Reassembled Nanosheets of Layered Perovskite-Like Niobate HCa2Nb3O10 as Photocatalysts for Hydrogen Production from Aqueous Solutions of Plant Biomass Processing Products

• Published in: Kinetics and catalysis 2024-10, Vol.65 (5), p.586-596
• Main Authors: Kurnosenko, S. A., Silyukov, O. I., Rodionov, I. A., Minich, I. A., Ustinova, A. I., Zvereva, I. A.
• Format: Article
• Language: English
• Subjects: Aqueous solutions; Biomass energy production; Catalysis; Catalytic activity; Chemistry; Chemistry and Materials Science; Environmental Protection; Hydrogen fuels; Hydrogen production; Nanosheets; Natural resources; Niobates; Perovskites; Photocatalysis; Photocatalysis for Energy; Photocatalysts; Physical Chemistry; Plant layout; Quantum efficiency; Sustainable Development; Titanium dioxide
• ISSN: 0023-1584; 1608-3210
• DOI: 10.1134/S0023158424601943

In conditions of depletion of mineral reserves, plant biomass is considered a renewable natural resource that can be photocatalytically processed to produce energy-intensive and environmentally friendly hydrogen fuel. In this regard, the present article focuses on the improvement of photocatalytic activity of the layered perovskite-structured niobate HCa 2 Nb 3 O 10 in the reactions of hydrogen production from aqueous solutions of typical plant biomass components, glucose and xylose, via its exfoliation into nanosheets followed by their reassembly and modification with a Pt cocatalyst. The reassembled compound obtained was shown to outperform in the activity the initial niobate and reference photocatalyst TiO 2 P25 Degussa up to 6.3 and 5.3 times, respectively, providing a hydrogen production rate up to 24.2 mmol h −1 g −1 and apparent quantum efficiency up to 10% in the mid-near ultraviolet range.