International Tomography Center SB RAS, Institutskaya Street 3a, Novosibirsk, 630090, Russia.
Institute of Inorganic and Applied Chemistry, University of Hamburg, Martin-Luther-King-Platz 6, 20146 Hamburg, Germany.
ACS Appl Mater Interfaces. 2023 Feb 1;15(4):5191-5197. doi: 10.1021/acsami.2c19183. Epub 2023 Jan 18.
Nitrogen oxides are adverse poisonous gases present in the atmosphere and having detrimental effects on the human health and environment. In this work, we propose a new type of mesoporous materials capable of capturing nitrogen monoxide (NO) from air. The designed material combines the robust Santa Barbara Amorphous-15 silica scaffold and ultrastable Blatter-type radicals acting as NO traps. Using in situ electron paramagnetic resonance spectroscopy, we demonstrate that NO capture from air is selective and reversible at practical conditions, thus making Blatter radical-decorated silica highly promising for environmental applications.
氮氧化物是大气中存在的有害有毒气体，对人类健康和环境有不利影响。在这项工作中，我们提出了一种新型的介孔材料，能够从空气中捕获一氧化氮（NO）。设计的材料结合了坚固的 Santa Barbara Amorphous-15 硅石支架和超稳定的 Blatter 型自由基，作为 NO 捕获剂。通过原位电子顺磁共振波谱法，我们证明了在实际条件下，从空气中选择性和可逆地捕获 NO，因此，用 Blatter 自由基修饰的硅石在环境应用中很有前景。
