Highly Selective, Defect-Induced Photocatalytic CO2 Reduction to Acetaldehyde by the Nb-Doped TiO(2)( )Nanotube Array under Simulated Solar Illumination

doi:10.1021/acsami.0c17174

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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, Xinzhu 1,2; Yang, Weiyi 3; Gao, Shuang 3; Xiao, Jun 1; Basu, Swastik 4; Yoshimura, Anthony 5; Shi, Yunfeng 4; Meunier, Vincent 4,5; Li, Qi 3
刊名	ACS APPLIED MATERIALS & INTERFACES
	2020-12-16
卷号	12 期号:50 页码:55982-55993
关键词	photocatalytic CO2 reduction Nb-doped TiO2 nanotube array CO(2 )adsorption and activation acetaldehyde simulated solar illumination
ISSN号	1944-8244
DOI	10.1021/acsami.0c17174
通讯作者	Li, Qi(qiliuiuc@outlook.com)
英文摘要	The 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.
资助项目	National 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研究方向	Science & Technology - Other Topics ; Materials Science
语种	英语
出版者	AMER CHEMICAL SOC
WOS记录号	WOS:000600202300041
资助机构	National 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
内容类型	期刊论文
源URL	[http://ir.imr.ac.cn/handle/321006/158918]
专题	金属研究所_中国科学院金属研究所
通讯作者	Li, Qi
作者单位	1.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
推荐引用方式 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.