Hydrogenation Engineering of Bimetallic Ag–Cu-modified-titania Photocatalysts for Production of Hydrogen
學年 110
學期 2
出版（發表）日期 2022-04-01
作品名稱 Hydrogenation Engineering of Bimetallic Ag–Cu-modified-titania Photocatalysts for Production of Hydrogen
作品名稱（其他語言）
著者 Tsai-Te Wang, Yi-Ting Yang, Suh-Ciuan Lim, Chao-Lung Chiang, Je-Sie Lim, Yu-Chang Lin, Chun-Kuo Peng, Ming-Chang Lin, Yan-Gu Lin
單位
出版者
著錄名稱、卷期、頁數 Catalysis Today, 388, 79-86
摘要 The efficacy of treatment with hydrogen and Ag-Cu co-deposition on TiO2 photocatalysts has been investigated computationally and experimentally. The hydrogenated Ag-Cu with co-loaded TiO2 (H:(Ag-Cu/TiO2)) achieved a photoactivity about 110 times that of pristine TiO2, which corresponds to a rate of 1.16 mmol h−1 g−1 for hydrogen generation. Soft X-ray spectra and quantum-chemical calculations indicate that the notable promotion of photoactivity on H:(Ag-Cu/TiO2) is ascribable to the synergy between new electronic states and a lattice distortion. The soft X-ray absorption spectra (XAS) indicated that the TiO6 octahedral symmetry and the Ti 3d- orbital orientation are significantly affected by the Ag-Cu decoration and the hydrogenation treatment. The mechanisms involved in this photocatalysis were studied with soft XAS in situ, which showed that the photoexcited electrons transfer from the bimetallic Ag-Cu to the TiO2 conduction band as the photoresponse of this composite photocatalyst. The strategy of coupling hydrogenation with bimetallic Ag-Cu onto TiO2-based photocatalysis provides a facile and promising solution to other environmental and energy applications.
關鍵字
語言 en
ISSN
期刊性質 國外
收錄於 SCI SSCI Scopus
產學合作
通訊作者
審稿制度 1
國別 NLD
公開徵稿
出版型式 ,電子版
SDGS 可負擔的潔淨能源,產業創新與基礎設施