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

IF 1.3 4区化学 Q4 CHEMISTRY, PHYSICAL

Kinetics and Catalysis Pub Date : 2024-11-04 DOI:10.1134/S0023158424601943

S. A. Kurnosenko, O. I. Silyukov, I. A. Rodionov, I. A. Minich, A. I. Ustinova, I. A. Zvereva

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Abstract

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 HCa₂Nb₃O₁₀ 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 TiO₂ P25 Degussa up to 6.3 and 5.3 times, respectively, providing a hydrogen production rate up to 24.2 mmol h⁻¹g⁻¹ and apparent quantum efficiency up to 10% in the mid-near ultraviolet range.

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层状透辉石类铌酸盐 HCa2Nb3O10 的重组装纳米片作为光催化剂，用于从植物生物质加工产品的水溶液中制氢

在矿物储量枯竭的条件下，植物生物质被认为是一种可再生自然资源，可以通过光催化处理来生产能源密集型和环境友好型氢燃料。为此，本文重点研究了层状透辉石结构铌酸盐 HCa2Nb3O10 在典型植物生物质成分葡萄糖和木糖水溶液制氢反应中的光催化活性，方法是将其剥离成纳米片，然后用铂催化剂重新组装和修饰。结果表明，重新组合后的化合物的活性比初始铌酸盐和参考光催化剂 TiO2 P25 Degussa 的活性分别高出 6.3 倍和 5.3 倍，在中近紫外范围内的产氢率高达 24.2 mmol h-1g-1，表观量子效率高达 10%。

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来源期刊

Kinetics and Catalysis 化学-物理化学

CiteScore

2.10

自引率

27.30%

发文量

审稿时长

6-12 weeks

期刊介绍： Kinetics and Catalysis Russian is a periodical that publishes theoretical and experimental works on homogeneous and heterogeneous kinetics and catalysis. Other topics include the mechanism and kinetics of noncatalytic processes in gaseous, liquid, and solid phases, quantum chemical calculations in kinetics and catalysis, methods of studying catalytic processes and catalysts, the chemistry of catalysts and adsorbent surfaces, the structure and physicochemical properties of catalysts, preparation and poisoning of catalysts, macrokinetics, and computer simulations in catalysis. The journal also publishes review articles on contemporary problems in kinetics and catalysis. The journal welcomes manuscripts from all countries in the English or Russian language.