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：Ultrafine cobalt nanoparticle-embedded leaf-like hollow N-doped carbon as an enhanced catalyst for activating monopersulfate to degrade phenol
中文：超細鈷納米顆粒嵌入葉狀中空氮摻雜碳作為增強催化劑活化單過硫酸鹽降解苯酚
期刊名稱 JOURNAL OF COLLOID AND INTERFACE SCIENCE
發表年份,卷數,起迄頁數 2022, 606, 929-940
作者 Duong Dinh Tuan; Liu, Wei-Jie; Kwon, Eilhann; Thanh, Bui Xuan; Munagapati, Venkata Subbaiah; Wen, Jet-Chau; Lisak, Grzegorz; Hu, Chechia; Lin, Kun-Yi Andrew(林坤儀)*
DOI 10.1016/j.jcis.2021.08.027
中文摘要 雖然鈷 (Co) 是激活單過硫酸鹽 (MPS) 以降解有機污染物的最有效的非貴金屬，但鈷納米粒子 (NP) 很容易聚集，失去活性。由於許多努力試圖將 Co NPs 固定在載體/基材上以盡量減少聚集問題，最近空心結構碳基材料 (HSCM) 由於其獨特的物理和化學性質而被認為是有前途的載體。在此, 在本研究中, 通過使用特殊類型的 ZIF (即 ZIF-L) 作為前體開發了一種特殊的 HSCM。通過單寧酸（TA）的一步化學蝕刻，所得產物仍保持原始ZIF-L的葉狀形態，但該產物內部變為中空，隨後轉化為超細Co-NP嵌入的中空結構通過熱解的 N 摻雜碳 (CoHNC)。有趣的是，CoHNC 表現出比 CoNC（無中空結構）和商業 Co3O4 NPs 更好的催化活性，用於激活 MPS 以降解苯酚。 CoHNC + MPS 降解苯酚的 Ea 值為 44.3 kJ/mol。此外，CoHNC還能夠在多個循環中有效地激活MPS降解苯酚，而催化活性沒有任何顯著變化，表明CoHNC是一種很有前途的多相催化劑，用於激活MPS降解水中的有機污染物。
英文摘要 While cobalt (Co) stands out as the most effective non-precious metal for activating monopersulfate (MPS) to degrade organic pollutants, Co nanoparticles (NPs) are easily aggregated, losing their activities. As many efforts have attempted to immobilize Co NPs on supports/substrates to minimize the aggregation issue, recently hollow-structured carbon-based materials (HSCMs) have been regarded as promising supports owing to their distinct physical and chemical properties. Herein, in this study, a special HSCM is developed by using a special type of ZIF (i.e., ZIF-L) as a precursor. Through one-step chemical etching with tannic acid (TA), the resultant product still remains leaf-like morphology of pristine ZIF-L but the inner part of this product becomes hollow, which is subsequently transformed to ultrafine Co-NP embedded hollow-structured N-doped carbon (CoHNC) via pyrolysis. Interestingly, CoHNC exhibits superior catalytic activities than CoNC (without hollow structure) and the commercial Co3O4 NPs for activating MPS to degrade phenol. The Ea value of phenol degradation by CoHNC + MPS was determined as 44.3 kJ/mol. Besides, CoHNC is also capable of effectively activating MPS to degrade phenol over multiple-cycles without any significant changes of catalytic activities, indicating that CoHNC is a promising heterogeneous catalyst for activating MPS to degrade organic pollutants in water.
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!