Engineering of bionic Fe/Mo bimetallene for boosting the photocatalytic nitrogen reduction performance
Engineering of bionic Fe/Mo bimetallene for boosting the photocatalytic nitrogen reduction performance
复制标题
仿生铁/钼双金属烯工程提高光催化氮还原性能
DOI：
10.1016/j.jcis.2021.09.078
复制
发表时间：
2021-09-27
影响因子：
9.9
通讯作者：
Chang, Haixin
中科院分区：
文献类型：
--
作者：
Li, Hongda;Deng, Honggao;Chang, Haixin
生物氮酶中的“FeMo辅因子”在氮还原过程中起决定性作用。本文将一种新型仿生铁/钼双金属烯应用于光催化氮还原。在Bi2Mo0.3W0.7O6 （BMWO）纳米晶体表面涂覆Fe/Mo双金属烯，可通过多电子氧化还原反应有效促进光生载流子的分离和输运，使光载流子寿命延长2.8倍。结果表明，Fe/Mo双金属烯包覆的BMWO纳米晶光催化剂的固氮活性明显增强(218.93 μ mol g(-1)h(-1))，是未修饰的BMWO纳米晶的4.8倍左右。这项工作为设计仿生铁/钼双金属烯修饰的无机半导体光催化剂提供了一种新的方法。(C) 2021爱思唯尔公司版权所有。
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 Bi2Mo0.3W0.7O6 (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 mu mol g(-1)h(-1)), 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. (C) 2021 Elsevier Inc. All rights reserved.