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：Coordination polymer-derived cobalt-embedded and N/S-doped carbon nanosheet with a hexagonal core-shell nanostructure as an efficient catalyst for activation of oxone in water 中文：具有六方核殼納米結構的配位聚合物衍生的鈷嵌入和N / S摻雜的碳納米片，可作為有效的催化劑來活化水中的酮 |
| 期刊名稱 | JOURNAL OF COLLOID AND INTERFACE SCIENCE |
| 發表年份,卷數,起迄頁數 | 2020,579 :109-118 |
| 作者 | Tuan, Duong Dinh; Oh, Wen Da; Ghanbari, Farshid; Lisak,Grzegorz; Tong, Shaoping*; Lin, Kun-Yi Andrew(林坤儀)* |
| DOI | 10.1016/j.jcis.2020.05.033 |
| 中文摘要 | 隨著基於硫酸根基（SR）的高級氧化工藝的實施越來越多，Oxone已被廣泛用於生成SR。儘管Co 3 O 4納米顆粒（NP）作為活化Oxone的有希望的催化劑已被廣泛接受，但Co 3 O 4 NP傾向於在水中聚集，從而失去其反應活性。因此，許多嘗試已經使Co 3 O 4固定化。載體（尤其是碳質底物）上的NP，因為Co NP與碳底物的組合具有協同效應，可增強催化活性。此外，摻雜有雜原子（N和S）的碳基質進一步提高了電子轉移和反應性。因此，甚至有望將Co NPs固定在N / S摻雜的碳（NSC）上以形成共嵌入的NSC（稱為CoNSC）以增強Oxone的活化作用。在這項研究中，提出了一種簡便易行的技術，通過對Co和三硫氰尿酸（TTCA）的配位聚合物進行簡單的碳化處理來製備這種CoNSC。所得的CoNSC表現出具有核-殼結構的片狀六邊形形態，並且Co NPs很好地嵌入了N / S摻雜的碳質基質中，使其成為氧酮活化的有利的非均相催化劑。由於將偶氮紅素S（ARS）脫色用作Oxone活化的模型反應，因此CoNSC的催化活性高於原始Co3 O 4和NSC用於Oxone活化以使ARS脫色。與其他報導的催化劑相比，CoNSC 對於ARS脫色也具有較低的E a。CoNSC還可以在多個週期內重複使用並穩定用於Oxone活化，而不會損失催化活性。這些特徵證明，CoNSC是一種有希望且有用的基於鈷的Oxone活化催化劑。 |
| 英文摘要 | As sulfate-radical (SR)-based advanced oxidation processes are increasingly implemented, Oxone has been frequently-used for generation of SR. While Co3O4 nanoparticle (NP) has been widely-accepted as a promising catalyst for activating Oxone, Co3O4 NPs tend to aggregate in water, losing their reactivity. Thus, many attempts have immobilized Co3O4 NPs on supports, especially carbonaceous substrates, because combination of Co NPs with carbon substrates offers synergistic effects for boosting catalytic activities. Moreover, carbon substrates doped with hetero-atoms (N and S) further increase electron transfer and reactivity. Therefore, it is even promising to immobilize Co NPs onto N/S-doped carbon (NSC) to form Co-embedded NSC (denoted as CoNSC) for enhancing Oxone activation. In this study, a convenient and facile technique is proposed to prepare such a CoNSC via a simple carbonization treatment of a coordination polymer of Co and trithiocyanuric acid (TTCA). The resulting CoNSC exhibits the sheet-like hexagonal morphology with the core–shell configuration, and Co NPs are well-embedded into the N/S-doped carbonaceous matrix, making it an advantageous heterogeneous catalyst for Oxone activation. As Azorubine S (ARS) decolorization is employed as a model reaction of Oxone activation, CoNSC exhibits a higher catalytic activity than pristine Co3O4 and NSC for Oxone activation to decolorize ARS. In comparison to the other reported catalysts, CoNSC also possesses a much lower Ea for ARS decolorization. CoNSC can be also reusable and stable for Oxone activation over multiple cycles without loss of catalytic activity. These features validate that CoNSC is a promising and useful Co-based catalyst for Oxone activation. |
