Citation: Lulu ZHANG, Yahui HOU, Yunfei LU, Rui LI, Jianxin LIU. In-situ generated ordered-disordered Bi₂WO₆ homojunction for enhanced photocatalytic nitrogen fixation performance[J]. Chinese Journal of Inorganic Chemistry, ;2026, 42(3): 606-616. doi: 10.11862/CJIC.20250277 shu

In-situ generated ordered-disordered Bi₂WO₆ homojunction for enhanced photocatalytic nitrogen fixation performance

Lulu ZHANG ^1,, ,
Yahui HOU ² ,
Yunfei LU ³ ,
Rui LI ² ,
Jianxin LIU ^2,,

1.
Department of Materials and Chemical Engineering, Taiyuan University, Taiyuan 030032, China
2.
College of Environmental and Ecology, Key Laboratory of Coal Science and Technology, Ministry of Education, Taiyuan University of Technology, Taiyuan 030024, China
3.
Shanxi Installation Group Co., Ltd., Taiyuan 030032, China

Corresponding author: Lulu ZHANG, zhanglulu2660@163.com Jianxin LIU, liujx0519@163.com
Received Date: 3 September 2025
Revised Date: 9 December 2025

Figures(7)

A collection of ordered-disordered Bi₂WO₆ homojunction catalysts was prepared in-situ through a facile one-step hydrothermal process, and their photocatalytic nitrogen fixation to synthesize ammonia performance was evaluated. Results showed that ordered-disordered Bi₂WO₆ (OD-2) obtained by adding 1.5 mL of ethylene glycol during preparation exhibited the optimal nitrogen fixation performance, with a nitrogen fixation rate of 114.92 μmol·g^-1·h^-1. However, its crystal counterpart, Bi₂WO₆ (BWO), lacked nitrogen-fixation activity. In-situ diffuse reflectance-Fourier transform infrared technique (DR-FTIR), electrochemical tests, and energy band structure analysis confirmed that the surface disordered structure in OD-2 not only promoted nitrogen activation but also enabled the effective separation of photogenerated electron-hole pairs at the ordered-disordered interface, facilitating the interface electrons transfer to the surface disordered structure of OD-2 and reacting with N₂ adsorbed on the disordered structure, thereby promoting the smooth progress of the nitrogen fixation reaction.
- ordered-disordered homojunction,
- Bi₂WO₆,
- photocatalytic nitrogen fixation
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通讯作者: 陈斌, bchen63@163.com

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沈阳化工大学材料科学与工程学院沈阳 110142

In-situ generated ordered-disordered Bi2WO6 homojunction for enhanced photocatalytic nitrogen fixation performance

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通讯作者: 陈斌, bchen63@163.com

In-situ generated ordered-disordered Bi₂WO₆ homojunction for enhanced photocatalytic nitrogen fixation performance