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完整後設資料紀錄
DC 欄位 | 值 | 語言 |
---|---|---|
dc.contributor.advisor | 劉振宇(Chen-Wuing Liu) | |
dc.contributor.author | Ting-Yu Chang | en |
dc.contributor.author | 張庭祐 | zh_TW |
dc.date.accessioned | 2021-06-15T12:28:30Z | - |
dc.date.available | 2018-08-24 | |
dc.date.copyright | 2016-08-24 | |
dc.date.issued | 2016 | |
dc.date.submitted | 2016-08-08 | |
dc.identifier.citation | 薛華、李隆弟、郁鑒源、陳德补,1994,分析化學,中國:清華大學出版社,第314頁。
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dc.identifier.uri | http://tdr.lib.ntu.edu.tw/jspui/handle/123456789/50046 | - |
dc.description.abstract | 本研究利用水熱合成法,將商業型二氧化鈦(P-25)於氫氧化鈉溶液中加熱反應並以鹽酸酸洗,製備成二氧化鈦奈米管(TNT),分析其結構特性與評估其光催化活性。本研究分別探討(1)不同酸洗濃度(0.1 N、0.5 N、1.0 N)製成之TNT;(2)固定酸洗濃度(0.5 N)添加5 ~ 20 wt.% SnO2改質;及(3)固定酸洗濃度(0.1 N)添加5 wt.% SnO2、Al2O3、FeCl2改質。所合成之樣品利用X射線繞射光譜(XRD)、氮氣等溫吸脫附、掃描式電子顯微鏡(SEM)、穿透式及高解析穿透式電子顯微鏡(TEM and HR-TEM)、紫外光-可見光分光光譜(UV-vis)、化學分析電子光譜儀(ESCA)、傅立葉轉換紅外線光譜(FTIR)及光激發螢光光譜(PL),分析其物化特性。合成樣品光催化活性,利用UV光激發光觸媒,並以亞甲基藍(MB)、剛果紅(CR)、結晶紫(CV)染料,進行脫色反應評估。
製成之二氧化鈦奈米管比表面積約為300 ~ 400 m2/g,與起始材料P-25相比,面積增加6 ~ 7倍,二氧化鈦奈米管為中空兩端開口具多層管壁且管長可達100 ~ 200 nm 之管狀結構。0.1 N、0.5 N、1.0 N-TNT對亞甲基藍光催化去除效果約為60 ~ 80% 。 UV光激發TNT產生之電子-電洞對具有再結合之特性,然而,在TNT添加入SnO2製備成複合材料後,以PL(Photoluminescence)分析其電子-電洞對複合率,其SnO2/TNT複合材料確實可達到降低電子-電洞對複合率之效果,此是由於SnO2/TNT彼此產生異質結構之特性,適量添加SnO2的複合材料對亞甲基藍去除效果可高達96%。另外,亞甲基藍光催化活性評估中,TNT之光催化反應動力學,皆符合一階反應動力式。 | zh_TW |
dc.description.abstract | In this study, TNT was synthesized by a hydrothermal method from commercial Degussa P-25 TiO2 nanoparticles. Moreover, SnO2, Al2O3, FeCl2, were utilized as precursors to modify the surface of TNT. Various TNT composites were synthesized by three stages:(1)after the hydrothermal process, the sample was washed with DI water and 0.1 N, 0.5 N or 1.0 N HCl, respectively, (2)different content (5, 10, 20 wt.%) SnO2 mixed P-25 as precursors for producing SnO2/TNT composites, which HCl 0.5 N as acid washing concentration, and (3) 5 wt.% SnO2, Al2O3, FeCl2 and P-25 as precursors for synthesizing Sn-TNT, Al-TNT, and Fe-TNT respectively under 0.1 N HCl treatment. The physical and chemical properties of all prepared samples were analyzed by X-ray diffraction spectra (XRD), nitrogen adsorption-desorption isotherm, scanning electron microscopy (SEM), high-resolution transmission electron microscopy (TEM, HR-TEM), UV-visible spectrometry (UV-vis), electron spectroscopy for chemical analysis (ESCA), fourier transform infrared spectroscopy (FTIR), and photoluminescence (PL). The photocatalytic performance of sample was evaluated through degradation of organic dyes comprised of methylene blue (MB), Congo red (CR), crystal violet (CV).
