Journal
MATERIALS RESEARCH BULLETIN
Volume 80, Issue -, Pages 337-343Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.materresbull.2016.04.018
Keywords
Nanostructures; Semiconductors; X-ray diffraction; Catalytic properties
Categories
Funding
- National Natural Science Foundation of China [21471160, 51402362]
- Huangdao District Key Scientific and Technological Program [2014-1-50]
- China Postdoctoral Science Foundation [2013M541963]
- Shandong Natural Science Foundation [ZR2014EMQ012]
- Fundamental Research Funds for the Central Universities
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TiO2/TiOF2 heterostructured nanocomposites has been synthesized through a solvothermal method and characterized by X-ray diffraction, scanning electronic microscopy, transmission electronic microscopy, nitrogen adsorption -desorption isotherms, UV-vis and photo -luminescent spectroscopy. It was found that, compared with single TiOF2 or TiO2, the as -prepared TiO2/TiOF2 nanocomposites exhibited superior photoactivity towards the degradation of organic pollutants, i.e. rhodamine B and solar hydrogen evolution. The results are in accordance with the prohibition of photogenerated electrons and holes recombination in these two samples under light illumination. The photocatalytic activity can be further boosted by introducing Pd nanoparticles onto the surfaces of TiO2/TiOF2 through a simple deposition method without using any stabilizers, which is probably attributed to the enhanced visible -light absorption as well as the facilitated charge -carrier separation after the introduction of Pd nanoparticles. The synergistic effect between TiOF2 and TiO2 was discussed and was responsible for the enhancement of their activity in comparison with single counterpart. (C) 2016 Elsevier Ltd. All rights reserved.
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