Nemiwal Meena, Subbaramaiah Verraboina, Zhang Tian C, Kumar Dinesh
Department of Chemistry, Malaviya National Institute of Technology, Jaipur 302017, India.
Department of Chemical Engineering, Malaviya National Institute of Technology, Jaipur 302017, India.
Sci Total Environ. 2021 Mar 25;762:144101. doi: 10.1016/j.scitotenv.2020.144101. Epub 2020 Dec 15.
Metal-organic frameworks (MOFs) have emerged as promising materials and have attracted researchers due to their unique chemical and physical properties-design flexibility, tuneable pore channels, a high surface-to-volume ratio that allow their distinct application in diverse research fields-gas storage, gas separation, catalysis, adsorption, drug delivery, ion exchange, sensing, etc. The rapidly growing CO in the atmosphere is a global concern due to the excessive use of fossil fuels in the current era. CO is the prime cause of global warming and should be ameliorated either through adsorption or conversion into value-added products to protect the environment and mankind. Nowadays, MOFs are exploited as a photocatalyst for applications of CO reduction. Since the use of semiconductors limits the use of visible light for photocatalytic reduction of CO, MOFs are promising options. The current review describes recent development in the application of MOFs as host, composites, and their derivatives in photocatalytic reduction of CO to CO and different organic chemicals (HCOOH, CHOH, CH). Efficient charge separation and visible light absorption by incorporation of active sites for efficient photocatalysis have been discussed. The selection of material for high CO uptake and potential strategies for the rational design and development of high-performance catalysts are outlined. Major challenges and future perspectives have also been discussed at the last of the review.
金属有机框架材料（MOFs）已成为很有前景的材料，并因其独特的化学和物理性质——设计灵活性、可调节的孔道、高比表面积，使其在气体存储、气体分离、催化、吸附、药物递送、离子交换、传感等不同研究领域有着独特的应用，从而吸引了研究人员。由于当今时代化石燃料的过度使用，大气中迅速增长的一氧化碳成为全球关注的问题。一氧化碳是全球变暖的主要原因，应通过吸附或将其转化为增值产品来加以改善，以保护环境和人类。如今，MOFs被用作光催化剂用于一氧化碳还原应用。由于半导体的使用限制了可见光在光催化还原一氧化碳中的应用，MOFs是很有前景的选择。本综述描述了MOFs作为主体、复合材料及其衍生物在光催化将一氧化碳还原为一氧化碳和不同有机化学品（甲酸、甲醇、甲烷）方面应用的最新进展。讨论了通过引入活性位点实现高效电荷分离和可见光吸收以进行高效光催化的情况。概述了用于高一氧化碳吸附量的材料选择以及高性能催化剂合理设计和开发的潜在策略。综述末尾还讨论了主要挑战和未来展望。