After hydrothermal treatment, the BET surface area of TNT series samples significantly grew from 55 m2/g (raw P-25) to around 300 ~ 400 m2/g, with an increase of 6 ~ 7 times. The TNT exhibited a hollow tubular shapethat both sides open with a diameter around 5 nm and length 100 ~ 200 nm. The MB photodegradation efficiencies of basic TNT samples were around 60% ~ 80% under UV irradiation. In contrast, Sn5-TNT possessed the highest photodegradation efficiency in this study, which was approximately 96% removal. PL analysis result indicated that the rate of recombination of e-/h+ pair was decreased with the presence of SnO2 as precursors. This was due to the hetero junction relation between SnO2 and TNT which was formed during hydrothermal treatment. Furthermore, the MB photodegradation conformed the first-order reactions equation. | en |
dc.description.provenance | Made available in DSpace on 2021-06-15T12:28:30Z (GMT). No. of bitstreams: 1 ntu-105-R03622009-1.pdf: 5789133 bytes, checksum: b85fdb85c5c460838ca962e7002175d4 (MD5) Previous issue date: 2016 | en |
dc.description.tableofcontents | 目錄
摘要 i Abstract ii 目錄 iv 圖目錄 vii 表目錄 x 第一章 前言 1 1.1 研究背景 1 1.2 研究動機 1 1.3 研究目的 2 第二章 文獻回顧 3 2.1 二氧化鈦基本性質 3 2.2 二氧化鈦奈米管製備方法 7 2.3 二氧化鈦奈米管形成機制 9 2.4 水熱合成影響因子 11 2.5 二氧化鈦奈米管改質 12 2.6 p-n異質接面能階型式 13 第三章 實驗方法 14 3.1 實驗架構 14 3.2 實驗藥品 15 3.3 實驗儀器 17 3.4 二氧化鈦奈米管合成 19 3.5 二氧化鈦奈米管金屬摻雜合成 20 3.6 鍛燒條件 20 3.7 光催化實驗 21 3.7.1 反應動力學 22 3.8 特性鑑定 24 3.8.1 X射線繞射光譜 24 3.8.2 氮氣等溫吸脫附曲線 25 3.8.3 掃描式電子顯微鏡 29 3.8.4 穿透式及高解析穿透式電子顯微鏡 29 3.8.5 紫外光-可見光分光光譜儀 30 3.8.6 化學分析電子光譜儀 31 3.8.7 傅立葉轉換紅外線光譜分析 32 3.8.8 光激發螢光光譜 33 第四章 結果與討論 34 4.1 二氧化鈦奈米管合成機制 34 4.2 不同酸洗濃度之奈米管合成 36 4.3 不同酸洗濃度之鍛燒處理 43 4.4 二氧化鈦奈米管之SnO2摻雜 54 4.5 二氧化鈦奈米管之不同氧化物與金屬鹽類摻雜 69 4.6 染料廢水之光催化反應 74 4.6.1 界達電位分析儀結果 74 4.6.2 亞甲基藍光催化反應 76 4.6.3 剛果紅光催化反應 80 4.6.4 結晶紫光催化反應 84 4.6.5 反應動力學 88 4.6.6 綜合討論 91 第五章 結論與建議 95 5.1 結論 95 5.2 建議與未來研究方向 96 參考文獻 97 | |
dc.language.iso | zh-TW | |
dc.title | 以水熱合及表面改良之二氧化鈦奈米管光催化降解廢水中染料 | zh_TW |
dc.title | Application of Surface Modification of Titanium Dioxide Nanotube Photodegradation Dye Wastewater via Hydrothermal Synthesis | en |
dc.type | Thesis | |
dc.date.schoolyear | 104-2 | |
dc.description.degree | 碩士 | |
dc.contributor.oralexamcommittee | 席行正,范致豪,蔡政諺 | |
dc.subject.keyword | 二氧化鈦奈米管,水熱合成法,異質結構,光催化,染料,光激發螢光光譜, | zh_TW |
dc.subject.keyword | titanium dioxide nanotubes,hydrothermal method,heterostructures,photocatalysis,dyes,photoluminescence, | en |
dc.relation.page | 102 | |
dc.identifier.doi | 10.6342/NTU201602098 | |
dc.rights.note | 有償授權 | |
dc.date.accepted | 2016-08-08 | |
dc.contributor.author-college | 生物資源暨農學院 | zh_TW |
dc.contributor.author-dept | 生物環境系統工程學研究所 | zh_TW |
顯示於系所單位: | 生物環境系統工程學系 |
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