Singh Chandani, Yadav Rajesh K, Kim Tae Wu, Baeg Jin-Ook, Singh Atul P
Department of Chemistry and Environmental Science, Madan Mohan Malaviya University of Technology, Gorakhpur, India.
Department of Chemistry, Mokpo National University, Muan-gun, Jeollanam-do, Korea.
Photochem Photobiol. 2022 Sep;98(5):998-1007. doi: 10.1111/php.13607. Epub 2022 Feb 24.
To minimize the ever-increasing global warming and environmental problems, the conversion of atmospheric CO into value-added solar chemicals/fuels is one of the most challenging tasks. As a means to accomplish this, herein we have synthesized first time novel in situ selenium-doped polyimide frameworks (Se-PIFs) photocatalyst via thermal co-polymerization approach between melem (M) and perylene 3, 4, 9, 10-tetracarboxylic dianhydride (PTDA) along with selenium (Se) as a dopant. The Se-PIFs photocatalyst shows outstanding photocatalytic stability and activity for high solar fuel production (HCOOH ~ formic acid) from CO . The solar light active Se-PIFs photocatalyst was demonstrating the ~ 10-fold higher photo-conversion of CO to formic acid with yields of 250. 6 μmol. The current work is providing a facile and scalable avenue as well as sheds light on creating a new route for in situ judicious design highly efficient Se-PIFs photocatalyst. The outcome is a benchmark instance for the use of selenium-doped polyimide frameworks as a highly practical and efficient solar light active photocatalyst for carrying out the selective production of formic acid from environmental CO .
为了尽量减少日益严重的全球变暖和环境问题，将大气中的一氧化碳转化为增值太阳能化学品/燃料是最具挑战性的任务之一。作为实现这一目标的一种手段，在此我们首次通过蜜勒胺（M）与苝-3,4,9,10-四羧酸二酐（PTDA）以及作为掺杂剂的硒（Se）之间的热共聚方法合成了新型原位硒掺杂聚酰亚胺骨架（Se-PIFs）光催化剂。Se-PIFs光催化剂在由一氧化碳生产高太阳能燃料（HCOOH~甲酸）方面表现出出色的光催化稳定性和活性。太阳光活性Se-PIFs光催化剂将一氧化碳光转化为甲酸的效率提高了约10倍，产率为250.6μmol。目前的工作提供了一条简便且可扩展的途径，也为原位合理设计高效Se-PIFs光催化剂开辟了一条新路线。这一成果是将硒掺杂聚酰亚胺骨架用作从环境一氧化碳中选择性生产甲酸的高度实用且高效的太阳光活性光催化剂的一个基准实例。
