Effect of Al-Cu Bimetallic Components in a TiO2 Framework for High Hydrogen Production on Methanol/Water Photo-Splitting

Title
Effect of Al-Cu Bimetallic Components in a TiO2 Framework for High Hydrogen Production on Methanol/Water Photo-Splitting
Author(s)
강미숙김아영[김아영]
Keywords
VISIBLE-LIGHT IRRADIATION; N-DOPED TIO2; PHOTOCATALYST; WATER; DECOMPOSITION; EVOLUTION; ANATASE
Issue Date
201206
Publisher
HINDAWI PUBLISHING CORPORATION
Citation
INTERNATIONAL JOURNAL OF PHOTOENERGY
Abstract
This study investigated the production of hydrogen over TiO2, Cu-TiO2, Ag-TiO2, and Cu-Ag-TiO2 photocatalysts incorporated with Cu and Ag ions by a solvothermal method. The Ag metal (200, 220, and 311 plane) peaks at 2 theta = 44.50, 64.00, and 77.60 degrees were presented in the Ag-incorporated TiO2 catalysts. The CuO component (Cu2p(3/2) and Cu2p(1/2) at 930.4 and 949.5 eV) was exhibited in the X-ray photon spectroscopy (XPS) band of the Cu-incorporated TiO2 photocatalyst. All the absorption plots in the Cu-, Ag-, and Cu-Ag-incorporated catalysts showed excitation characteristics; an asymmetric tail was observed towards a higher wavelength due to scattering. The intensity of the photoluminescence (PL) curves of Cu-Ag-TiO(2)s was smaller, with the smallest case being observed for Cu(0.05)-Ag(0.05)Ti(0.9)O-2 and Cu(0.03)-Ag(0.07)Ti(0.9)O-2. Based on these optical characteristics, the production of H-2 from methanol/water photodecomposition over the Cu(0.03)-Ag(0.07) Ti(0.9)O-2 photocatalyst at 8,750 mmol after 8 h was greater than that over the other photocatalysts.
URI
http://hdl.handle.net/YU.REPOSITORY/28155http://dx.doi.org/10.1155/2012/618642
ISSN
1110-662X
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이과대학 > 화학생화학부 > Articles
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