Реферат: Photocatalysis has great potential in efficient utilization of light energy because photocatalytic processes ensure environmental protection, energy conversion, and sustainable development. An efficient approach in photocatalyst design is combining several semiconductors to enhance separation of photogenerated charges due to their improved interphase transfer by heterojunction. Heterostructured nanocomposites can provide boosted photocatalytic activity due to the optimum positions of energy bands to generate charge carriers under radiation with the potentials high enough for target reactions. This talk presents the results of international joint project between RSF (24-43-00182) and NSFC (22361132537) on the rational design of composite materials based on bismuth compounds (Bi2O2Xn, Bi2WO6, BiVO4, Bi2O3) and other semiconductors for efficient photocatalytic CO2 reduction and pollutant degradation. Bismuth oxycompounds (Bi2O2Xn) exhibit significant potential for solar-driven photocatalytic CO2 conversion due to their unique electronic properties, and we have proposed novel metal-doped heterostructures based on Bi2O2Xn and NiCo2O4 to enhance photocatalytic CO2 reduction performance. Otherwise, Fe-decorated heterostructures composed of Bi2WO6 and N-doped titania are shown to decompose rapidly volatile organic pollutants both under UV and visible light due to formation of strong oxidants (H2O2, OH-radicals). In all cases, correlation between physicochemical characteristics of the composites and their activity in photocatalytic reactions is comprehensively discussed.

Библиографическая ссылка: Selishchev D. , Lyulyukin M. , Bukhtiyarov A. , Selishcheva S. , Li J. , Yang Z. , Solovyeva M. , Fazliev T. , Li Y. , Zhang G.
Novel Bi-Based Nanocomposites for Efficient Photocatalytic CO2 Reduction and Pollutant Degradation
20th Asian Chemical Congress 23-27 Jun 2025