Synthesis of strong light scattering absorber of TiO2-CMK-3/Ag for photocatalytic water splitting under visible light irradiation

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題名:	Synthesis of strong light scattering absorber of TiO2-CMK-3/Ag for photocatalytic water splitting under visible light irradiation
作者:	洪緯璿;Hung, Wei Hsuan;Lai, Sz Nian;Lo, An Ya
貢獻者:	工學院材料科學與工程研究所
關鍵詞:	absorption;carbon;electrodes;electron transfer;ion exchange;irradiation;light scattering;nanoparticles;photocatalysts;porous media;scanning electron microscopy;silver;spectrophotometers;titanium dioxide;X-ray diffraction
日期:	2015-04-29
上傳時間:	2026-04-23 11:46:13 (UTC+8)
出版者:	American Chemical Society;United States: American Chemical Society
摘要:	摘要： The enhanced water splitting photocurrent has been observed through plasmonic mesoporous composite electrode TiO2–CMK-3/Ag under visible light irradiation. Strong light absorption achieved from the integrations of ordered mesoporous carbon (CMK-3) and silver plasmonic nanoparticles (NPs) layer in the TiO2, which significantly increased the effective optical depth of TiO2–CMK-3/Ag photoelectrode. The carbon-based CMK-3 also increased the surface wetting behavior and conductivity of the photoelectrodes, which resulted in a higher ion exchange rate and faster electron transport. The synthesis of high crystalline TiO2–CMK-3/Ag composite photocatalyst was verified by X-ray diffraction (XRD) and scanning electron microscopy (SEM). Pronounced enhancement of light absorption of TiO2–CMK-3/Ag photoelectrode was confirmed by UV/vis spectrophotometers. Two orders of magnitude of the enhanced water splitting photocurrent were obtained in the TiO2–CMK-3/Ag composite photoelectrode with respect to TiO2 only. Finally, spatially resolved mapping photocurrents were also demonstrated in this study. 其他題名： ACS Appl. Mater. Interfaces 出版者： United States: American Chemical Society 出版日期： 2015-04-29 出處： ACS applied materials & interfaces, 2015-04, Vol.7 (16), p.8412-8418 資源來源： American Chemical Society Journals 版權： Copyright © American Chemical Society 識別號： ISSN: 1944-8244 識別號： ISSN: 1944-8252 識別號： EISSN: 1944-8252 識別號： DOI: 10.1021/am508684e 識別號： PMID: 25848834
顯示於類別:	[材料科學與工程研究所 ] 期刊論文

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