教師資料查詢 | 類別: 期刊論文 | 教師: 董崇禮CHUNG-LI DONG (瀏覽個人網頁)

標題:Nanogap engineered plasmon-enhancement in photocatalytic solar hydrogen conversion
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
語言英文
ISSN2196-7350
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
國別德國
公開徵稿
出版型式,電子版
相關連結
SDGs
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