Journal
JOURNAL OF NANOSCIENCE AND NANOTECHNOLOGY
Volume 19, Issue 9, Pages 5707-5712Publisher
AMER SCIENTIFIC PUBLISHERS
DOI: 10.1166/jnn.2019.16550
Keywords
SrTiO3; TiO2; Photodegradation; Porous Structure
Categories
Funding
- National Natural Science Foundation of China [21273010]
- Program for Science and Technology Innovation Talents at the University of Henan Province [13HASTIT014]
- Outstanding Youth Innovation Talent of Henan Province [14410051000]
- Key Scientific Research Projects of Henan Universities [19A150014]
- Innovation Fund Project for College Students of Anyang Normal University [ASCX/2018-Z034]
- China Scholarship Council (CSC) [201808260016]
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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, BrunauerEmmett-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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