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完整後設資料紀錄
DC 欄位 | 值 | 語言 |
---|---|---|
dc.contributor.advisor | 張煥宗(Huan-Tsung Chang) | |
dc.contributor.author | Yi-Jyun Lin | en |
dc.contributor.author | 林羿君 | zh_TW |
dc.date.accessioned | 2021-06-16T02:55:35Z | - |
dc.date.available | 2016-07-20 | |
dc.date.copyright | 2015-07-20 | |
dc.date.issued | 2015 | |
dc.date.submitted | 2015-07-09 | |
dc.identifier.citation | 1.6 參考文獻
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dc.identifier.uri | http://tdr.lib.ntu.edu.tw/jspui/handle/123456789/54415 | - |
dc.description.abstract | 本篇論文主要開發一步合成法在70 °C利用巰基苯甲酸(mercaptobenzoic acid)與銅離子反應30分鐘來合成發光銅奈米團簇聚集體(copper nanocluster aggregates),且藉由使用不同的巰基苯甲酸異構物,可合成出具有不同物理及光學性質的銅奈米團簇。以鄰、對巰基苯甲酸分別可合成出具有藍色及紅色放光性質的銅奈米團簇,其量子產率分別為13.2% 和 0.5%。另一方面,以間巰基苯甲酸合成的銅奈米團簇雖具放紅光性質,但十分微弱。隨著 pH 值的提高,鄰巰基苯甲酸與對巰基苯甲酸合成的銅奈米團簇,其螢光分別有上升以及下降的趨勢,其中對巰基苯甲酸之銅奈米團簇具有聚集誘導放光的性質,相較之下,由於鄰巰基苯甲酸之銅奈米團簇具有在水溶液分散性好、穩定以及高量子產率的特性,其可透過分析物誘導消光作用(analyte-induced fluorescence quenching)用於氰離子的偵測,其偵測極限(limit of detection)為 5 nM。 | zh_TW |
dc.description.abstract | An one-pot approach has been developed to synthesize copper nanoclusters (Cu NCs) aggregates from copper nitrate and mercaptobenzoic acid (MBA) at 70 °C within 30 min. Cu NCs prepared separately from the three isomers of MBA exhibit different physical and optical properties. 2-Mercaptobenzoic acid (thiosalicylic acid, TA) and 4-mercaptobenzoic acid (4-MBA) allow preparation of blue- and red-emissive Cu NCs aggregates when excited at 338 and 324 nm, with quantum yields of 13.2% and 0.5%, respectively. On the other hand, Cu NCs aggregates prepared from 3-mercaptobenzoic acid (3-MBA) have very weak red-emission properties. Upon increasing pH values from 3.0 to 11.0, the fluorescence intensity of TA-Cu NCs and 4-MBA-Cu NCs aggregates increases and decreases, respectively. Unlike TA-Cu NCs aggregates, 4-MBA-Cu NCs aggregates show strong aggregation-induced emission. The water-dispersible, stable, and highly fluorescent TA-Cu NCs aggregates allow detection of CNˉ down to 5 nM, based on analyte-induced fluorescence quenching. | en |
dc.description.provenance | Made available in DSpace on 2021-06-16T02:55:35Z (GMT). No. of bitstreams: 1 ntu-104-R02223114-1.pdf: 2569010 bytes, checksum: c8bd1d10973373d68e96fc8099c3dbee (MD5) Previous issue date: 2015 | en |
dc.description.tableofcontents | 目錄
論文審定書 # 謝誌 i 中文摘要 iii 英文摘要 iv 目錄 v 圖目錄 vii 第一章 緒論 1 1.1 螢光貴金屬奈米團簇 1 1.2 螢光銅奈米團簇 4 1.3 螢光銅奈米團簇之製備方法 5 1.3.1 以聚合物穩定之銅奈米團簇 6 1.3.2 以DNA分子穩定之銅奈米團簇 8 1.3.3 以巰基分子穩定之銅奈米團簇 9 1.4 螢光奈米團簇之應用 11 1.5 研究動機 12 1.6 參考文獻 21 第二章 巰基苯甲酸異構物對銅奈米團簇聚集體的影響及氰離子偵測 26 2.1 前言 26 2.2 實驗方法 27 2.2.1 實驗試藥 27 2.2.2 銅奈米團簇聚集體的合成 27 2.2.3 實驗儀器 28 2.2.4 利用鄰巰基苯甲酸之銅奈米團簇聚集體偵測氰離子 29 2.2.5 偵測湖水樣品中的氰離子 30 2.3 實驗結果與討論 30 2.3.1 鄰巰基苯甲酸之銅奈米團簇聚集體的形成與特性 30 2.3.2 巰基苯甲酸之異構效應 32 2.3.3 鄰巰基苯甲酸之銅奈米團簇聚集體偵測氰離子之機制與真實樣品的偵測 35 2.4 結論 37 2.5 參考文獻 50 | |
dc.language.iso | zh-TW | |
dc.title | 巰基苯甲酸異構物對銅奈米團簇的製備及其螢光性質的影響 | zh_TW |
dc.title | Isomeric Effect of Mercaptobenzoic Acids on the Preparation and Fluorescent Properties of Copper Nanoclusters | en |
dc.type | Thesis | |
dc.date.schoolyear | 103-2 | |
dc.description.degree | 碩士 | |
dc.contributor.oralexamcommittee | 吳秀梅(Shiou-Mei Wu),胡焯淳(Cho-Chun Hu) | |
dc.subject.keyword | 異構效應,銅奈米團簇,螢光,聚集誘導發光,氰離子偵測, | zh_TW |
dc.subject.keyword | Isomeric effect,copper nanocluster,fluorescence,aggregation-induced emission,cyanide detection, | en |
dc.relation.page | 53 | |
dc.rights.note | 有償授權 | |
dc.date.accepted | 2015-07-09 | |
dc.contributor.author-college | 理學院 | zh_TW |
dc.contributor.author-dept | 化學研究所 | zh_TW |
顯示於系所單位: | 化學系 |
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