Role of SrCO3 on Photocatalytic Performance of SrTiO3-SrCO3 Composites

Perovskites such as SrTiO3 are interesting for photocatalytic applications due to their structure-related and electronic properties. These properties influenced by the presence of SrCO3 which is often formed simultaneously during hydrothermal synthesis SrTiO3. In this study, SrTiO3-SrCO3 composites with different contents (5–24 wt%) were synthesized. Their morphological, structural, optical investigated using complementary methods scanning electron microscopy (SEM), X-ray diffraction (XRD), nitrogen sorption, diffuse reflectance spectroscopy (DRS). activity was assessed degradation diclofenac (DCFNa) in aqueous solution CO2 photoreduction under Xe lamp irradiation. Improved efficiency DCFNa observed all studied comparison SrTiO3, highest mineralization obtained sample 21 wt% content. The led an increased concentration active species, •OH radicals. Otherwise, its inhibits CH4 C2H6 production compared pure