We found a match
Your institution may have access to this item. Find your institution then sign in to continue.
- Title
Ultrasonic-Microwave Synergistic Synthesis of RGO-Bi<sub>2</sub>WO<sub>6</sub> Photocatalyst with High Photoactivity for Basic Nitrogen Compounds in Light Oil.
- Authors
Chen, Ying; Ji, Shenglun; Qiao, Tengfei; Miao, Shuang; Zhao, Yu
- Abstract
Graphene-Bi2WO6 composite photocatalyst with excellent photocatalytic properties were synthetized by ultrasonic-microwave synergistic method. The obtained samples were characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM), Fourier infrared (FT-IR) spectrum, specific surface area analyzer (BET) and UV-Vis diffuse reflectance spectra. The photocatalytic activities of as-prepared samples were evaluated by degradation of pyridine in light oil under visible light irradiation. The results show that graphene changed appearance structure of Bi2WO6, which prevented the Bi2WO6 nanosheets reunion arrangement, and increased specific surface area of the catalyst. It can also reduce the recombination probability of photogenerated carrier, so as to improve the photocatalytic activity of the composite catalyst. The optimal amount of graphene is 2%, with the denitrification rate as high as 89.28%, much higher than that of pure Bi2WO6. Bi2WO6 is incorporated onto graphene sheets using an ultrasonic-microwave synergistic method to shorten the time of preparation of catalyst and graphene oxide which could be efficiently reduced under the microwave reaction. The graphene sheets not only function as a good substrate and stabilizer of Bi2WO6 but they could also efficiently improve the electron transport and reduce the charge recombination.
- Subjects
NITROGEN compound synthesis; MICROWAVE chemistry; X-ray diffraction; ULTRASONICS; PHOTOCATALYSTS; PHOTOACTIVATION
- Publication
NANO, 2016, Vol 11, Issue 5, p-1
- ISSN
1793-2920
- Publication type
Article
- DOI
10.1142/S1793292016500521