利用稻殼製備SBA-15和添加TiO2 對甲基橙之光催化研究 = Preparation of SBA-15 from rice husk and addition of TiO2 for photocatalytic degradation on methyl orange / 王聖曄.
- 作者： 王聖曄
- 其他題名：
- Preparation of SBA-15 from rice husk and addition of TiO2 for photocatalytic degradation on methyl orange
- 主題： 中孔材料 SBA-15 二氧化鈦 甲基橙 光催化. , mesoporous material SBA-15 TiO2 methyl orange photocatalytic activity.
- URL：
電子資源
- 一般註：指導教授: 劉宗宏. 學年度: 110.
- 書目註：參考書目： 葉.
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讀者標籤：
- 系統號： 005174242 | 機讀編目格式
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摘要註
本研究以稻殼農業廢棄物萃取矽製備中孔材料RH-SBA-15，實驗中先以稻殼製備矽酸鈉，並以P123為界面活性劑以合成RH-SBA-15中孔材料，再以合成的RH-SBA-15，加入二氧化鈦(TiO2)以探討對甲基橙(MO)進行光催化研究，並針對不同實驗條件探討最佳光催化之效果。製備完成後之樣品利用XRD測其晶相、FESEM觀察樣品外觀、TEM觀察細微結構、FTIR測定官能基、BET測定比表面積、UV-Vis DRS測定材料吸收波峰、XPS測定元素鍵結能以及UV/Vis測定染料濃度。 光催化實驗中探討染料pH值、染料濃度、催化劑負載量、煅燒溫度、不同光源及催化劑添加量對其降解影響，找尋最佳光催化條件。研究結果以染料pH為2，濃度於20ppm、催化劑負載量30wt%、煅燒溫度800°C、燈源波長於254nm及催化劑添加量至80mg時有最佳的光催化效果，回收實驗也發現催化劑重複利用後降解效率微幅下降，但整體仍維持於80%以上，自由基反應性探討也發現O2-對催化劑降解影響較明顯。. This research studied the preparation of RH-SBA-15 from rice husk agriculture waste. During the experiment, the source of silicon is from sodium silicate, and Symmetrical Triblock Copolymer P123 was used as the surfactant to produce the material. After the SBA-15 was produced, adding TiO2 to alter material property and implementing the photocatalysis on methyl orange(MO) with different parameters such as pH value, MO concentration, TiO2 loading percentage, light source, calcined temperature, and different dosage of material. In addition, the materials were inspected by different instruments such as XRD, FESEM, TEM, FTIR, BET, DRS , XPS and UV/Vis. The results indicate when methyl orange pH=2, initial concentration 20ppm, light source 254nm, TiO2 30wt% loading, calcined temperature 800°C and 80mg has the best photocatalytic activity. The recycle experiment also reveals that efficiency maintain 80% above after fourth cycles, in addition, adding different scavenger discovers O2- influence the degradation efficiency..