• 作者： Huang, Ting-Chia; Chen, Dong-Hwang
• 中文摘要： 臭氧在有紫外光及無紫外光照射下於水溶液中分解之動力學,係分別於截流反應器與批式反應器中探討。兩者結果皆顯示,臭氧之分解為一階反應。由氫氧離子對臭氧分解速率的催化效應得知,臭氧在酸性及鹼性範圍中之主要分解機構並不相同。根據實驗數據可得,臭氧在無紫外光照射下,於pH 2.75至10.2、溫度12至 28.degree.C範圍內之分解速率實驗式。此外,研究發現,紫外光對臭氧分解速率之催化效應在酸性範圍中較為顯著,隨著pH值與溫度的增加,便逐漸變得較不重要。
• 英文摘要： The kinetics of ozone decomposition in aqueous solution with and without ultraviolet (UV) radiation were investigated in a stopped-flow reactor and a batch reactor, respectively. Both results indicated that the decomposition of ozone follows first order kinetics. The catalytic effect of hydroxide ion indicated that there are two different reaction mechanisms for the decomposition of ozone in acid and basic regions, respectively. An empirical rate equation was proposed for the decomposition of ozone without UV radiation over the pH range of 2.75 to 10.2 and the temperature range from 12 to 28.degree.C. In addition, the catalytic effect of UV radiation on ozone decomposition was found to be significant in acid region, while becoming less important with increasing pH and temperature.
• 中文關鍵字： 臭氧; 動力學; 分解; 紫外光; 截流反應器(制流反應器); 批式反應器
• 英文關鍵字： Ozone; Kinetics; Decomposition; Ultraviolet Radiation; Stopped- Flow Reactor; Batch Reactor