Raspberry—like monodispersity ZnO microspheres for photodegradation of rhodamine B
- Institute of Nanochemistry and Nanobiology, Shanghai University, Shanghai, 200444 (China)
- School of Environmental and Chemical Engineering, Shanghai University, Shanghai, 200444 (China)
- State Key Laboratory of Chemical Engineering, East China University of Science & Technology, Shanghai, 200237 (China)
Highlights: • Rasberry-like ZnO microspheres were successfully prepared through a F108-assisted one-pot hydrothermal route. • The resulting ZnO microspheres are composed of many small nanoparticles, generating a unique rough surface. • The surface rough and the diameter of the microspheres can be easily tuned only by changing the composition of the precursor. • The Au decorated-ZnO composite demonstrates better photocatalytic activities for degradation of RhB than the pristine ZnO micropheres. - Abstract: In the article, we propose a simple and effective one-pot hydrothermal approach for synthesis of raspberry-like ZnO microspheres, where triblockpoly (ethylene oxide)-poly (propylene oxide)-poly (ethylene oxide), triethanolamine, ethylene glycol acts as the structure-directing agent (SDA), co-template, and solvent, respectively. They are together responsible for the growth of ZnO products with uniform morphology, high crystallinity, and good monodispersity. The resulting ZnO microspheres possess rough surface, which are composed of many small nanoparticles. Moreover, the surface roughness and the diameter of the microspheres can be easily tuned only by changing the composition of the precursor. Meanwhile, the photodegradation behavior of the products is also tested by selecting the rhodamine B (RhB) as the model pollutant. The photocatalytic results indicate that the raspberry-like ZnO products exhibit excellent photocatalytic activity. In particular, the Au decorated-ZnO composite demonstrates an enhanced photocatalytic activity towards degradation of RhB under UV irradiation compared with the pristine ZnO microspheres.
- OSTI ID:
- 22805431
- Journal Information:
- Materials Research Bulletin, Vol. 99; Other Information: Copyright (c) 2017 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved.; Country of input: International Atomic Energy Agency (IAEA); ISSN 0025-5408
- Country of Publication:
- United States
- Language:
- English
Similar Records
Raspberry colloid-templated approach for the synthesis of palladium-based oxidation catalysts with enhanced hydrothermal stability and low-temperature activity
Hydrothermal synthesis of coral-like Au/ZnO catalyst and photocatalytic degradation of Orange II dye