Photocatalytic Hydrogen Production of Perovskite Based Nanocomposites by Green Laser Irradiation Techniques

The goal of this research was to synthesize a nanocomposite photocatalyst-based on a binary direct Z-scheme STCS perovskite using a simple and ecologically friendly laser irradiation technique to augment the photo-catalytic hydrogen production efficiency. XRD, SEM, TEM, XPS, Raman, UV-vis, and PL spectroscopy were used to characterize the prepared materials. These findings revealed that the presence of interfacial contact and a heterogeneous structure inside the STCS perovskite nanocomposites. Even without a noble metal co-catalyst, the STCS perovskite nanocomposite demonstrated improved efficiency in photocatalytic hydrogen production when exposed to UV light. The improvement might be ascribed to the Z-scheme mechanism’s preferred charge-carrier transfer route. The STCS3 perovskite nanocomposite outperformed the individual components ST and CS, respectively. STCS3 perovskite nanocomposite produced 3214.29 μmol g⁻¹ h⁻¹ of hydrogen, surpassing the ST (535.7 μmol g⁻¹ h⁻¹) and CS (1250.0 μmol g⁻¹ h⁻¹) yields by about 6.0 and 2.6 times, respectively. Furthermore, because of the photocatalyst’s high recyclability, it is more suitable for usage in real-world applications.