- 學位論文
製備銅錳氧尖晶石奈米材料於高級氧化程序移除有機染料之應用
Synthesis of Spinel Copper-Manganese-Oxide Nanomaterials for the Removal of Organic Dyes in Fenton-like Processes
摘要
現今社會關注之水資源議題，因工業革命的興起後使得水污染日益嚴重，水處理的方式更是受到各界關注。高級氧化程序(Advanced Oxidation Process, 簡稱AOPs)，由實場運用之芬頓程序(Fenton Process)衍生，是以異相觸媒來催化氧化劑，並使其產生具有高氧化還原電位之自由基，移除水中之有機汙染物，相較於前身之芬頓程序，不會有因均相觸媒造成之二次汙染的問題。 本研究利用氯化錳四水合物、一水合乙酸銅、聚乙烯吡咯烷酮、乙二醇、尿素做為前驅物，以水熱法160℃反應合成銅/錳複合金屬，並將其置於空氣環境下以450℃進行鍛燒，形成尖晶石結構之複合金屬，其中添加聚乙烯吡咯烷酮能幫助在合成銅/錳複合金屬不會產生其他複合物；尖晶石結構具有良好之磁、光、電等效應，與金屬氧化物做結合，來提升高及氧化程序的效能。因此本研究透過合成尖晶石結構之銅錳複合金屬，藉由反應中銅錳價態可來回轉換及光催化之特性，於高級氧化程序中降解羅丹明 B，另外也與不同參數調整操作比較，如: 染料濃度、氧化劑濃度、觸媒濃度、環境酸鹼度、自由基抑制劑等進行討論，以達到降解有機汙染物之目標。
並列摘要
The water resources issues that concern society today have become increasingly severe due to the rise of the industrial revolution, and water treatment methods have attracted attention from all walks of life. Advanced Oxidation Process (AOPs), derived from the Fenton Process used in the field, uses a heterogeneous catalyst to catalyze the oxidant, and make it generate free radicals with high redox potential to remove Compared with the previous Fenton process, the organic pollutants in the water will not have the problem of secondary pollution caused by homogeneous catalysts. In this study, using manganese chloride tetrahydrate, copper acetate monohydrate, polyvinylpyrrolidone, ethylene glycol, and urea as precursors, the copper/manganese composite metal was synthesized by a hydrothermal method at 160 °C and placed in an air environment It is calcined at 450 °C to form a composite metal with a spinel structure. The addition of polyvinylpyrrolidone can help to synthesize copper/manganese composite metal without producing other complexes; the spinel structure has good magnetic, optical, and electrical properties. The equivalent effect, combined with a metal oxide, improves the high and oxidation processes' performance. Therefore, in this study, by synthesizing a copper-manganese composite metal with a spinel structure, the valence state of copper-manganese can be converted back and forth and photocatalysis in the reaction to degrade Rhodamine B in an advanced oxidation process. In addition, it is also compared with different parameter adjustment operations. , such as dye concentration, oxidant concentration, catalyst concentration, environmental pH, free radical inhibitors, etc. are discussed to achieve the goal of degrading organic pollutants.
參考文獻
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