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Efficient visible light nitrogen fixation with BiOBr nanosheets of oxygen vacancies on the exposed {001} Facets

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成果类型:
期刊论文
作者:
Li, Hao;Shang, Jian;Ai, Zhihui;Zhang, Lizhi*
通讯作者:
Zhang, Lizhi
作者机构:
[Zhang, Lizhi; Li, Hao; Ai, Zhihui; Shang, Jian] Cent China Normal Univ, Coll Chem, Inst Environm Chem, Key Lab Pesticide & Chem Biol,Minist Educ, Wuhan 430079, Peoples R China.
通讯机构:
[Zhang, Lizhi] C
Cent China Normal Univ, Coll Chem, Inst Environm Chem, Key Lab Pesticide & Chem Biol,Minist Educ, Wuhan 430079, Peoples R China.
语种:
英文
期刊:
Journal of the American Chemical Society
ISSN:
0002-7863
年:
2015
卷:
137
期:
19
页码:
6393-6399
基金类别:
National Natural Science Funds for Distinguished Young ScholarsNational Natural Science Foundation of China (NSFC)National Science Fund for Distinguished Young Scholars [21425728]; National Basic Research Program of China (973 Program)National Basic Research Program of China [2013CB632402]; National Science Foundation of ChinaNational Natural Science Foundation of China (NSFC) [21177048, 51472100]; Key Project of Natural Science Foundation of Hubei ProvinceNatural Science Foundation of Hubei Province [2013CFA114]
机构署名:
本校为第一且通讯机构
院系归属:
化学学院
摘要:
Even though the well-established Haber-Bosch process has been the major artificial way to 'fertilize' the earth, its energy-intensive nature has been motivating people to learn from nitrogenase, which can fix atmospheric N<inf>2</inf>to NH<inf>3</inf>in vivo under mild conditions with its precisely arranged proteins. Here we demonstrate that efficient fixation of N<inf>2</inf>to NH<inf>3</inf>can proceed under room temperature and atmospheric pressure in water using visible light illuminated BiOBr nanosheets of oxygen vacancies in the absence of any organic scavengers and precious-metal cocatalysts. The designed catalytic oxygen vacancies of BiOBr nanosheets on the exposed {001} facets, with the availability of localized electrons for-back-donation, have the ability to activate the adsorbed N<inf>2</inf>, which can thus be efficiently reduced to NH<inf>3</inf>by the interfacial electrons transferred from the excited BiOBr nanosheets. This study might open up a new vista to fix atmospheric N<inf>2</inf>to NH<inf>3</inf>through the less energy-demanding photochemical process. ©2015 American Chemical Society.

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