https://scholars.lib.ntu.edu.tw/handle/123456789/446305
標題: | Dye-sensitized TiO2-catalyzed photodegradation of sulfamethoxazole under blue or yellow light | 作者: | Lu N. Yeh Y.-P. Wang G.-B. Feng T.-Y. YANG-HSIN SHIH Chen D. |
關鍵字: | Emerging contaminant; Photodegradation; Pt-based dye; Sulfamethoxazole (SMX); Visible light irradiation | 公開日期: | 2017 | 卷: | 24 | 期: | 1 | 起(迄)頁: | 489-499 | 來源出版物: | Environmental Science and Pollution Research | 摘要: | Visible light-induced photocatalysis is potentially advantageous and could be an efficient approach to degrade contaminants because it can be used to selectively target specific wavelength for decomposition of organic contaminants in water and wastewater. This study demonstrates the photodegradation of sulfamethoxazole (SMX) using [Pt(3,3′-dicarboxy-2,2′-bpy)(1,2-benzenedithiolate)] (Complex 1)-sensitized and [Pt(4,4′-dicarboxy-2,2′-bpy)(1,2-benzenedithiolate)] (Complex 2)-sensitized titanium dioxide (TiO2) under blue or yellow light (420 or 580 nm, respectively) irradiation in water. The Complex 1-sensitized TiO2 photocatalytic oxidation of SMX reached almost 100 % removal under 420 nm irradiation for 3 h in water. In addition, the formation of hydroxyl radicals can be facilitated by bubbling O2 during the photodegradation in which an effective decomposition of SMX was observed. Based on HPLC and UV-Vis studies of the decomposed products, it was found that SMX underwent cleavage of aromatic rings during the photodegradation process. © 2016, Springer-Verlag Berlin Heidelberg. |
URI: | https://scholars.lib.ntu.edu.tw/handle/123456789/446305 | ISSN: | 09441344 | DOI: | 10.1007/s11356-016-7815-6 | SDG/關鍵字: | catalysis; decomposition; dye; inorganic compound; irradiation; light intensity; organic pollutant; oxidation; photodegradation; photolysis; wastewater; wastewater treatment plant; coloring agent; sulfamethoxazole; titanium; titanium dioxide; water pollutant; chemistry; light; photolysis; radiation response; water pollutant; Coloring Agents; Light; Photolysis; Sulfamethoxazole; Titanium; Water Pollutants, Chemical |
顯示於: | 農業化學系 |
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