A facile strategy to fabricate plasmonic Cu modified TiO2 nano-flower films for photocatalytic reduction of CO2 to methanol

被引：123
作者：
Liu, Enzhou [1 ]
Qi, Lulu [1 ]
Bian, Juanjuan [1 ]
Chen, Yihan [1 ]
Hu, Xiaoyun [2 ]
Fan, Jun [1 ]
Liu, Hanchen [3 ]
Zhu, Changjun [3 ]
Wang, Qiuping [3 ]
机构：
[1] NW Univ Xian, Sch Chem Engn, Xian 710069, Peoples R China
[2] NW Univ Xian, Dept Phys, Xian 710069, Peoples R China
[3] Xian Polytech Univ, Sch Sci, Xian 710048, Peoples R China
来源：
MATERIALS RESEARCH BULLETIN | 2015年 / 68卷
关键词：
Nanostructures; Semiconductors; Thin films; Optical properties; Catalytic properties; VISIBLE-LIGHT; COPPER NANOPARTICLES; AU NANOPARTICLES; CARBON-DIOXIDE; DOPED TIO2; AG; NANOSTRUCTURES; NANOCOMPOSITES; NANOMATERIALS; PERFORMANCES;
D O I：
10.1016/j.materresbull.2015.03.064
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Cu nanoparticles (NPs) deposited TiO2 nano-flower films were fabricated using a combination of a hydrothermal method and a microwave-assisted reduction process. The investigations indicated that Cu NPs and TiO2 film both exhibit visible light harvesting properties based on localized surface plasmon resonance (LSPR) of Cu NPs and unique nanostructures of TiO2 film. Fluorescence quenching was observed because the recombination of charge carriers was effectively suppressed by Cu NPs deposition. The experimental results indicate that Cu/TiO2 films exhibit better activity for the photocatalytic reduction of CO2 due to the charge transfer property and LSPR effect of Cu NPs. The CH3OH production rate reached 1.8 mu mol cm(-2) h(-1) (energy efficiency was 0.8%) over 0.5 Cu/TiO2 film under UV and visible light irradiation, which was 6.0 times higher than that observed over pure TiO2 film. In addition, a tentative photocatalytic mechanism is proposed to understand the experimental results over the Cu modified TiO2 nano-flower films. (C) 2015 Elsevier Ltd. All rights reserved.
引用
收藏
页码：203 / 209
页数：7
相关论文
共 61 条
[21]   Photocatalytic Conversion of CO2 to Hydrocarbon Fuels via Plasmon-Enhanced Absorption and Metallic Interband Transitions [J].
Hou, Wenbo ;
Hung, Wei Hsuan ;
Pavaskar, Prathamesh ;
Goeppert, Alain ;
Aykol, Mehmet ;
Cronin, Stephen B. .
ACS CATALYSIS, 2011, 1 (08) :929-936
[22]   Anatase TiO2 nanobelts with plasmonic Au decoration exhibiting efficient charge separation and enhanced activity [J].
Hsu, Chiajen ;
Shen, Yi ;
Wei, Zi ;
Liu, Dong ;
Liu, Fuqiang .
JOURNAL OF ALLOYS AND COMPOUNDS, 2014, 613 :117-121
[23]   Surface-Plasmon-Induced Visible Light Photocatalytic Activity of TiO2 Nanospheres Decorated by Au Nanoparticles with Controlled Configuration [J].
Kochuveedu, Saji Thomas ;
Kim, Dong-Pyo ;
Kim, Dong Ha .
JOURNAL OF PHYSICAL CHEMISTRY C, 2012, 116 (03) :2500-2506
[24]   Photocatalytic reduction of CO2 over TiO2 based catalysts [J].
Koci, Kamila ;
Obalova, Lucie ;
Lacny, Zdenek .
CHEMICAL PAPERS, 2008, 62 (01) :1-9
[25]   Photocatalytic reduction of carbon dioxide to methanol by Cu2O/SiC nanocrystallite under visible light irradiation [J].
Li, Huiling ;
Lei, Yonggen ;
Huang, Ying ;
Fang, Yueping ;
Xu, Yuehua ;
Zhu, Li ;
Li, Xin .
JOURNAL OF NATURAL GAS CHEMISTRY, 2011, 20 (02) :145-150
[26]   Copper(II) imidazolate frameworks as highly efficient photocatalysts for reduction of CO2 into methanol under visible light irradiation [J].
Li, Jingtian ;
Luo, Deliang ;
Yang, Chengju ;
He, Shiman ;
Chen, Shangchao ;
Lin, Jiawei ;
Zhu, Li ;
Li, Xin .
JOURNAL OF SOLID STATE CHEMISTRY, 2013, 203 :154-159
[27]   Preparation, characterization and photocatalytic activity of visible-light-driven plasmonic Ag/AgBr/ZnFe2O4 nanocomposites [J].
Li, Xiaojuan ;
Tang, Duanlian ;
Tang, Fan ;
Zhu, Yunyan ;
He, Changfa ;
Liu, Minghua ;
Lin, Chunxiang ;
Liu, Yifan .
MATERIALS RESEARCH BULLETIN, 2014, 56 :125-133
[28]   Adsorption of CO2 on heterostructure CdS(Bi2S3)/TiO2 nanotube photocatalysts and their photocatalytic activities in the reduction of CO2 to methanol under visible light irradiation [J].
Li, Xin ;
Liu, Haoliang ;
Luo, Deliang ;
Li, Jingtian ;
Huang, Ying ;
Li, Huiling ;
Fang, Yueping ;
Xu, Yuehua ;
Zhu, Li .
CHEMICAL ENGINEERING JOURNAL, 2012, 180 :151-158
[29]  
Linic S, 2011, NAT MATER, V10, P911, DOI [10.1038/nmat3151, 10.1038/NMAT3151]
[30]   Photovoltaic performance enhancement of CdS quantum dot-sensitized TiO2 photoanodes with plasmonic gold nanoparticles [J].
Liu, Aiping ;
Ren, Qinghua ;
Zhao, Ming ;
Xu, Tao ;
Yuan, Ming ;
Zhao, Tingyu ;
Tang, Weihua .
JOURNAL OF ALLOYS AND COMPOUNDS, 2014, 589 :218-225
1234567