Recycling Agriculture: Valorization of Agricultural Residual MaterialsDepartment of Environmental Engineering / Lin, Kun-Yirew / Distinguished Professor
循環農業:農業剩餘資材及生質衍生物高值化轉換再利用【環境工程學系/林坤儀特聘教授】
論文篇名
英文:Preparation of metal organic frame derived MgO-porous carbon composite and its high catalytic activity in ozonation with excellent stability
中文:金屬有機框架衍生的MgO-多孔碳複合材料的製備及其在臭氧化中的高催化活性和優異的穩定性
期刊名稱 Journal of the Taiwan Institute of Chemical Engineers
發表年份,卷數,起迄頁數 2024 ,156: 105339
作者 Li, Yujie; Zhang, Ziyi; Zhang, Lin; Li, Yong; Lin, Kun-Yi Andrew(林坤儀)*; Tong, Shaoping
DOI 10.1016/j.jtice.2023.105339
中文摘要 背景
迄今為止,基於臭氧的高級氧化技術已被廣泛研究,但幾乎沒有成功地應用於實際廢水處理。製備高活性、高穩定性、對猝滅劑不敏感的催化劑仍然是該領域的一大挑戰。
方法
MOF-74在惰性氣體中煅燒得到MgO-多孔碳複合材料,其中2 nm MgO奈米粒子均勻分佈在多孔碳中。
重大發現
MgO-PC複合材料的比表面積(531.16 m²/g)約為MgO的15倍。 MgO-PC催化臭氧化結果表明,它不僅對不同有機物的臭氧化具有較高的活性,而且具有良好的穩定性。由於催化劑上的多孔碳塗層,在連續15次循環後,O 3 /MgO-PC中p -CBA的恆定降解速率僅從11.63×10 -2 min -1下降到9.36×10 -2 min -1最重要的是O 3 /MgO-PC對自由基猝滅劑有點不敏感,這在非均相催化臭氧化的進展中是一個令人驚訝的結果。
英文摘要 Background
Ozone-based advanced oxidation technology has been extensively studied so far, but is hardly successfully used in treating actual wastewater. Preparation of a catalyst with high activity and stability, and insensitivity to quencher is still a big challenge in this field.
Method
The calcination of MOF-74 in inert gas resulted in a composite of the MgO-porous carbon, in which 2 nm MgO nanoparticles were uniformly distributed in porous carbon.
Significant findings
The specific surface area of MgO-PC composite (531.16 m²/g) was about 15 times that of MgO. The results of MgO-PC catalytic ozonation indicated it had not only high activity in ozonation of different organic but also excellent stability. The constant rate of p-CBA degradation in O3/MgO-PC only decreased from 11.63 × 102 min1 to 9.36 × 102 min1 after consecutive 15 cycles of the catalyst owing to the coating of porous carbon on nano particles of MgO. The most important thing is that O3/MgO-PC is a little insensitive to the free radical quenchers, which is an amazing result in progress of heterogeneous catalytic ozonation.
發表成果與本中心研究主題相關性 透過本研究可進一步建立開發本研究計算所需之觸媒材料,並釐清可適合應用之環境條件!