Synthesis and Characterization of Se4+@TiO2/PET Composite Photocatalysts with Enhanced Photocatalytic Activity by Simulated Solar Irradiation and Antibacterial Properties
Yu Ren, Rui Luan, Ziyao Zhao, Lina Tang, Chunxia Wang, Yuehui Li, Meixian Li
TL;DR
Scientists created a new composite material that efficiently breaks down dyes and kills bacteria under sunlight.
Contribution
The novel Se4+@TiO2/PET composite shows enhanced photocatalytic activity and strong antibacterial properties.
Findings
Se4+@TiO2/PET achieved 81% degradation of methyl orange under simulated solar irradiation.
The composite exhibited 99.99% inhibition against S. aureus and 98.47% against E. coli.
The material has a narrower band gap (2.9 eV) and improved electron-hole separation.
Abstract
To fabricate recyclable catalytic materials with high catalytic activity, Se4+@TiO2 photocatalytic materials were synthesized by the sol–gel method. By introducing free radicals on the surface of polyester (PET) fabrics through plasma technology, Se4+@TiO2/PET composite photocatalytic materials with high photocatalytic activity were prepared. The surface morphology, crystal structure, chemical composition, and photocatalytic performance were characterized by scanning electron microscopy (SEM), X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS), ultraviolet–visible absorption spectroscopy (UV–Vis), and photoluminescence spectroscopy (PL), respectively. The photocatalytic degradation performance was determined by assessing the degradation of azo dye methyl orange under simulated solar irradiation. The results demonstrated that Se4+@TiO2/PET exhibited a superior degradation…
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Taxonomy
TopicsAdvanced Photocatalysis Techniques · TiO2 Photocatalysis and Solar Cells · Pigment Synthesis and Properties