Effect of nominal doping of Ag and Ni on the crystalline structure and photo-catalytic properties of mesoporous titania
IR@NPL: CSIR-National Physical Laboratory, New Delhi
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| Title |
Effect of nominal doping of Ag and Ni on the crystalline structure and photo-catalytic properties of mesoporous titania
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| Creator |
Bahadur, Nupur
Jain, Kiran Srivastava, A. K. -, Govind Gakhar, Ruchi Haranath, Divi Dulat, M. S. |
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| Subject |
Materials Science
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| Description |
Doping at nanoscale and modification of nanocrystal either by binding or interaction is possible if the
morphology of the nanocrystal and the properties of the dopant present in the chemical solution are
exactly known [30,31]. In other words, the binding energy of the impurity/dopant with respect to the
surface of the host lattice, the bonding character and the coordination environment have role to affect
the microstructure, grain boundary distribution, surface, optical and photo-catalytic properties of doped
materials. In view of this,weadopted a modified sol–gel technique, where dopants (Ag and Ni) are present
in the chemical solution for the effective doping in the host matrix. However, the literature reports
generally involves higher doping concentrations of these ions, but the novelty of the present work lies
in the case specific study of a single and nominal doping concentrations of 0.02 wt.% Ag and Ni in TiO2,
which has led to unusual changes with respect to its microstructure, grain boundary distribution, pore size
distribution and surface properties, optical and photo-catalytic activity towards complete degradation
of organic pollutant dye within few minutes of visible and UV light irradiation.
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| Publisher |
Elsevier
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| Date |
2010-07-11
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| Type |
Article
PeerReviewed |
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| Format |
application/pdf
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| Identifier |
http://npl.csircentral.net/102/1/77.pdf
Bahadur, Nupur and Jain, Kiran and Srivastava, A. K. and -, Govind and Gakhar, Ruchi and Haranath, Divi and Dulat, M. S. (2010) Effect of nominal doping of Ag and Ni on the crystalline structure and photo-catalytic properties of mesoporous titania. Materials Chemistry and Physics, 124 (1). pp. 600-608. ISSN 0254-0584 |
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| Relation |
http://dx.doi.org/10.1016/j.matchemphys.2010.07.020
http://npl.csircentral.net/102/ |
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