Электронный каталог

Статья

Minh, P.P.D.
Promoted Hydrogen Peroxide Production from Pure Water on g-C&sub(3)H&sub(4) with Nitrogen Defects Constructed Through Solvent-Precursor Interactions: Exploring a Complex Story in Piezo-Photocatalysis / P.P.D.Minh, Tiep Van Nguyen, [a.o.] // Small Methods [Electronic resource]. – 2025. – Vol. 9, No. 1. – P. 2400797. – URL: https://doi.org/10.1002/smtd.202400797. – Bibliogr.: 51.

Hydrogen peroxide (H&sub(2)O&sub(2)) production via oxygen (O2) reduction reaction (ORR) in pure water (H&sub(2)O&sub(2)) through graphitic carbon nitrides (g-C&sub(3)N&sub(4))-based piezo-photocatalysts is an exciting approach in many current studies. However, the low Lewis-acid properties of g-C&sub(3)N&sub(4) limited the catalytic performance because of the low O&sub(2) adsorption efficacy. To overcome this challenge, the interaction of g-C&sub(3)N&sub(4) precursors with various solvents are utilized to synthesize g-C&sub(3)N&sub(4), possessing multiple nitrogen-vacant species via thermal shocking polymerization. These results suggest that the lack of nitrogen in g-C&sub(3)N&sub(4) and the incident introduction of oxygen-functional groups enhance the Lewis acid-base interactions and polarize the g-C&sub(3)N&sub(4) lattices, leading to the enormous enhancement. Furthermore, the catalytic mechanisms are thoroughly studied, with the formation of H&sub(2)O&sub(2) proceeding via radical and water oxidation pathways, in which the roles of light and ultrasound are carefully investigated. Thus, these findings not only reinforce the potential view of metal-free photocatalysts, accelerating the understanding of g-C&sub(3)N&sub(4) working principles to generate H&sub(2)O&sub(2) based on the oxygen reduction and water oxidation reactions, but also propose a facile one-step way for fabricating highly efficient and scalable photocatalysts to produce H&sub(2)O&sub(2) without using sacrificial agents, pushing the practical application of in situ solar H&sub(2)O&sub(2) toward real-world scenarios.



ОИЯИ = ОИЯИ (JINR)2025
Спец.(статьи,препринты) = С 44 - Аналитическая химия
Бюллетени = 10/025