globalchange  > 影响、适应和脆弱性
DOI: 10.1016/j.jcou.2017.05.008
Scopus ID: 2-s2.0-85019867509
Heterojunction p-n-p Cu2O/S-TiO2/CuO: Synthesis and application to photocatalytic conversion of CO2 to methane
Author: Kim H.R.; Razzaq A.; Grimes C.A.; In S.-I.
Source Publication: Journal of CO2 Utilization
ISSN: 22129820
Publishing Year: 2017
Volume: 20
Language: 英语
Keyword: CO2 conversion ; Copper oxide ; Methane ; p-n-p junction ; S-doped TiO2
Scopus Keyword: Architecture ; Copper oxides ; Electromagnetic wave absorption ; Heterojunctions ; Light absorption ; Methane ; Nanotubes ; Titanium dioxide ; Yarn ; Annealing process ; Material architecture ; N - p junctions ; Nanotube arrays ; Photo-catalytic ; Photocatalytic materials ; Photogenerated charge ; S-doped TiO ; Carbon dioxide
English Abstract: Graphical abstract: Photocatalytic conversion of CO2 to fuel is a topic of great current interest. The problem is a challenging one, requiring a photocorrosion-stable, industrially-scalable, broad-spectrum light absorbing semiconductor, the energy bands of which align with the CO/CO2 and H2O/O2 potentials. Herein we report the synthesis of a unique p-n-p heterojunction material architecture, Cu2O/S-doped TiO2 micro-blocks covered with CuO nanowires, using anodization and annealing processes. The photocatalytic material shows excellent performance in the photocatalytic conversion of CO2 and water vapor to methane under AM 1.5G illumination. The heterojunction material architecture exhibits a methane yield of 2.31μmolm−2h−1, a rate approximately ten times higher than TiO2 nanotube array films synthesized using similar anodization conditions. The improved performance of the heterojunctioned material architecture appears due to improved light absorption and efficient separation of the photogenerated charge. © 2017 Elsevier Ltd.
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被引频次[WOS]:24   [查看WOS记录]     [查看WOS中相关记录]
Document Type: 期刊论文
Appears in Collections:影响、适应和脆弱性

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Kim H.R.,Razzaq A.,Grimes C.A.,et al. Heterojunction p-n-p Cu2O/S-TiO2/CuO: Synthesis and application to photocatalytic conversion of CO2 to methane[J]. Journal of CO2 Utilization,2017-01-01,20
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