Porous photocatalysts have attracted significant attention for their large specific surface area, numerous surface catalytic active sites, and high photocatalytic activity. In this study, porous SrTiO3/TiO2 composites were successfully fabricated through a hydrothermal
approach utilizing porous TiO2 as a substrate. The as-synthesized SrTiO3/TiO2 composites were then characterized by X-ray diffraction, scanning electron microscopy (SEM), transmission electron microscopy, Brunauer-Emmett-Teller (BET), and ultraviolet-visible
spectroscopy (UV-Vis) analysis. The results of SEM and BET indicate that such composites have a porous structure and large surface area. Compared to unadulterated TiO2, SrTiO3 /TiO2 composites exhibit higher photocatalytic performance for the photodegradation
of rhodamine B under UV-Vis irradiation. Additionally, it was found that when the content of SrTiO3 reaches 20%, it achieves the maximum photodegradation efficiency of 98.6% under UV-Vis irradiation over 60 min. These results demonstrate that SrTiO3/TiO2 composites
are a promising material in terms of environmental cleanliness.
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Document Type: Research Article
School of Chemistry and Chemical Engineering, Anyang Normal University, 455002, Henan Province, People's Republic of China
International Joint Laboratory of Henan Photoelectric Functional Materials, Anyang, Henan Province, 455002, People's Republic of China
September 1, 2019
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