School of Microelectronics and Materials Engineering, Guangxi University of Science and Technology, Liuzhou 545006, China; Quantum-Nano Matter and Device Lab, State Key Laboratory of Material Processing and Die & Mould Technology, School of Materials Science and Engineering, Huazhong University of Science and Technology, Wuhan 430074, China.
School of Optics and Photonics, Image Engineering & Video Technology Lab, Beijing Institute of Technology, Beijing 100081, China.
J Colloid Interface Sci. 2022 Feb;607(Pt 2):1625-1632. doi: 10.1016/j.jcis.2021.09.078. Epub 2021 Sep 17.
The "FeMo cofactors" in biological nitrogenase play a decisive role in nitrogen reduction. Herein, a novel bionic Fe/Mo bimetallene was applied in photocatalytic nitrogen reduction. The surface coating Fe/Mo bimetallene of BiMoWO (BMWO) nanocrystals could effectively promote the separation and transportation of photogenerated carriers by multi-electron redox reactions and deliver 2.8 times longer photo-carrier lifetime. Consequently, the nitrogen fixation activity of Fe/Mo bimetallene-coated BMWO nanocrystal photocatalyst was obviously enhanced (218.93 μmol gh), which was about 4.8 times that of unmodified BMWO nanocrystals. This work provides a novel approach to design bionic Fe/Mo bimetallene-modified inorganic semiconductor photocatalysts for nitrogen reduction.
生物固氮酶中的“FeMo 辅因子”在氮还原中起决定性作用。在此，一种新型仿生 Fe/Mo 双金属烯被应用于光催化氮还原。BiMoWO（BMWO）纳米晶体表面包覆的 Fe/Mo 双金属烯可以通过多电子氧化还原反应有效地促进光生载流子的分离和传输，并提供 2.8 倍更长的光载流子寿命。因此，固氮活性明显增强了 Fe/Mo 双金属烯包覆 BMWO 纳米晶光催化剂（218.93 μmol g h），约为未改性 BMWO 纳米晶的 4.8 倍。这项工作为设计仿生 Fe/Mo 双金属烯修饰的无机半导体光催化剂用于氮还原提供了一种新方法。
