DOI: 10.1016/j.jcou.2017.05.008
Scopus记录号: 2-s2.0-85019867509
论文题名: Heterojunction p-n-p Cu2O/S-TiO2/CuO: Synthesis and application to photocatalytic conversion of CO2 to methane
作者: Kim H.R. ; Razzaq A. ; Grimes C.A. ; In S.-I.
刊名: Journal of CO2 Utilization
ISSN: 22129820
出版年: 2017
卷: 20 语种: 英语
英文关键词: CO2 conversion
; Copper oxide
; Methane
; p-n-p junction
; S-doped TiO2
Scopus关键词: 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
英文摘要: 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. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/52722
Appears in Collections: 影响、适应和脆弱性
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Recommended Citation:
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