Creation of rich oxygen vacancies in bismuth molybdate nanosheets to boost the photocatalytic nitrogen fixation performance under visible light illumination

doi:10.1016/j.cej.2020.127115

CORC > 金属研究所 > 中国科学院金属研究所

	Creation of rich oxygen vacancies in bismuth molybdate nanosheets to boost the photocatalytic nitrogen fixation performance under visible light illumination
	Li, Gui 1,2; Yang, Weiyi 3; Gao, Shuang 3; Shen, Qianqian 4,5; Xue, Jinbo 4,5; Chen, Kexin 2; Li, Qi 3
刊名	CHEMICAL ENGINEERING JOURNAL
	2021-01-15
卷号	404 页码:10
关键词	Oxygen vacancies Bismuth molybdate nanosheets Haber-bosch process Photocatalytic nitrogen fixation Visible light
ISSN号	1385-8947
DOI	10.1016/j.cej.2020.127115
通讯作者	Yang, Weiyi(wyyang@swjtu.edu.cn) ; Li, Qi(qiliuiuc@swjtu.edu.cn)
英文摘要	There is a huge demand for ammonia worldwide due to its extensive utilization in various technical applications. However, its production is still dependent on the traditional Haber-Bosch process under high temperature and pressure, which has enormous pressure on both the world energy supply and global warming issue. In this work, bismuth molybdate nanosheets rich in oxygen vacancies were created via NaOH treatment of bismuth molybdate nanosheets by a simple, robust and cost-effective process of NaOH etching treatment at room temperature to boost the photocatalytic nitrogen fixation to produce ammonia under visible light illumination at room temperature and ambient pressure. It was found that rich oxygen vacancies largely improved both the photo generated charge carrier separation and N-2 adsorption/activation capabilities of bismuth molybdate nanosheets. Thus, an enhanced, stable photocatalytic N-2 fixation performance with a superior average ammonia production rate of near 800 mu mol.g(-1).h(-1) was achieved under visible light illumination in repeated uses. Even better photocatalytic N-2 fixation performance was observed under simulated solar illumination. The photocatalyst showed good tolerance to oxygen, allowing the use of air rather pure N-2 in the reaction. Thus, it is promising for ammonia production from the photocatalytic N-2 fixation with solar energy by these bismuth molybdate nano sheets with rich oxygen vacancies, which could provide a greener and more sustainable alternative than the traditional Haber-Bosch process.
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] ; Shenyang National Laboratory for Materials Science[18LHPY009] ; Liaoning Baiqianwan Talents Program ; Natural Science Foundation of Liaoning Province of China[20180510042] ; Key Research and Development Program of Shanxi Province[201803D421079] ; Shanxi Scholarship Council of China[2020-050] ; State Key Laboratory of Advanced Processing and Recycling of Nonferrous Metals[18LHPY009]
WOS研究方向	Engineering
语种	英语
出版者	ELSEVIER SCIENCE SA
WOS记录号	WOS:000600984100004
资助机构	National Natural Science Foundation of China ; Fundamental Research Funds for the Central Universities ; Shenyang National Laboratory for Materials Science ; Liaoning Baiqianwan Talents Program ; Natural Science Foundation of Liaoning Province of China ; Key Research and Development Program of Shanxi Province ; Shanxi Scholarship Council of China ; State Key Laboratory of Advanced Processing and Recycling of Nonferrous Metals
内容类型	期刊论文
源URL	[http://ir.imr.ac.cn/handle/321006/158755]
专题	金属研究所_中国科学院金属研究所
通讯作者	Yang, Weiyi; Li, Qi
作者单位	1.Univ Sci & Technol China, Nano Sci & Technol Inst, Suzhou 215123, Peoples R China 2.Chinese Acad Sci, Shenyang Natl Lab Mat Sci, Inst Met Res, Shenyang 110016, Peoples R China 3.Southwest Jiaotong Univ, Key Lab Adv Technol Mat, Minist Educ, Sch Mat Sci & Engn, Chengdu 610031, Peoples R China 4.Minist Educ, Key Lab Interface Sci & Engn Adv Mat, Taiyuan 030024, Peoples R China 5.Taiyuan Univ Technol, Coll Mat Sci & Engn, Taiyuan 030024, Peoples R China
推荐引用方式 GB/T 7714	Li, Gui,Yang, Weiyi,Gao, Shuang,et al. Creation of rich oxygen vacancies in bismuth molybdate nanosheets to boost the photocatalytic nitrogen fixation performance under visible light illumination[J]. CHEMICAL ENGINEERING JOURNAL,2021,404:10.
APA	Li, Gui.,Yang, Weiyi.,Gao, Shuang.,Shen, Qianqian.,Xue, Jinbo.,...&Li, Qi.(2021).Creation of rich oxygen vacancies in bismuth molybdate nanosheets to boost the photocatalytic nitrogen fixation performance under visible light illumination.CHEMICAL ENGINEERING JOURNAL,404,10.
MLA	Li, Gui,et al."Creation of rich oxygen vacancies in bismuth molybdate nanosheets to boost the photocatalytic nitrogen fixation performance under visible light illumination".CHEMICAL ENGINEERING JOURNAL 404(2021):10.