Synthesis and photocatalytic properties of Palladium-loaded three dimensional flower-like anatase TiO2 with dominant {0 0 1} facets
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- 作者：Xue Bai ; baixue@hhu.edu.cn" class="auth_mail" title="E-mail the corresponding author ; Lingling Lv ; Xiaoyuan Zhang ; Zulin Hua
- 关键词：Pd/TiO2 nanocomposites ; {0 ; 0 ; 1} Facets ; Photocatalysis ; Photodeposition ; Extended light absorption
- 刊名：Journal of Colloid and Interface Science
- 出版年：2016
- 出版时间：1 April 2016
- 年：2016
- 卷：467
- 期：Complete
- 页码：1-9
- 全文大小：2921 K
文摘
Palladium-loaded (Pd-loaded) anatase TiO2 with dominant {0 0 1} facets used as photocatalysts was prepared by a two-step process. Three dimensional flower-like structures of anatase TiO2 with exposed {0 0 1} facets were synthesized by solvothermal method, and then Pd nanoparticles were photodeposited onto the {1 0 1} 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 μm. 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.