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研究生:黃勇翰
研究生(外文):Yung-Han Huang
論文名稱:以氯化銀還原法製備奈米銀粒子之研究
論文名稱(外文):Preparation of Silver Nano-particles From the Reduction Processes of Silver Chloride
指導教授:薛文景
指導教授(外文):Wen-Ching Say
口試委員:周瑞崇張世賢
口試委員(外文):Rui-Chong ZhouShi-Xian Zhang
口試日期:2012-06-18
學位類別:碩士
校院名稱:國立臺北科技大學
系所名稱:材料科學與工程研究所
學門:工程學門
學類:材料工程學類
論文種類:學術論文
論文出版年:2012
畢業學年度:100
語文別:中文
論文頁數:64
中文關鍵詞:化學還原法奈米粒子界面活性劑
外文關鍵詞:chemical reduction methodnano-particlessurfactant
相關次數:
  • 被引用被引用:0
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  • 下載下載:4
  • 收藏至我的研究室書目清單書目收藏:0
本研究主要在探討利用回收出來的氯化銀,加入銨水中,利用化學還原法在室溫下以不同濃度配比的界面活性劑以及還原劑,來製備金屬奈米粒子的可能性,並對生成的金屬粒子之影響,如粒徑、形狀、光學性質等。以紫外光/可見光光譜儀做初步的分析判斷,再以粒徑分析儀、SEM、TEM及EDS等探討所得粒子的性質。根據紫外光/可見光光譜儀分析顯示,濃度為0.05 mM及0.1 mM的前驅物無法有效生成奈米銀粒子;相同前驅物濃度下,高濃度的界面活性劑配比其吸收強度較低。由粒徑分析結果,在固定其他參數下平均粒徑以低濃度還原劑作配比較大,同樣在固定其他參數下粒徑以高濃度界面活性劑作配比較大。經由SEM圖上顯示利用化學還原法製備出的銀奈米粒子,大多呈現不規則形,少數如圓球狀,長條狀等;成分分析上皆能得到含有銀元素之奈米粒子。B3C1參數其奈米粒子較無聚集且分散均勻,銀成份占最高達95%以上,為最佳參數組。

This study is to investigate the possibility and effect of using recycled silver chloride , adding to ammonium hydroxide by chemical reduction method at room temperature to prepare and generate metal nanoparticles with different concentrations of surfactant and reducing agent , so that discussing such as particle size, shape, optical properties, and so on. Preliminary to analysis and judge by the UV-visible spectrometer instrument, then particle size analysis, SEM, TEM and EDS to find and research the characteristic of the particles. Analysis showed that throw the UV-visible spectrometer, the concentration of the 0.05 mm and 0.1 mM precursors can not be generated to silver nano-particles. At the same precursor concentration, absorption strength is lower with high surfactant concentration. By the particle size analysis, the average particle size is larger with low reducing agent concentration under the other parameters fixed and larger with high surfactant concentration under the other parameters fixed. Through SEM images, the silver nano-particles prepared from chemical reduction processes are almost irregular-shaped, a few ball-shaped and bar-shaped. EDS analysis show there have naon-particles containing silver element. The nano-particles of B3C1 parameter are less aggregated but uniformly dispersed, and silver ingredient accounted is up to 95% and is the best parameter set.

中文摘要 i
英文摘要 ii
誌謝 iv
目錄 v
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 理論與文獻回顧 3
2.1 奈米材料 3
2.2 奈米粒子 8
2.3 界面活性劑 14
2.4 化學氧化還原法簡介 18
2.5 儀器及分析原理簡介 20
第三章 實驗部分 24
3.1 實驗藥品與設備 24
3.2 實驗流程 25
3.3 奈米銀粒子之特性分析 27
第四章 結果與討論 31
4.1 UV-Vis吸收光譜 31
4.2 粒徑分佈分析 38
4.3 電子顯微鏡(SEM及TEM)分析 48
第五章 結論 60
參考文獻 61


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