設施農業：光能設施於農業固碳之應用【材料科學與工程學系/宋振銘 教授】
| 論文篇名 | 英文：Magnetically-manipulatable and self-cleaning lab-on-a-bubble Ag@TiO2@Fe3O4 hollow spheres and their application in SERS detection and photocatalytic degradation 中文：磁控自潔實驗室氣泡Ag@TiO2@Fe3O4中空球型SERS基板製備及與於光催化降解之應用 |
| 期刊名稱 | Applied Surface Science |
| 發表年份,卷數,起迄頁數 | 2024, 673, no.160897 |
| 作者 | Song, Jenn-Ming(宋振銘); Yang, Wei-Rong; Hsu, Pei-Kai; Chen, Shih-Yun; Yasuda, Kiyokazu |
| DOI | 10.1016/j.apsusc.2024.160897 |
| 中文摘要 | 在本研究中，採用噴霧熱解和後續沉積開發了一種創新的高靈敏度自清潔實驗室氣泡 SERS 基底：Ag NPs@TiO2@Fe3O4 空心球。可重複使用且磁力可控的基底由氧化鐵空心球（Fe3O4）組成，表面覆蓋TiO2殼，銀奈米顆粒（Ag NP）沉積在外表面。實驗結果表明，這種新型複合SERS基底的檢測極限（LOD）低至10-10M，增強因子（EF）達到1.01 X107。如果每次測試後都進行紫外線自清潔，則經過 10 次可重複回收測試後，其損失僅為 3%。這種新型基質即使在可見光下也對亞甲基藍（MB）染料具有良好的光催化降解能力。此時，MB解離率高達99.8%，反應速率常數（K）達0.0271/min。利用這一點，也證明了透過可見光下自清潔可重複使用SERS檢測的可行性。 |
| 英文摘要 | In this study, an innovative highly sensitive self-cleaning Lab-on-a-bubble SERS substrate: Ag NPs@TiO2@Fe3O4 hollow spheres, was developed using spray pyrolysis and following depositions. The reusable and magnetically controllable substrate consists of iron oxide hollow spheres (Fe3O4) covered by a TiO2 shell and silver nanoparticles (Ag NPs) deposited on the outer surface. Experimental results show that this new composite SERS substrate exhibited a low limit of detection (LOD) down to 10-10M, and the enhancement factor (EF) reached 1.01 X107. It suffered only 3 % loss after 10 repeatable recycle tests if the self-cleaning under UV was performed after each test. This novel substrate possessed good photocatalytic degradation ability for methylene blue (MB) dyes even under visible light. In that case, MB can be dissociated up to 99.8 % and the reaction rate constant (K) reached 0.0271/min. Taking advantage of this, the feasibility of reusable SERS detection through self-cleaning under visible light was also demonstrated. |
