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： Hetero-interface-engineered sulfur vacancy and oxygen doping in hollow Co9S8/Fe7S8 nanospheres towards monopersulfate activation for boosting intrinsic electron transfer in paracetamol degradation 中文：空心 Co9S8/Fe7S8 奈米球中的異質界面工程硫空位和氧摻雜可促進單過硫酸鹽活化，從而促進對乙醯氨基酚降解中的內在電子轉移 |
| 期刊名稱 | Applied Catalysis B: Environmental |
| 發表年份,卷數,起迄頁數 | 2023, 330, 122550 |
| 作者 | Khiem, Ta Cong; Huy, Nguyen Nhat; Kwon, Eilhann; Duan, Xiaoguang; Waclawek, Stanislaw; Bedia, Jorge; Tsai, Yu-Chih; Ebrahimi, Afshin; Ghanbari, Farshid; Lin, Kun-Yi Andrew(林坤儀)* |
| DOI | 10.1016/j.apcatb.2023.122550 |
| 中文摘要 | 設計富含缺陷的中空異質結構雙金屬硫化物被認為是加速單過硫酸鹽（MPS）活化的有效策略。在此，採用單步驟硫化來開發富含硫空位（SV）的空心氧摻雜Co9S8/Fe7S8（O-CSFS）。SV 和氧摻雜引起的高電活性位點、低電荷電阻和 O-CSFS 增加的電導率造就了 O-CSFS 的優越性能。活性氧（ROS）驅動途徑和電子轉移（ET）驅動途徑被揭示是O-CSFS/MPS系統中PCM降解的原因，但ET驅動途徑的作用更重要。ROS驅動的途徑主要歸因於Co原子的富電子低價態，它活化MPS產生不同的ROS，沒有•OH的貢獻，並且SO4•−的作用比1O2更大。同時，ET驅動途徑中摻雜的O、S物質和表面活性O-CSFS/MPS複合物從PCM獲得電子，從而增強了PCM的氧化。這項研究為 SV 和氧摻雜引起的 ET 增強的高效 PCM 降解提供了更多見解。 |
| 英文摘要 | Designing defects-rich hollow heterostructure bimetal sulfides is considered as an efficient strategy for accelerated monopersulfate (MPS) activation. Herein, mono-step sulfidation was employed to develop sulfur vacancy (SV)-rich hollow oxygen-doped Co9S8/Fe7S8 (O-CSFS). SV and oxygen doping-induced highly electroactive sites, low charge resistance, and increased conductivity of O-CSFS accounted for its superior performance. Reactive oxygen species (ROS)-driven pathway and electron transfer (ET)-driven pathway were revealed to be responsible for PCM degradation in O-CSFS/MPS system, but the role of ET-driven pathway was more significant. The ROS-driven pathway was mainly attributed to electrons-rich low valance of Co atoms which activated MPS to generate different ROS without •OH contribution and with a greater role of SO4•− than 1O2. Doped O, S species, and surface-active O-CSFS/MPS complex in ET-driven pathway, meanwhile, acquired electrons from PCM, resulting in enhanced PCM oxidation. This study provided more insight into ET-enhanced efficient PCM degradation induced by SV and oxygen-doping. |
| 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! |
