Improvement of microporous silicoaluminophosphate properties by Fe and Ti insertion for photocatalytic hydrogen generation under visible light

Iron- and/or titanium-containing microporous silicoaluminophosphate catalysts have been synthesized, under hydrothermal conditions, using triethylamine structure directing, to obtain the aluminophosphate five phase (AFI). These solids were characterized by X-ray diffraction (XRD), Fourier transformed infrared spectroscopy (FTIR), scanning electron microscopy (SEM), nitrogen adsorption measurements, UV–visible diffuse reflectance (UV–Vis-DRS) and photoelectron (XPS). The physico-chemical analyses revealed that Fe- Ti-containing materials significant photocatalytic properties. Thus, they valorized in hydrogen production from water. reaction has conducted, visible radiations, process followed photo-electrochemical characterization (PEC). Hydrogen is only produced gas takes place conduction band where water reduced while holes are entrapped hole scavengers. results show our exhibit a remarkably high evolution rate remain stable during reuse up at least cycles.