LaFeO3 Modified with Ni for Hydrogen Evolution via Photocatalytic Glucose Reforming in Liquid Phase

In this work, the optimization of Ni amount on LaFeO3 photocatalyst was studied in photocatalytic molecular hydrogen production from glucose aqueous solution under UV light irradiation. synthesized via combustion synthesis and different were dispersed surface through deposition method using NaBH4 as reducing agent. The prepared samples characterized with techniques: Raman spectroscopy, UltraViolet-Visible Diffuse Reflectance Spettroscopy (UV–Vis-DRS), X-ray Diffraction (XRD), Photoelectron Spectroscopy (XPS), Fluorescence (XRF), Transmission Electron microscopy (TEM), Scanning (SEM) analyses. For all investigated photocatalysts, presence perovskite resulted a better activity compared to pure LaFeO3. particular, it is possible identify an optimal for which obtain best production. Specifically, results showed that equal nominal 0.12 wt% (0.12Ni/LaFeO3), H2 2574 ?mol/L after 4 h influence dosage initial concentration also evaluated. operating parameters indicated highest achieved 0.12Ni/LaFeO3 sample 1.5 g/L catalyst 1000 ppm concentration. To determine reactive species play most significant role production, tests radical scavengers performed. •OH plays conversion H2. Moreover, carried out D2O instead H2O evidenced water molecules solution.