光降解和暗吸附定量分析實驗 62
4.2.5.2 PG6%光降解和暗吸附定量分析實驗 65
4.2.5.3 PG9%光降解和暗吸附定量分析實驗 68
4.2.5.4 PG12%光降解和暗吸附定量分析實驗 71
4.3 PG9%-PET不織布纖維實驗分析 74
4.3.1 PG9%-PET不織布纖維SEM和EDS分析 74
4.3.2 纖維表面的複合光觸媒定量測試:TGA 78
4.3.3 PG9%-PET不織布纖維附著力測試實驗 80
4.3.4 電噴霧的PG9%顆粒尺寸分析 81
4.3.5 PG9%-PET纖維光降解和暗吸附實驗 82
4.3.6 PG9%-PET不織布光降解循環測試 85
第5章結論 86
參考文獻 87

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