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http://tdr.lib.ntu.edu.tw/jspui/handle/123456789/29876完整後設資料紀錄
| DC 欄位 | 值 | 語言 |
|---|---|---|
| dc.contributor.advisor | 駱尚廉 | |
| dc.contributor.author | Chih-Hao Chen | en |
| dc.contributor.author | 陳志豪 | zh_TW |
| dc.date.accessioned | 2021-06-13T01:22:51Z | - |
| dc.date.available | 2009-07-19 | |
| dc.date.copyright | 2007-07-19 | |
| dc.date.issued | 2007 | |
| dc.date.submitted | 2007-07-16 | |
| dc.identifier.citation | 英文文獻
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Journal of Molecular Catalysis A: Chemical, 217, 203-210. Zhao, J., Wang, X., Chen, R., and Li, L., (2005) Fabrication of titanium oxide nanotube arrays by anodic oxidation. Solid State Communications, 134, 705-710. Zhu, J., Palchik, O., Chen, S., and Gedanken, A., (2000) Microwave Assisted Preparation of CdSe, PbSe, and Cu2-xSe Nanoparticles. J. Pyhs. Chem. B, 104, 7344-7347. Zhu, J., Zhou, M., Xu, J., Liao, X., (2001) Preparation of CdS and ZnS nanoparticles using microwave irradiation. Mater. Lett, 47, 25-29. Zhu, X., Castleberry, S. R., Nanny, M. A., and Butler, E.C., (2005) Effect of pH and catalyst concentration on photocatalytic oxidation of aqueous ammonia and nitrite in titanium dioxide suspensions. Environmental Science and Technology, 39, 3784-3791. 中文文獻 勞工安全衛生研究所，http://www.iosh.gov.tw 中華民國環境工程學會編印，環境微生物，文太印刷，台北，1999 歐信宏，光觸媒間電子傳遞效應催化降解4-CP及4-NP，碩士論文，國立台灣大學環境工程學研究所，台北，2003 陳琪婷，以二氧化錳催化降解水中氨氮之研究，碩士論文，國立中山大學環境及工程學系，高雄，2003 | |
| dc.identifier.uri | http://tdr.lib.ntu.edu.tw/jspui/handle/123456789/29876 | - |
| dc.description.abstract | 摘要
氨氮(NH3/NH4+)是水中主要常見的含氮污染物之一，其存在不僅會對水中的生物造成影響，當水體存在過量氨氮時，還會造成魚類的死亡，同時也會降低對自來水的加氯消毒效果。現行氮氨處理技術包括有生物脫硝、氣提、折點加氯、離子交換等。光催化反應已被證實是一有效且具可行性之氧化方式，乃利用光觸媒受激發之電子進行一連串之化學反應所生成之氫氧自由基(OH∙)，再利用氫氧自由基具極強氧化能力之特性將氨氮予以氧化去除。 本研究利用微波水熱法製備硫化鎘(CdS)奈米粒子及氧化鈦奈米管(TNTs)，探討在不同條件下所合成之CdS、TNTs、CdS/TNTs對氨氮去除效果之影響。控制因子包括有溫度、功率、Cd/S比例，除了探討上述因子對光催化NH3造成之影響外，同時也配合一些物性分析如粒徑、孔隙、比表面積、SEM/EDX、XRD等對微波所合成之光觸媒做一輔助說明。另外本研究也將針對TNTs之離子交換能力做進一步之探討。 研究結果顯示當反應系統中存在CdS/TNTs時，由於光電子間傳遞效應之影響(Interparticle electron transfer, IPET)，其光催化去除NH3之效果比單純只使用CdS、TNTs之效果來得更好。TNTs之離子交換能力則有隨著微波功率增而有下降的趨勢。 | zh_TW |
| dc.description.abstract | Abstract
Aqueous ammonia (NH3/NH4+) is a major nitrogen-containing pollutants in wastewater. Its existence will be toxic to aquatic life and will cause fishes die. When there is high amount of ammonia in natural water, it will reduce the effect of disinfection in the treatments of tap water. Currently, there are some treatments for ammonia removal like biological nitrification, ammonia stripping, break-point chlorination and ion exchange. The photocatalytic reaction has been proved that it is an effective and a feasible method for ammonia removal . When photocatalysts are under UV illumination, the excited electron will follow a series of reaction and will produce the hydroxyl radicals (OH∙) which possess high ability of oxidation and then the ammonia will be oxidized. The cadmium sulfide and titanate nanotubes (TNTs) were prepared by microwave hydrothermal method in this research, the efficiency of ammonia removal by using photocatalysts under different microwave conditions were also investigated. The control factors include temperature, irradiation power and Cd/S ratio. In addition to examining the effects of ammonia by the above factors, we also cooperate with the physical analysis like particle size analysis, pore volume analysis, specific surface area, SEM/EDX, XRD to make some assistant descriptions. However, the ion exchange ability of TNTs were also determined. When there are CdS/TNTs in our photocatalytic system, the efficiency of ammonia removal was better than either only CdS or TNTs in the photocatalytic system. The result can be due to the interparticle electron transfer (IPET). Moreover, the ion exchange ability of TNTs decreased with the irradiation power increased. | en |
