论文标题
有效的光催化氮从阳光下的空气固定在阳光下通过铁掺杂$ _3 $
Efficient photocatalytic nitrogen fixation from air under sunlight via iron-doped WO$_3$
论文作者
论文摘要
从阳光下，从空气固定的光催化氮可以显着促进碳中和。它是将来取代工业哈伯·博世（Haber Bosch）流程的理想途径。开发了一个含有氧气空位的Fe掺杂的分层WO $ _3 $光催化剂，可以在大气压下在阳光下直接从空气中固定氮。铁掺杂提高了光生电子的运输效率。光催化效率大约是纯WO $ _3 $的4倍。通过正交实验检查了最佳的氮固定条件，其氮固定性能可以达到477 $μ\ text {g} \ cdot \ text {g} _ {\ text {\ text {cat}}}}^{cat}}^{ - 1}} { - 1}} \ cdot \ cdot \ cd text \ cdext \ cdext \ cdect \ cdext \ text {另外，通过原位红外检测到氮固定过程，这证实了氮固定的可靠性。同样，对光与光催化剂之间的相互作用进行建模以研究表面电荷的分布并验证光催化剂的光吸收。这项工作为轻度条件下的空气固定光催化氮提供了一种简单而廉价的策略。
Photocatalytic nitrogen fixation from air directly under sunlight can contribute significantly to carbon neutralization. It is an ideal pathway to replace the industrial Haber Bosch process in future. A Fe-doped layered WO$_3$ photocatalyst containing oxygen vacancies was developed which can fix nitrogen from air directly under sunlight at atmospheric pressure. The iron doping enhances the transport efficiency of photogenerated electrons. The photocatalytic efficiency is around 4 times higher than that of pure WO$_3$. The optimum nitrogen fixation conditions were examined by orthogonal experiments and its nitrogen fixation performance could reach up to 477 $μ\text{g} \cdot \text{g}_{\text{cat}}^{-1} \cdot \text{h}^{-1}$ under sunlight. In addition, the process of nitrogen fixation was detected by situ infrared, which confirmed the reliability of nitrogen fixation. Also, modelling on the interactions between light and the photocatalyst was carried out to study the distribution of surface charge and validate the light absorption of the photocatalyst. This work provides a simple and cheap strategy for photocatalytic nitrogen fixation from air under mild conditions.
