期刊論文
| 學年 | 104 |
|---|---|
| 學期 | 1 |
| 出版（發表）日期 | 2015-09-22 |
| 作品名稱 | Nanogap engineered plasmon-enhancement in photocatalytic solar hydrogen conversion |
| 作品名稱（其他語言） | |
| 著者 | Jie Chen; Chung-Li Dong; Yuan-Chang Du; Da-Ming Zhao; Shao-Hua Shen |
| 單位 | |
| 出版者 | |
| 著錄名稱、卷期、頁數 | Advanced Materials Interfaces 2(14), pp. 1500280 |
| 摘要 | Graphitic carbon nitride modified with plasmonic Ag@SiO2 core–shell nanoparticles (g-C3N4/Ag@SiO2) are proposed for enhanced photocatalytic solar hydrogen evolution under visible light. Nanosized gaps between the plasmonic Ag nanoparticles (NPs) and g-C3N4 are created and precisely modulated to be 8, 12, 17, and 21 nm by coating SiO2 shells on the Ag NPs. The optimized photocatalytic hydrogen production activity for g-C3N4/Ag@SiO2 is achieved with a nanogap of 12 nm (11.4 μmol h−1) to be more than twice as high as that of pure g-C3N4 (5.6 μmol h−1). The plasmon resonance energy transfer (PRET) effect of Ag NPs is innovatively proved from a physical view on polymer semiconductors for photoredox catalysis. The PRET effect favors the charge carrier separation by inducing electron–hole pairs efficiently formed in the near-surface region of g-C3N4. Furthermore, via engineering the width of the nanogap, the PRET and energy-loss Förster resonance energy transfer processes are perfectly balanced, resulting in considerable enhancement of photocatalytic hydrogen production activity over the g-C3N4/Ag@SiO2 plasmonic photocatalyst. |
| 關鍵字 | core–shell nanoparticles;photocatalysis;silver; urface modification;surface plasmon resonance |
| 語言 | en |
| ISSN | 2196-7350 |
| 期刊性質 | 國外 |
| 收錄於 | SCI |
| 產學合作 | |
| 通訊作者 | Shao-Hua Shen |
| 審稿制度 | 是 |
| 國別 | DEU |
| 公開徵稿 | |
| 出版型式 | ,電子版 |
| 相關連結 |
機構典藏連結 ( http://tkuir.lib.tku.edu.tw:8080/dspace/handle/987654321/104587 ) |