• 作者： Wei, Tsong-Yang; Wang, Yung-Yun; Wan, Chi-Chao
• 中文摘要： 本文利用線上酸度的測定來研究過渡金屬離子對過氧化氫氧化含酚水溶液的影響。因為過渡金屬離子之有效催化,每公升含酚1克的水溶液可以有效的在四分鐘內全部分解。本文針對數種過渡金屬離子之觸媒性質予以比較。實驗結果顯示,三價鐵離子是很好的觸媒選擇。其他因素諸如過渡金屬離子之含量,原先含酚水溶液的酸度以及溶液中過氧化氫與酚的莫耳比例均有最適的值; 含酚水溶液的酸度在不產生過渡金屬氫氧化物沈澱的前提下,酸度愈低觸媒效果愈好。
• 英文摘要： An in situ pH monitoring method has been used to study the effect of transition metal ions on the oxidation of phenol with hydrogen peroxide. Owing to the powerful catalytic effect of transition metal ions, an aqueous solution containing 1,000mg.l/sup -1/ phenol can be decomposed effectively within 4 minutes. The catalytic activities of different transition metal ions are compared. The experimental results indicate that the iron(III) ions are the excellent candidates. Factors affecting the catalytic activity such as the concentration of the added transition metal ions, the initial pH value of the phenol solution, and the molar ratio of H/sub 2/O/sub 2//Phenol are also studied. The results show that both the concentration of the added transition metal ions and the molar ratio of H/sub 2/O/sub 2//Phenol have optimum values and a high initial pH value of the phenol solution is preferred.
• 中文關鍵字： 酚氧化; 過渡金屬離子; Fenton試劑; 過氧化氫; 雙氧水; 觸媒作用
• 英文關鍵字： Phenol Oxidation; Transition Metal Ions; Fenton Reagent; Hydrogen Peroxide; Catalytic Action