TITLE

Structure, luminescence properties and photocatalytic activity of europium doped-TiO2 nanoparticles

AUTHOR(S)
Zili Xu; Qiujing Yang; Chao Xie; Weijun Yan; Yaoguo Du; Zhongmin Gao; Jiahua Zhang
PUB. DATE
March 2005
SOURCE
Journal of Materials Science;Mar2005, Vol. 40 Issue 6, p1539
SOURCE TYPE
Academic Journal
DOC. TYPE
Letter
ABSTRACT
This article reports that as a promising photocatalyst, semiconductor TiO2 is the focus of numerous studies owing to its attractive characteristics in the treatment of environmental contaminants over the past 20 years. Unfortunately, its bad photocatalytic activity due to the fast recombination of photogenerated electron-hole pairs limits the commercialization of this technology. In recent years, in order to enhance the photocatalytic activity, modification of TiO2 by rare-earth-element has become of an increasing interest because of their special photoluminescence and catalytic properties. In this paper, europium (Eu) is selected as a representative of rare earth elements to study the effects of Eu ion doping on the structure, luminescence properties, and photocatalytic activity of TiO2.
ACCESSION #
16525966

 

Related Articles

  • Magnetism of III—V Crystals Doped with Rare-Earth Elements. Bagraev, N. T.; Romanov, V. V. // Semiconductors;Oct2005, Vol. 39 Issue 10, p1131 

    The procedure of measuring static magnetic susceptibility is used for the study of local ordering in III–V crystals containing rare-earth dopants. The dependences of the static magnetic susceptibility on the temperature and magnetic field show a slight paramagnetism at high temperatures...

  • Determination of trace europium by use of the new fluorescence system europium–sparfloxacin–1,10-phenanthroline–sodium dodecyl sulfate. Wei Jiang; Yudao Ma; Wenyuan Zhao; Yu Feng; Naixing Wang; Zhikun Si // Analytical & Bioanalytical Chemistry;Oct2003, Vol. 377 Issue 4, p681 

    A new lanthanide-sensitized luminescence system: europium–sparfloxacin–1,10-phenanthroline–sodium dodecyl sulfate has been discovered. The spectrofluorimetric properties of the system were studied. The effect of experimental conditions on the fluorescence intensity was...

  • europium.  // Taber's Cyclopedic Medical Dictionary;2005, p748 

    A definition of the medical term "europium" is presented, which refers to a rare element of the lanthanide series with atomic number 63 and an atomic weight of 151.96.

  • Conductivity of SeAs chalcogenide glassy semiconductor layers containing the EuF rare-earth impurity in high electric fields. Isayev, A.; Mekhtieva, S.; Garibova, S.; Zeynalov, V. // Semiconductors;Sep2012, Vol. 46 Issue 9, p1114 

    By investigating the I- V characteristics of an Al-SeAs:EuF-Te structure, it is established that, upon the application of a positive potential to Te, the current flows in it by the mechanism of space-charge-limited currents (SCLCs) of unipolar-injection, and the N-type I- V characteristic is...

  • Influence of the electric characteristics of II–VI semiconductor material on the electroluminescence of lanthanide complex. Zhang, F.-J.; Xu, Z.; Lv, Y.-G.; Zhang, J.-C.; Zhao, S. L.; Huang, J.-Z.; Wang, Y.; Yuan, G.-C.; Zhao, D.-W.; Xu, X.-R. // European Physical Journal B -- Condensed Matter;Jul2006, Vol. 52 Issue 2, p245 

    The organic-inorganic combined structural device (ITO/PVK:Eu/ZnS/Al) is fabricated based on layered optimization scheme. II–VI semiconductor material ZnS is acted as an electron function (transporting and acceleration) layer. The hot electrons which have been accelerated in the ZnS layer...

  • Electron-Stimulated Desorption of Rare-Earth Metal Atoms. Ageev, V. N.; Kuznetsov, Yu. A.; Potekhina, N. D. // Physics of the Solid State;May2004, Vol. 46 Issue 5, p975 

    The yield of europium and samarium atoms in electron-stimulated desorption from layers of rare-earth metals (REMs) adsorbed on the surface of oxidized tungsten has been measured as a function of the incident electron energy, surface coverage by REMs, degree of tungsten oxidation, and substrate...

  • Concentration dependent microstructure and transport properties of the magnetic semiconductor Gd-Si. Helgren, E.; Queen, D.; Hellman, F.; Zeng, L.; Islam, R.; Smith, David J. // Journal of Applied Physics;5/1/2007, Vol. 101 Issue 9, p093712 

    The transport properties and microstructure of amorphous GdxSi1-x alloys are presented. The conductivity increases from x=0 through the metal-insulator transition (x=14 at. %), up to a dopant concentration of 25 at. %. A sharp cusp in the magnitude of the conductivity is then observed and the...

  • Magnetic and optical properties of rare earth doped Sn0.95RE0.05O2-δ (RE=Gd, Dy, Er). Mohan Kant, K.; Chandrasekaran, K.; Ogale, S. B.; Venkatesan, T.; Sethupathi, K.; Rao, M. S. R. // Journal of Applied Physics;5/15/2005, Vol. 97 Issue 10, p10Q905 

    The magnetic and optical properties of rare earth (Gd, Dy, and Er) ion doped SnO2 bulk and optical properties of thin films are investigated. The bulk samples were found to show an upturn in ac magnetic susceptibility at low temperatures TU and exhibited a paramagnetic moment at room...

  • Synthesis and structural characterization of Eu(III)-doped Zn7Sb2O12. Silva, A. C. S.; Souza, G. G.; Nobre, M. A. L.; Pires, A. M. // Journal of Materials Science;Aug2010, Vol. 45 Issue 15, p4216 

    In addition to the lanthanide series elements, Europium is one of the chemical elements of greatest interest for the development of species with oxidation state +3 (III), which leads to interesting electronic transitions. In a general sense, their emission spectrum lines are narrow and sensitive...

Share

Read the Article

Courtesy of THE LIBRARY OF VIRGINIA

Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics