Journal
CHEMICAL ENGINEERING JOURNAL
Volume 168, Issue 1, Pages 455-460Publisher
ELSEVIER SCIENCE SA
DOI: 10.1016/j.cej.2011.01.035
Keywords
CdS/La2Ti2O7; Nanocomposite; Photocatalytic properties
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Funding
- Beijing Municipality, PHR (IHLB) [PHR201007101]
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A novel CdS/La2Ti2O7 nanocomposite photocatalyst working under visible light was prepared by a simple sonochemical coupled method. The catalyst was characterized by powder X-ray diffraction, scanning electron microscopy (SEM), transmission electron microscopy (TEM), and UV-vis diffuse reflectance spectroscopy. The nanocomposite exhibited a strong photocatalytic activity for decomposition of methyl orange (MO) under UV and visible light irradiation. Moreover, the nanocomposite with La/Cd = 1:3 shows the highest photocatalytic activity. The enhanced photocatalytic performance might be attributed to the layered structure of CdS/La2Ti2O7 nanocomposites and the matched band potentials of the two semiconductors. (C) 2011 Elsevier B.V. All rights reserved.
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