|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).