Metal-complexed covalent organic frameworks derived N-doped carbon nanobubble–embedded cobalt nanoparticle as a magnetic and efficient catalyst for oxone activation | IDCSA, NCHU

Metal-complexed covalent organic frameworks derived N-doped carbon nanobubble–embedded cobalt nanoparticle as a magnetic and efficient catalyst for oxone activation 2021-02-03

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：Metal-complexed covalent organic frameworks derived N-doped carbon nanobubble–embedded cobalt nanoparticle as a magnetic and efficient catalyst for oxone activation 中文：金屬絡合共價有機骨架衍生的 N 摻雜碳納米泡嵌入鈷納米顆粒作為 oxone 活化的磁性高效催化劑
期刊名稱	Journal of Colloid and Interface Science
發表年份,卷數,起迄頁數	2021, 591, 161-172
作者	Ha Trang Nguyen; Lee, Jechan; Kwon, Eilhann; Lisak, Grzegorz; Bui Xuan Thanh; Wen Da Oh; Lin, Kun-Yi Andrew(林坤儀)
DOI	10.1016/j.jcis.2021.01.108
中文摘要	雖然鈷納米粒子 (Co NPs) 可用於催化 Oxone 活化，但將 Co NPs 嵌入/固定在摻氮碳基材上以提供協同作用以提高催化性能更為有利。在此，本研究建議通過利用共價有機骨架 (COF) 作為前體來製造這種複合材料。通過COF與Co的絡合，可以合成Co-complexed COF（Co-COF）的穩定產物。這種 Co-COF 通過熱解進一步轉化為 N 摻雜的碳，其中嵌入了鈷 NP。由於其明確的 Co-COF 結構，熱解過程將 COF 轉化為具有氣泡狀形態的 N 摻雜碳。這種具有孔、磁性和 Co 的 Co NP 嵌入的 N 摻雜碳納米氣泡 (CoCNB) 應該是一種很有前途的催化劑。因此，CoCNB 顯示出比商業 Co₃O₄ NPs 更強的催化活性，以激活 Oxone 降解有毒的莧菜紅染料 (AMD)。 CoCNB 激活的 Oxone 還實現了比以前文獻中報導的 E_a 值顯著更低的 AMD 降解 E_a 值（即 27.9 kJ/mol）。此外，CoCNB 在高濃度 NaCl 和表面活性劑的存在下仍能有效完全消除 AMD，並且 CoCNB 還可連續重複使用五個週期。
英文摘要	While Cobalt nanoparticles (Co NPs) are useful for catalytic Oxone activation, it is more advantageous to embed/immobilize Co NPs on nitrogen-doped carbon substrates to provide synergy for enhancing catalytic performance. Herein, this study proposes to fabricate such a composite by utilizing covalent organic frameworks (COF) as a precursor. Through complexation of COF with Co, a stable product of Co-complexed COF (Co-COF) can be synthesized. This Co-COF is further converted through pyrolysis to N-doped carbon in which cobaltic NPs are embedded. Owing to its well-defined structures of Co-COF, the pyrolysis process transforms COF into N-doped carbon with a bubble-like morphology. Such Co NP-embedded N-doped carbon nanobubbles (CoCNB) with pores, magnetism and Co, shall be a promising catalyst. Thus, CoCNB shows a much stronger catalytic activity than commercial Co₃O₄ NPs to activate Oxone to degrade toxic Amaranth dye (AMD). CoCNB-activated Oxone also achieves a significantly lower E_a value of AMD degradation (i.e., 27.9 kJ/mol) than reported E_a values in previous literatures. Besides, CoCNB is still effective for complete elimination of AMD in the presence of high-concentration NaCl and surfactants, and CoCNB is also reusable over five consecutive cycles.
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!