高熵硒化物觸媒應用於電芬頓反應降解有機污染物之研究

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姓名

李佳慈(Chia-Tzu Li) 查詢紙本館藏

畢業系所

材料科學與工程研究所

論文名稱

高熵硒化物觸媒應用於電芬頓反應降解有機污染物之研究
(A Study on the Application of High Entropy Selenide Catalysts on the Degradation of Organic Pollutants by Electro-Fenton Reaction)

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至系統瀏覽論文 (2026-6-30以後開放)

摘要(中)

了應對現代工業化發展帶來的污水問題，採用一種創新的高熵材料來分解染料廢水中含有偶氮基團的有機污染物。本研究中，利用反應中產生的氫氧自由基(·OH)來攻擊有機汙染物中所含的偶氮鍵，進一步進行降解。本實驗利用Se_(AlCrCuFeNi)奈米材料作為活性觸媒，通過電芬頓反應來降解水溶液中的有機污染物。Se_HEC材料通過快速煆燒和硒化反應的方法製備而成，並且分析該觸媒材料之材料特性，進一步探討該材料在電芬頓反應中降解污染物的效率，研究高熵硒化物材料分解污染物的潛力。
在水溶液中，我觀察到Se_HEC陰極對甲基橙的去除效果高達98%，並且在酸性環境pH值為3下表現出良好的穩定性。此外，我進一步研究了應用電流和溶液酸鹼值等不同參數對降解效果的影響。此外，透過活性氧物質測試驗證了甲基橙降解途徑，進一步支持反應過程中·OH的重要作用。綜上所述，高熵硒化物材料展現了在電芬頓反應中有效降解有機污染物的優勢。這種技術具有潛在的應用前景，並為可持續發展提供了一個綠色能源的解決方案。

摘要(英)

To address the sewage issues arising from modern industrialization, an innovative approach employing a high-entropy material was adopted for the degradation of organic pollutants containing azo groups in dye wastewater. In this study, hydroxyl radicals generated during the reaction were utilized to attack the azo bonds in the organic pollutants for further degradation. Se_(AlCrCuFeNi) was used as the active catalyst for the degradation of organic pollutants through the electro-Fenton process. The Se_HEC material was prepared via rapid annealing and selenization reactions, and its material properties were analyzed to explore its efficiency in degrading pollutants during the electro-Fenton process, highlighting the potential of high-entropy selenide materials for pollutant decomposition.
In aqueous solutions, the Se_HEC cathode exhibited an impressive removal efficiency of 98% for methyl orange, demonstrating excellent stability at an acidic pH of 3. Furthermore, the influence of various parameters such as applied current and solution pH on the degradation efficiency was investigated. Additionally, the degradation pathway of methyl orange was confirmed through ROS test, further supporting the significant role of hydroxyl radicals in the reaction process. Se_HEC demonstrated advantages in effectively degrading organic pollutants in the electro-Fenton process. This technology holds promising potential for future applications and provides a green way for sustainable development.

關鍵字(中)

★ 電觸媒
★ 高熵陶瓷
★ 電芬頓法
★ 汙水降解
★ ESG

關鍵字(英)

★ electrocatalyst
★ high-entropy ceramics
★ electro-Fenton method
★ wastewater degradation
★ ESG

論文目次

摘要 i
Abstract ii
致謝 iii
目錄 iv
圖目錄 vii
表目錄 ix
第一章緒論 1
第二章文獻回顧 3
2.1 高熵材料簡介 3
2.2 高級氧化法 7
2.3 活性氧物質 13
2.4 硒化表面改質優勢 16
2.5 ESG環境友善的污染物降解之太陽能應用 17
第三章實驗部分 21
3.1 實驗藥品 21
3.2 硒化高熵陶瓷粉末製備 23
3.2.1快速煆燒製程 23
3.2.2硒化材料製程 23
3.3 高熵硒化物電極製備 25
3.4 電芬頓實驗步驟 27
3.5 儀器分析 28
3.5.1 X光繞射分析儀 (XRD) 28
3.5.2掃描式電子顯微鏡 (FE-SEM) 28
3.5.3 X-ray光電子光譜儀 ( XPS ) 28
3.5.4 X-ray螢光光譜儀 (nano-XRF) 29
第四章結果與討論 30
4.1 結構與特性分析 30
4.1.1 晶體結構與結構型態 30
4.1.2 微觀形貌與元素分布 30
4.1.3 元素表面化學態分析 32
4.2 材料降解成效分析 35
4.2.1高熵硒化物降解成效 35
4.2.2於不同酸鹼環境下之降解成效 37
4.2.3於不同電流下之降解成效 39
4.2.4 Se_HEC電極之穩定性測試 41
4.2.5 活性氧物質分析 41
4.2.6綠能電芬頓實驗 45
第五章結論 47
參考文獻 49

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指導教授

洪緯璿(Wei-Hsuan Hung)

審核日期

2023-8-16

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