• 作者： Yang, Chien-Hsin
• 中文摘要： 釕鈦二成分氧化物 [(Ru+Ti)O/sub 2/]以熱分解法塗佈於鈦基材上。利用掃描電子顯微鏡檢視表面形態及元素分布。電化學特性則以循環伏安法(CV)及線性掃描伏安法(LSV)加以觀察，在(Ru+Ti)O/sub 2/電極上電解產生次氯酸的電流效率(CE)及其應用於高鹽分染料廢水的分解處理亦加以探討。含80 mol% Ti的電極(RT4)具有生成次氯酸的最高電流效率。影響次氯酸生成電流效率的主要因素為電解質流率、電流密度及氯離子濃度。而能量產率的主要影響因素為電流密度、氯離子濃度及電極距離。在低電流密度(300 mAcm/sup -2/)，高氯離子濃度(1 mol L/sup -1/)，及0.45cm的電極距離下，可獲致高能量產率。RT4電極以300 mAcm/sup -2/電流密度應用於染料廢水中有最佳的有機物及色素的去除效果。當通792 A．Min電量予染料廢水，可將紅黑色廢水變成淡黃色， 同時化學需氧量(COD)則由10,500降到1,250 mgL/sup -1/。
• 英文摘要： Ruthenium-titanium binary oxides [(Ru+Ti)O/sub 2/] were coated on titanium substrates by thermal decomposition. The surface morphologies and elemental analyses of these electrodes were examined by means of scanning electron microscopy. The electrochemical behaviors were characterized by cyclic voltammetry (CV) and linear-scan voltammetry (LSV) methods. The effects of electrolysis condition for the current efficiency (C. E.) of hypochlorite production on binary (Ru+Ti)O/sub 2/ electrodes and the treatment of a high salt-containing dye wastewater using this hypochlorite were also investigated . The highest C. E. for hypochlorite production exists on an RT4 (80 mol% Ti in coating solution) electrode. The major factors influencing C. E. for hypochlorite production are the electrolyte flow rate, current density, and chloride (Cl/sup -/) concentration. Major factors affecting energy yield are current density, Cl/sup -/ concentration, and electrode separation. For low current density (300 mAcm/sup -2/), high Cl/sup -/ concentration (1 mol L/sup -1/), and 0.45cm electrode separation, a high energy yield is obtained. The RT4 electrode exhibits the best removal of organics and chromophoric groups in the dye wastewater. On this electrode, better removal of oiganics and chromophoric groups is obtained at 300 mAcm /sup -2/. The color of black-red dye wastewater becomes light yellow when a charge of 792 A.bcdot.min was passed, while the chemical oxygen demand (COD) of this wastewater is decreased from 10,500 to 1,250mgL/sup -1/.
• 中文關鍵字： 釕鈦二成分氧化物; 次氯酸; 染料廢水; 電解氧化
• 英文關鍵字： Ruthenium-Titanium Binary Oxide; Hypochlorite; Dye Wastewater; Electrolytic Oxidation