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Highly Selective, Defect-Induced Photocatalytic CO2 Reduction to Acetaldehyde by the Nb-Doped TiO(2)( )Nanotube Array under Simulated Solar Illumination
Qian, Xinzhu1,2; Yang, Weiyi3; Gao, Shuang3; Xiao, Jun1; Basu, Swastik4; Yoshimura, Anthony5; Shi, Yunfeng4; Meunier, Vincent4,5; Li, Qi3
Corresponding AuthorLi, Qi(qiliuiuc@outlook.com)
2020-12-16
Source PublicationACS APPLIED MATERIALS & INTERFACES
ISSN1944-8244
Volume12Issue:50Pages:55982-55993
AbstractThe adsorption and activation of CO2 molecules on the surface of photocatalysts are critical steps to realize efficient solar energy-induced CO2 conversion to valuable chemicals. In this work, a defect engineering approach of a high-valence cation Nb-doping into TiO2 was developed, which effectively enhanced the adsorption and activation of CO2 molecules on the Nb-doped TiO2 surface. A highly ordered Nb-doped TiO2 nanotube array was prepared by anodization of the Ti-Nb alloy foil and subsequent annealing at 550 degrees C in air for 2 h for its crystallization. Our sample showed a superior photocatalytic CO2 reduction performance under simulated solar illumination. The main CO2 reduction product was a higher-energy compound of acetaldehyde, which could be easily transported and stored and used to produce various key chemicals as intermediates. The acetaldehyde production rate was over similar to 500 mu mol.g(-1).h(-1) with good stability for repeated long-time uses, and it also demonstrated a superior product selectivity to acetaldehyde of over 99%. Our work reveals that the Nb-doped TiO2 nanotube array could be a promising candidate with high efficiency and good product selectivity for the photocatalytic CO2 reduction with solar energy.
Keywordphotocatalytic CO2 reduction Nb-doped TiO2 nanotube array CO(2 )adsorption and activation acetaldehyde simulated solar illumination
Funding OrganizationNational Natural Science Foundation of China ; Fundamental Research Funds for the Central Universities ; Sichuan Science and Technology Program ; Shenyang National Laboratory for Materials Science ; State Key Laboratory of Advanced Processing and Recycling of Nonferrous Metals ; Liaoning Baiqianwan Talents Program ; Natural Science Foundation of Liaoning Province of China
DOI10.1021/acsami.0c17174
Indexed BySCI
Language英语
Funding ProjectNational Natural Science Foundation of China[51672283] ; National Natural Science Foundation of China[51602316] ; National Natural Science Foundation of China[51902271] ; Fundamental Research Funds for the Central Universities[A1920502051907-15] ; Fundamental Research Funds for the Central Universities[2682020CX07] ; Fundamental Research Funds for the Central Universities[2682020CX08] ; Sichuan Science and Technology Program[2020YJ0259] ; Sichuan Science and Technology Program[2020YJ0072] ; Shenyang National Laboratory for Materials Science[18LHPY009] ; State Key Laboratory of Advanced Processing and Recycling of Nonferrous Metals[18LHPY009] ; Liaoning Baiqianwan Talents Program ; Natural Science Foundation of Liaoning Province of China[20180510042]
WOS Research AreaScience & Technology - Other Topics ; Materials Science
WOS SubjectNanoscience & Nanotechnology ; Materials Science, Multidisciplinary
WOS IDWOS:000600202300041
PublisherAMER CHEMICAL SOC
Citation statistics
Cited Times:2[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/158919
Collection中国科学院金属研究所
Corresponding AuthorLi, Qi
Affiliation1.Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, Shenyang 110016, Peoples R China
2.Univ Sci & Technol China, Sch Mat Sci & Engn, Shenyang 110016, Peoples R China
3.Southwest Jiaotong Univ, Sch Mat Sci & Engn, Key Lab Adv Technol Mat, Minist Educ, Chengdu 610031, Peoples R China
4.Rensselaer Polytech Inst, Dept Mat Sci & Engn, Troy, NY 12180 USA
5.Rensselaer Polytech Inst, Dept Phys Appl Phys & Astron, Troy, NY 12180 USA
Recommended Citation
GB/T 7714
Qian, Xinzhu,Yang, Weiyi,Gao, Shuang,et al. Highly Selective, Defect-Induced Photocatalytic CO2 Reduction to Acetaldehyde by the Nb-Doped TiO(2)( )Nanotube Array under Simulated Solar Illumination[J]. ACS APPLIED MATERIALS & INTERFACES,2020,12(50):55982-55993.
APA Qian, Xinzhu.,Yang, Weiyi.,Gao, Shuang.,Xiao, Jun.,Basu, Swastik.,...&Li, Qi.(2020).Highly Selective, Defect-Induced Photocatalytic CO2 Reduction to Acetaldehyde by the Nb-Doped TiO(2)( )Nanotube Array under Simulated Solar Illumination.ACS APPLIED MATERIALS & INTERFACES,12(50),55982-55993.
MLA Qian, Xinzhu,et al."Highly Selective, Defect-Induced Photocatalytic CO2 Reduction to Acetaldehyde by the Nb-Doped TiO(2)( )Nanotube Array under Simulated Solar Illumination".ACS APPLIED MATERIALS & INTERFACES 12.50(2020):55982-55993.
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