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    題名: Characterization of ZnO powder prepared with or without process additive of glucose
    其他題名: 葡萄糖製程添加物對製得氧化鋅粉體之特性分析
    作者: 周宏宇;Chou, Hung-Yu
    貢獻者: 淡江大學化學工程與材料工程學系碩士班
    余宣賦;Yu, Hsuan-Fu
    關鍵詞: 氧化鋅;光觸媒;光催化活性;沉澱法;燃燒法;Zinc Oxide;Glucose;photocatalsdt;photocatalytic activity;precipitation;combustion
    日期: 2011
    上傳時間: 2011-12-28 18:50:10 (UTC+8)
    摘要: 本實驗結合沉澱法和燃燒法製備C/ZnO 光觸媒粉體。並以X-ray 繞射分析儀,遠紅外線光譜分析,熱重分析儀和熱差式熱分析儀,紫外光-可見光光譜分析儀,微量元素分析儀,電子掃描式顯微鏡及電子穿透式顯微鏡及比表面積測定儀 和 螢光光譜儀等儀器來分析其製備之C/ZnO光觸媒粉體特性。實驗結果顯示C/ZnO最佳製備條件為沉澱物:葡萄糖=1:0.9,煆燒溫度900℃,其物種(0.9-900℃)有最佳的光催化活性。我們也將所獲得C/ZnO奈米粉體之光催化能力以動力學探討並量化。C/ZnO物種 (0.9-900℃)之觸媒特性常數kA,m為0.86 L/g.min,比一般市售二氧化鈦粉體P25的觸媒特性常數kA,m=0.38 L/g.min高出非常多。
    C/ZnO photocatalysts were prepared by a method combining precipitation and combustion techniques. The prepared C/ZnO photocatalysts were characterized by X-ray diffraction, inferred spectroscopic analysis, thermogravimetric analysis and differential scanning calorimetry, UV-Vis absorption spectroscopy, energy dispersive X-ray analysis mapping, scanning electron microscopy, transmission electron microscopy, Brunauer–Emmett–Teller sorptometer, and photoluminescence spectra analysis. The results show that the optimum preparation condition for C/ZnO is precipitate : glucose=1 : 0.9, at 900℃, which this specimen (0.9-900℃) shows the best photocatalytic activity. The photocatalytic abilities of the obtained C/ZnO nanoparticles were kinetically studied. The kA,m of C/ZnO (0.9-900℃), was 0.86 L/g.min, which was much higher than that of P25 (kA,m=0.38 L/g.min).
    顯示於類別:[化學工程與材料工程學系暨研究所] 學位論文

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