近幾十年來，有機氟化物在各方面皆有廣泛的應用，但同時也有越來越多文獻指出它所造成的汙染危害已達到不可忽視的地步。本研究以二氟乙酸、三氟乙酸、三氟乙醇、三氟丙醇、四氟丙醇、五氟丙醇和全氟辛酸等多種有機氟化物為目標，並以H2O2 / UV和Na2S2O8 / UV兩種光化學氧化法對其進行礦化研究。實驗過程中針對這兩種方法的多項變因進行探討，包括曝氣氣體種類、UV光波長和氧化劑用量等，找出其對各種有機氟化物的最佳礦化條件。
結果顯示，這兩種氧化法在氧化劑用量相同的情況下，曝氣氣體為空氣時礦化效果優於氮氣；UV光波長254 nm時礦化效果優於UV光波長365 nm。不過在H2O2 / UV系統中，只有二氟乙酸和四氟丙醇可以有效的被礦化，達到90 %以上之礦化率，其他的三氟乙酸、三氟乙醇、三氟丙醇、五氟丙醇和全氟辛酸有機氟化物則無太大效果，礦化率皆不到40 %；而在Na2S2O8 / UV系統中，只要氧化劑充足，對於本研究中所有的有機氟化物皆能達到90 %以上之礦化率，甚至是全氟辛酸也可以，其中二氟乙酸和四氟丙醇更是能在10分鐘內達到100 %的礦化率。
反應途徑方面，吾人利用IC分析三氟乙醇、三氟丙醇及五氟丙醇礦化反應的中間產物後發現到皆有三氟乙酸的存在；四氟丙醇礦化反應的中間產物則是出現二氟乙酸，依此結果本研究提出以下反應途徑。首先有機氟醇礦化反應會由含－OH官能基的一端開始進行，先脫氟再氧化成有機氟羧酸，然後脫除一個二氧化碳轉為較小的分子，之後重複進行此過程逐步降解直至完全礦化。

In last decades, organofluorines are widely applied due to human activities. Their bioaccumulation and toxicological properties have caused great concern in environmental issues. This study adopted two photochemical oxidation processes, H2O2 / UV and Na2S2O8 / UV, for the mineralization of the target organofluorines, including difluoroacetic acid (DFA), trifluoroacetic acid (TFA), trifluoroethanol (TFE), 3,3,3-trifluoro-1-propanol, 2,2,3,3-tetrafluoro-1-propanol (TFP), 2,2,3,3,3-pentafluoro-1-propanol (PFP), and perfluoro-octanoic acid (PFOA). Aeration, UV irradiation, and oxidant dosage are the critical parameters to optimize the photochemical experiments.
The results of photochemical mineralization of TFP indicated that air purging was more efficient than was nitrogen. In addition, UV 254 nm lamp proved to be more effective than UV 365 nm using a specific amount of oxidant. H2O2 / UV system reduced more than 90% TOC of DFA and TFP solutions, but was incapable of mineralizing TFA, TFE, and 3,3,3-trifluoro-1-propanol, PFP and PFOA (TOC removal lower than 40 %). However, high mineralization level for all target organofluorines (TOC removal all above 90%) could be obtained by Na2S2O8 / UV system as a sufficient amount of oxidant was used, most notably DFA and TFP were completely mineralized in 10 min.
The ion chromatographic analyses revealed that TFA was an intermediate commonly recorded in the mineralization of TFE, 3,3,3-trifluoro-1-propanol, and PFP. Moreover, DFA was found during TFP decomposition. Hence, a general reaction pathway for the photochemical treatment of organofluorines was proposed: the mineralization of perfluoroalkyl compounds is initiated by de-hydroxyl of alcohol groups, and then oxidized into carboxylic acid by freeing fluorine atoms; the fluorinated carboxylic acid would release CO2 by radical attacks, and was hydrolyzed into a smaller fluorinated alcohol again. The loop of pathway took place until all remaining TOC turned into CO2, H2O, and fluoride ions.

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