One-step synthesized 3D-structured MOF foam for efficient and convenient catalytic reduction of nitrogen-containing aromatic compounds | IDCSA, NCHU

One-step synthesized 3D-structured MOF foam for efficient and convenient catalytic reduction of nitrogen-containing aromatic compounds 2021-02-08

Recycling Agriculture: Rising value of Agricultural Waste【Department of Environmental Engineering / Lin, Kun-Yirew / Distinguished Professor】
循環農業：農業廢棄物高價值化【環境工程學系/林坤儀特聘教授】

論文篇名	英文：One-step synthesized 3D-structured MOF foam for efficient and convenient catalytic reduction of nitrogen-containing aromatic compounds 中文：一步合成3D結構MOF泡沫，高效便捷地催化還原含氮芳香化合物
期刊名稱	Journal of Water Process Engineering
發表年份,卷數,起迄頁數	2021 , 40, 101933
作者	Lin, Jia-Yin; Chen, Pen-Yuan; Kwon, Eilhann; Oh, Wen Da; You, Siming; Huang, Chao-Wei; Ghanbari, Farshid; Wi-Afedzi, Thomas; Lin, Kun-Yi Andrew(林坤儀)
DOI	10.1016/j.jwpe.2021.101933
中文摘要	金屬有機框架 (MOF) 因 4-硝基苯酚 (4-NP) 還原而受到越來越多的關注；然而，現有的使用 MOF 還原 4-NP 的研究都涉及貴金屬。此外，報導的 MOF 是非常細的粉末，不便於實際實施。因此，本研究建議開發一種 MOF 泡沫，該泡沫具有泡沫的宏觀特徵和 MOF 的微觀功能。具體而言，選擇泡沫銅作為大孔基材，作為多孔載體和金屬源，通過一步電化學方法合成銅基 MOF，HKUST-1。由此產生的 HKUST-1 泡沫可以作為一種方便的催化劑，在間歇式或流通式反應中將 4-NP 還原為 4-AP。 4-NP 還原的相應活化能 (E_a) (43.3 kJ/mol) 也顯著低於報導的催化劑的 E_a 值，包括貴金屬催化劑，而相應的 TOF (48.3 min^-1) 高於許多其他催化劑. HKUST-1 泡沫還可以有效催化亞甲藍 (MB) 的還原，使其顏色完全脫色。此外，HKUST-1 泡沫可以重複使用多次，並保持其減少 4-NP 和 MB 的活性。這些特徵證明 HKUST-1 泡沫是一種實用、方便且可重複使用的 4-NP 還原催化劑。
英文摘要	Metal Organic Frameworks (MOFs) receive increasing attention for 4-nitrophenol (4-NP) reduction; however the existing studies of using MOFs for 4-NP reduction all involve with noble metals. Moreover, the reported MOFs are very fine powders which are inconvenient for realistic implementation. Thus, the present study proposes to develop a MOF foam which exhibits macroscale features of foam and microscale functionalities of MOFs. Specifically, a Cu foam is selected as the macroporous substrate which serves as a porous support and the metal source for synthesizing Cu-based MOF, HKUST-1, via an one-step electrochemical method. The resulting HKUST-1 foam can act as a convenient catalyst for reduction of 4-NP to 4-AP in either batch-type or flow-thru-type reactions. The corresponding activation energy (E_a) of 4-NP reduction (43.3 kJ/mol) is also significantly lower than E_a values of reported catalysts, including noble metal catalysts, whereas the corresponding TOF (48.3 min⁻¹) is higher than many other catalysts. HKUST-1 foam can also efficiently catalyze reduction of methylene blue (MB) to fully decolorize its color. In addition, HKUST-1 foam could be reused over multi-cycles and retain its activity for reduction of 4-NP and MB. These features validate that HKUST-1 foam is a practical, convenient, and reusable catalyst for reduction of 4-NP.
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!