以不同電極活化過硫酸鹽降解水中偶氮染料RB-5之研究

Degradation of Azo Dye (RB-5) in Water Using Persulfate Activated by Different Electrodes

陳宏庠(Hung-Hsiang Chen) ； 張育禎(Yu-Chen Chang) ； 王靖翔(Ching-Hsiang Wang) ； 彭彥彬(Yen-Ping Peng) ； 陳谷汎(Ku-Fan Chen)

《土壤及地下水污染整治》 7卷2期 (2022/12) Pp. 137-146

https://doi.org/10.6499/JSGR.202212_7(2).0004

摘要

本研究以批次實驗評估電化學過硫酸鹽氧化法對偶氮染料Reactive Black 5（RB-5）之去除效率。不同電壓條件下對RB-5去除實驗結果顯示，雙石墨電極活化過硫酸鹽去除RB-5效率為10≈7>5>3>0V。鉑／鈦電極組別結果顯示，對RB-5去除效率為10>7>5>3>0V。施加的電壓越大，RB-5之去除效率越佳。活化過硫酸鹽系統中，RB-5之去除主要來自陽極氧化及陰極活化過硫酸鹽產生自由基之貢獻。石墨／石墨電極對RB-5之去除率較佳，未來可使用石墨電極結合過硫酸鹽系統處理水中之污染物。本研究成果將可提供電化學過硫酸鹽氧化法未來在水體整治上應用之參考。

關鍵字

電化學過硫酸鹽氧化法 ； Reactive Black 5（RB-5） ； 石墨電極 ； 鈦電極 ； 鉑電極

並列摘要

In this study, batch experiments were performed to remove Reactive Black 5 (RB-5) via electrochemical persulfate oxidation. The efficiency for removing RB-5 with persulfate activated by graphite/graphite electrodes was 10 ≈ 7 > 5 > 3 > 0 V. The RB-5 removal efficiency with persulfate activated by Pt/Ti electrodes was10 > 7 > 5 > 3 > 0 V. Higher voltage application caused higher removal efficiency of RB-5. RB-5 removal by graphite/graphite-activated persulfate was better than that by Pt/Ti electrodes. Therefore, graphite/graphite electrodes are suitable to combine with persulfate to treat water pollutants. The results of this study will contribute to future applications of electrochemical persulfate oxidation.

並列關鍵字

electrochemical persulfate oxidation ； Reactive Blue 5 (RB-5) ； graphite ； titanium ； platinum

參考文獻

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