研究生: |
陳佳勇 Jia-Yong Chen |
---|---|
論文名稱: |
熱處理改質SK85高碳熱軋鋼電極於電-芬頓系統之性能研究 Application of SK85 High Carbon Steel Electrode Modified with Heat Treatment in Electro-Fenton System |
指導教授: |
王朝正
Chaur-Jeng Wang 王宜達 Yi-Ta Wang |
口試委員: |
王朝正
Chaur-Jeng Wang 王宜達 Yi-Ta Wang 高振宇 Chen-Yu Kao |
學位類別: |
碩士 Master |
系所名稱: |
工程學院 - 機械工程系 Department of Mechanical Engineering |
論文出版年: | 2021 |
畢業學年度: | 109 |
語文別: | 中文 |
論文頁數: | 77 |
中文關鍵詞: | 電-芬頓系統 、SK85 、空冷 、爐冷 、水淬 、回火 |
外文關鍵詞: | Electro-Fenton, SK85, Air cooling, Furnace cooling, Water quenching, Tempering |
相關次數: | 點閱:255 下載:2 |
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電-芬頓系統(Electro-Fenton)具針對環境汙染物進行降解之功能,陰極電極材料性質為影響系統降解速率參數之一,可藉由表面改質或表面處理技術進行電極特性優化。本研究擇取SK85高碳鋼為電-芬頓系統陰極電極,分別進行空冷處理、爐冷處理、水淬處理、水淬後200 ℃回火處理及水淬後600 ℃回火處理,探討不同微觀組織之電極對系統之效益與影響,期望可藉此熱處理提升電-芬頓系統之運行速率。
結果顯示,熱處理後愈安定整齊之晶格結構可獲得最大之導電度,因此水淬後600 ℃回火處理之SK85電極,具備最低片電阻值6.22 ×103 Ω/sq、最大響應電流密度1.69 mA/cm2及電荷捕獲量2.72 C/cm2。於電-芬頓系統運行方面,使用經水淬後600 ℃回火處理SK85電極,可使系統產生最大反應常數2.32 × 10-2 min-1。相對地,水淬後高能量之麻田散體扭曲晶格則有最大之電阻與最差的染料降解率。熱處理程序,可以改變電-芬頓系統之運行速率。
關鍵字:電-芬頓系統、SK85、空冷、爐冷、水淬、回火。
Abstract
The Electro-Fenton system poessesses the function of degrading the environmental pollutants, cathode properties is one of the parameter that affect the degradation rate of the system, which can be optimized by surface modification or surface treatment. In this study, SK85 was selected as the cathode electrode in the electro-Fenton system, and it were treated by air cooling, furnace cooling, water quenching, 200 ℃ tempering, and 600 ℃ tempering treatment, which explores the benefits and effects of electrodes for different metallographic structures, and it hopes that this will increase the efficiency of the electro-Fenton system.
The results show that after heat treatment, the more stable lattice structure can obtain the maximum conductivity; therefore, SK85 electrode tempered at 600 ℃ has the lowest sheet resistance value of 6.22 ×103 Ω/sq, and the maximum response current density 1.69 mA/cm2 and charge trapping 2.72 C/cm2. For the effciciency of the electro-Fenton system, the SK85 electrode tempered at 600 ℃ after water quenching has a maximum system reaction constant of 2.32 ×10-2 min-1. In contrast, after water quenching, the distorted lattice of martensite with high-energy exhibits the largest electrical resistance and the worst dye degradation rate. The heat treatment process can change the efficiency of the electro-Fenton system.
Keywords: Electro-Fenton, SK85, Air cooling, Furnace cooling, Water quenching, Tempering.
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