期刊
JOURNAL OF COLLOID AND INTERFACE SCIENCE
卷 467, 期 -, 页码 1-9出版社
ACADEMIC PRESS INC ELSEVIER SCIENCE
DOI: 10.1016/j.jcis.2015.12.053
关键词
Pd/TiO2 nanocomposites; (001) Facets; Photocatalysis; Photodeposition; Extended light absorption
资金
- National Natural Science Foundation of China [51308183, 51379060]
- Natural Science Foundation of Jiangsu Province of China [BK20130828]
- Major Science
- Fundamental Research Funds for the Central Universities [2013B32214, 2014B07414]
- Priority Academic Program Development of Jiangsu Higher Education Institutions
Palladium-loaded (Pd-loaded) anatase TiO2 with dominant {001) facets used as photocatalysts was prepared by a two-step process. Three dimensional flower-like structures of anatase TiO2 with exposed {001) facets were synthesized by solvothermal method, and then Pd nanoparticles were photodeposited onto the {101) surface of TiO2 by UV reduction. The resulting Pd/TiO2 was characterized by X-ray diffraction, scanning electron microscopy, transmission electron microscopy, X-ray photoelectron spectroscopy, and UV vis diffuse reflectance spectra. Characterization results indicated that the flower-like structures of anatase TiO2 were assembled by two dimensional nanosheets with a thickness of approximately 10 nm and a length of approximately 1.0 mu m. The Pd/TiO2 nanocomposites with improved visible-light harvesting capability, high charge-hole mobility, and low electron-hole recombination exhibited improved photocatalytic performance in degrading bisphenol A. This study provided new insights into the fabrication and practical application of high-performance photocatalysts in degrading organic pollutants. (C) 2016 Elsevier Inc. All rights reserved.
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