Characterization of ZnO powder prepared with or without process additive of glucose

淡江大學機構典藏 > 工學院 > 化學工程與材料工程學系暨研究所 > 學位論文 > Item 987654321/74537

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题名:	Characterization of ZnO powder prepared with or without process additive of glucose
其它题名:	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
贡献者:	淡江大學化學工程與材料工程學系碩士班余宣賦;Yu, Hsuan-Fu
关键词:	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
上传时间:	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).
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