| dc.description.provenance | Made available in DSpace on 2021-06-13T01:22:51Z (GMT). No. of bitstreams: 1 ntu-96-R94541131-1.pdf: 3798277 bytes, checksum: bf38d1b796e36e82aa4f145b24fef5c5 (MD5) Previous issue date: 2007 | en |
| dc.description.tableofcontents | 目錄
誌謝………………………………………………………………… ……i 摘要…………………………………………………………………... …ii Abstract………………………………………………………………….iii 圖目錄…………………………………………………………..…... …vii 表目錄………………………………………………………………...…ix 第一章 緒論…………………..…………………….….………………1 1-1 研究緣起...………………………….………..…………………1 1-2 研究目的與內容…...…………………………..……………….2 第二章 文獻回顧……………………………………….……..……….3 2-1 氨氮………………………………………………….………….3 2-1-1 氨氮之來源……………….………….………………..3 2-1-2 氨氮之物化性質.………………….…………………..4 2-1-3氨氮之健康危害效應……………………….…….…...5 2-1-4 現行氨氮之處理技術……………………….………...7 2-2 微波理論....………………………………………………...…...9 2-3 氧化鈦奈米管 (TNTs)..……………………………..………..11 2-3-1 TNTs之製備方式……..…..……..………...………….11 2-3-2 TNTs之光催化特性………………….……………….13 2-3-3 溫度對TNTs形成之影響……………….…………...14 2-3-4 TNTs負載金屬化合物…….……...…………………..14 2-3-5 TNTs之離子交換及吸附………….………………….15 2-3-6 酸洗對TNTs之影響………….……………………...15 2-4 光催化……..…………………..……………………………...16 2-4-1 光催化反應………………………….……………….16 2-4-2 氨氮之光催化技術……………………….………….19 2-5 光觸媒介紹……..…………………..………………………...21 2-5-1 半導體性質……………………….………………….21 2-5-2 半導體之應用……………………….……………….23 2-5-3 硫化鎘光觸媒……………………….……………….23 2-5-4 硫化鎘之製備方式……………………….………….24 2-5-5 硫化鎘的光催化應用………………………………..25 第三章 實驗方法與材料……………………….………………….…28 3-1 實驗硫程………..……………………….…………………….28 3-2 實驗材料………..……………………….…………………….29 3-2-1 藥品……………………….………………………….29 3-2-2 實驗設備……………………….…………………….31 3-3 實驗內容…………………………..…….…………………….34 3-3-1 實驗方法……………………….…………………….34 3-3-1-1 光觸媒製備………………………………….34 3-3-1-2 氨氮降解實驗……………………………….35 3-3-2 操作因數……………………….…………………….36 3-3-3 實驗步驟……………………….…………………….36 3-4 分析方法……………..………………...……………………...37 3-4-1 觸媒物性分析……...…..…………………………….37 3-4-2 目標污染物定量分析……...……..………………….40 3-4-3 光催化產物定量分析…………….....……………….41 第四章 結果與討論…………………………………….…………….42 4-1 合成CdS之溶劑、溫度選擇……………...………………….42 4-2 背景實驗…..………..................................................................45 4-2-1 揮發實驗……………………………………………..45 4-2-2 直接光解……………………………………………..46 4-2-3 CdS之最佳添加劑量…...…………………………….47 4-2-4 吸附實驗…...………………………………………...48 4-3 光催化降解實驗…………..…………...……...........................49 4-3-1 微波功率對NH3光催化之影響……....……………..50 4-3-2 鎘源及硫源比例(Cd/S)對NH3光催化之影響......…..58 4-3-3 合成功率對TNTs之吸附及離子交換能力之影響…66 4-3-4 CdS/HTNTs 對NH3光催化之影響….……...……..68 4-3-5 CdS/WTNTs 對NH3光催化之影響….……...…….72 第五章 結論與建議………………...………………………………...77 5-1 結論…………………...……………………………………….77 5-2 建議…………………...……………………………………….78 第六章 參考文獻………..…………………...……………………….79 附錄 實驗數據.…………………...…...……………………..…….....84 | |
| dc.language.iso | zh-TW | |
| dc.subject | 光催化 | zh_TW |
| dc.subject | 微波 | zh_TW |
| dc.subject | 氧化鈦奈米管 | zh_TW |
| dc.subject | 硫化鎘 | zh_TW |
| dc.subject | 氨氮 | zh_TW |
| dc.subject | CdS | en |
| dc.subject | Ammonia | en |
| dc.subject | TNTs | en |
| dc.subject | Microwave | en |
| dc.subject | Photocatalytic | en |
| dc.title | 以微波水熱法合成光觸媒硫化鎘結合氧化鈦奈米管去除水中氨氮之研究 | zh_TW |
| dc.title | Photocatalytic oxidation of ammonia over cadmium sulfide / titanate nanotube synthesized via microwave irradiation | en |
| dc.type | Thesis | |
| dc.date.schoolyear | 95-2 | |
| dc.description.degree | 碩士 | |
| dc.contributor.oralexamcommittee | 官文惠,劉雅瑄 | |
| dc.subject.keyword | 光催化,氨氮,硫化鎘,氧化鈦奈米管,微波, | zh_TW |
| dc.subject.keyword | Photocatalytic,Ammonia,CdS,TNTs,Microwave, | en |
| dc.relation.page | 93 | |
| dc.rights.note | 有償授權 | |
| dc.date.accepted | 2007-07-18 | |
| dc.contributor.author-college | 工學院 | zh_TW |
| dc.contributor.author-dept | 環境工程學研究所 | zh_TW |
| 顯示於系所單位： | 環境工程學研究所 | |
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