Synthesis and characterization of Ag/Bi2WO6/GO composite for the fast degradation of tylosin under visible light

Ag/Bi 2 WO 6 /graphene oxide composite with excellent photocatalytic properties was successfully prepared by hydrothermal-photoreduction synergistic method and is applied in antibiotics degradation. The structure and properties of as-prepared photocatalysts were characterized by Fourier infrared spe...

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Bibliographic Details
Published in:Environmental science and pollution research international 2018-04, Vol.25 (12), p.11754-11766
Main Authors: Dong, Hao, Yin, Yongyuan, Guo, Xuetao
Format: Article
Language:English
Subjects:
Antibiotics
Aquatic Pollution
Atmospheric Protection/Air Quality Control/Air Pollution
Atomic force microscopes
Atomic force microscopy
Atomic structure
Bismuth compounds
Earth and Environmental Science
Ecotoxicology
Electron microscopy
Environment
Environmental Chemistry
Environmental Health
Environmental science
Fourier transforms
Graphene
Infrared analysis
Irradiation
Microscopes
Nanoparticles
Photocatalysis
Photocatalysts
Photochemistry
Photodegradation
Photoelectron spectroscopy
Photoreduction
Research Article
Scanning electron microscopy
Silver
Tungstates
Tylosin
Waste Water Technology
Water Management
Water Pollution Control
X ray photoelectron spectroscopy
X-ray diffraction
X-rays
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Summary:Ag/Bi 2 WO 6 /graphene oxide composite with excellent photocatalytic properties was successfully prepared by hydrothermal-photoreduction synergistic method and is applied in antibiotics degradation. The structure and properties of as-prepared photocatalysts were characterized by Fourier infrared spectrum (FTIR), X-ray photoelectron spectroscopy (XPS), specific surface area analyzer (BET), scanning electron microscopy (SEM), X-ray diffraction (XRD), and atomic force microscope (AFM). The results indicated that Ag and Bi 2 WO 6 were uniformly loaded on the surface of graphene oxide. In addition, graphene oxide with conjugated carbon network structures has been applied as a photocatalyst supporter for the high electronic conductivity and the large reactive sites. Compared with the pure graphene oxide, the as-prepared Ag/Bi 2 WO 6 /graphene oxide catalyst exhibited excellent degradation efficiency and stability for degrading tylosin under Xe lamp irradiation. Under simulated sunlight irradiation, the photodegradation efficiency of tylosin by Ag/Bi 2 WO 6 /graphene oxide achieved at 98% within 2 h, compared to 50% by pure graphene oxide. The excellent photodegradation ability is caused by the synergetic effect of Ag, Bi 2 WO 6 , and graphene oxide nanoparticles.
ISSN:0944-1344
1614-7499
DOI:10.1007/s11356-018-1296-8