Oxygen vacancy-rich MoO3-x nanobelts for photocatalytic N-2 reduction to NH3 in pure water

Li, Yehuan1; Chen, Xin1; Zhang, Mingjian1; Zhu, Yuanmin2; Ren, Wenju1; Mei, Zongwei1; Gu, Meng2; Pan, Feng1

2019-02-07

10.1039/c8cy02357c

Catalysis Science & Technology   影响因子和分区

2044-4753

2044-4761

Photocatalytic nitrogen fixation is a promising sustainable and green strategy for NH3 synthesis. The development of an efficient photocatalyst is the key to make this approach applicable. In this work, MoO3-x nanobelts are synthesized by a hydrothermal method, and they are firstly utilized as photocatalysts for N-2 fixation without using sacrificial reagents and precious-metal co-catalysts at room temperature and atmospheric pressure. It is found that oxygen vacancies (O-VS) are located on the (001) and (100) planes by STEM analysis. The surface O-VS can chemisorb the N-2 molecules by a side-on model on (001) while an end-on model on the (100) plane and elongate their bond length, playing a critical role in the photocatalytic N-2 fixation activity. This result provides a new insight into developing efficient photocatalysts with original oxygen vacancies.

SCI ; EI

英语

通讯

Shenzhen Peacock Plan[KQTD2014062714543296]

Chemistry

Chemistry, Physical

WOS:000459731200024

ROYAL SOC CHEMISTRY

20190706488584

Ammonia ; Atmospheric pressure ; Bond length ; Molybdenum oxide ; Nanobelts ; Nitrogen fixation ; Photocatalysts ; Photocatalytic activity

Atmospheric Properties:443.1 ; Nanotechnology:761 ; Physical Chemistry:801.4 ; Chemical Reactions:802.2 ; Chemical Agents and Basic Industrial Chemicals:803 ; Chemical Products Generally:804 ; Inorganic Compounds:804.2 ; Solid State Physics:933 ; Crystalline Solids:933.1

Web of Science

1.Peking Univ, Shenzhen Grad Sch, Sch Adv Mat, Beijing, Peoples R China
2.Southern Univ Sci & Technol, Dept Mat Sci & Engn, Shenzhen, Peoples R China

Li, Yehuan,Chen, Xin,Zhang, Mingjian,et al. Oxygen vacancy-rich MoO3-x nanobelts for photocatalytic N-2 reduction to NH3 in pure water[J]. Catalysis Science & Technology,2019,9(3):803-810.

Li, Yehuan.,Chen, Xin.,Zhang, Mingjian.,Zhu, Yuanmin.,Ren, Wenju.,...&Pan, Feng.(2019).Oxygen vacancy-rich MoO3-x nanobelts for photocatalytic N-2 reduction to NH3 in pure water.Catalysis Science & Technology,9(3),803-810.

Li, Yehuan,et al."Oxygen vacancy-rich MoO3-x nanobelts for photocatalytic N-2 reduction to NH3 in pure water".Catalysis Science & Technology 9.3(2019):803-810.