應用氫氧化鈉活化多壁奈米碳管複合碳氈電極之性能研究

Study on the performance of multi-wall carbon nanotube composite carbon felt electrode activated by sodium hydroxide

電-芬頓（Electro-Fenton）系統為處理有機汙廢水最有效的高級氧化程序；燃料電池陽極產電，陰極結合電-芬頓系統並具系統自我保持之功效，而電極材料性能為影響效能之重要因素，可透過表面修飾進行優化。本研究以氫氧化鈉（NaOH）對奈米碳管進行活化處理，冀能製備不亞於石墨烯性能之電極材料。實驗包含：（1）過氧化氫產能評估；（2）接觸角量測；（3）傅立葉轉換紅外線光譜量測；（4）掃描式電子顯微鏡觀察；（5）電-芬頓系統脫色試驗。
顯示，經活化後奈米碳管產生似石墨烯片狀結構，同時含氧官能基與親水性皆能獲得提升，其響應電流為1.30 mA/cm2；陰極系統染劑脫色效能相較於活化前，其反應速率可提升2.16倍，證實奈米碳管經活化後可有效提升電-芬頓系統處理效能，具燃料電池材料發展之潛力。

Electro-Fenton system is the most effective advanced oxidation process for the treatment of organic wastewater. Anode of fuel cell produces electricity and the cathode combines with the Electro-Fenton system possess the function of self-maintenance. The performance of the electrode affects the efficiency of the system, and it can be optimized by surface modification. In this study, sodium hydroxide (NaOH) was used to activate the carbon nanotubes (CNT) in order to prepare electrode with a performance as good as graphene (GR). The experiment includes: (1) The production of H2O2;(2) Contact angle measurement; (3) Fourier transform infrared spectrum measurement; (4) Scanning electron microscope observation; (5) The efficiency for Electro-Fenton system.
It was shown that the carbon nanotubes exhibited sheet-like structures after activation, and oxygen-containing functional groups and hydrophilicity property were improved; the response current was 1.30 mA/cm2; the efficiency of the cathode system was compared with that before activation, its reaction rate can be increased by 2.16 times. In summary, the activated carbon nanotubes can effectively improve the processing efficiency in the electro-Fenton system, which has the potential for the development of fuel cell.