探讨制备颗粒规格化之奈米TiO2极板及其光触媒应用 - 朝阳科技大学 .DOC

探討製備顆粒規格化之奈米TiO2極板及其光觸媒應用 章日行1 洪志毅1 沈善鎰22 1朝陽科技大學環境工程與管理系 台中縣霧峰鄉吉峰東路168號 2國立中興大學環境工程學系 台中市國光路250號 摘要二氧化鈦具有良好之化學穩定性及性質常受到廣泛地使用二氧化鈦利用各貴重儀器特性分析另外，應用於觸媒電極甲基橙染料廢水之色度去除效率本研究係以市售二氧化鈦奈米粉末與反應溶液的配製，並利用拉升方式製備奈米二氧化鈦極板，試驗過程中以極板基材、批覆次數及分散劑為操作參數。由場發射掃描式電子顯微鏡（FE-SEM）觀察得知，奈米級二氧化鈦顆粒有效地積於基材上，且以圓形顆粒排列整齊，平均顆粒尺度為30 nm；奈米二氧化鈦極板（批覆次）染料色度之去除效率可達約%。 關鍵詞： Manufacture of nano TiO2 plate with specified-size particles and its application to photo-catalyst Jih-Hsing Chang1, Chih-Yi Hung1, Shan-Yi Shen 2, Cheng-Hung Tung2 1Department of Environmental Engineering and Management, Chaoyang University of Technology Tai-Chung 41349, Taiwan 2Department of Environmental Engineering, National Chung Hsing University, Tai-Chung 40227, Taiwan ABSTRACT Among many catalyst materials, titanium dioxide has been applied broadly due to its chemical stability and high-oxidation properties. For the previous manufacturing process, nano-scale size of TiO2 particles can be deposited on the substrate. However, it is important that the specified particles on the plate reflect the different-level products. Therefore, this study focuses on improving the manufacturing technique to obtain the specified particles on the plate and enhance the particle adhesion of the nano-scale titanium dioxide plate. The characterization of this plate under different operational conditions was analyzed. In addition, the specific plate was employed as the photocatalytic electrode to test the color removal efficiency of methyl orange dye wastewater. The nano-scale TiO2 plate was fabricated by dip-coating methods involved commercial TiO2 nano-scale powders (Degussa, p-25) and reaction solutions. During the experiment, different kinds of the substrate, numbers of the coating and weight of the dispersant as operational parameters. It can be shown that nano-scale size of TiO2 particles effectively pile on the ITO substrate with spherical shape that average particle size of 30 nm according to the images of field emission scanning electrical