Czasopismo
Tytuł artykułu
Warianty tytułu
Języki publikacji
Abstrakty
Anatase TiO2 was prepared by sol-gel method through the hydrolysis of TiCl4. Ni2+ was doped into the TiO2 matrix in the concentration range of 0.02 to 0.1 at.% and characterized by various analytical techniques. Powder X-ray diffraction revealed only anatase phase for all the samples, while diffuse reflectance spectral studies indicated a red shift in the band gap absorption to the visible region. The photocatalytic activities of these photocatalysts were probed for the degradation of methyl orange under natural solar light. The photocatalyst with optimum doping of 0.08 at.% Ni2+, showed enhanced activity, which is attributed to: (i) effective separation of charge carriers and (ii) large red shift in the band gap to visible region. The influence of crystallite size and dopant concentration on the charge carrier trapping - recombination dynamics is investigated. [...]
Czasopismo
Rocznik
Tom
Numer
Strony
142-148
Opis fizyczny
Daty
wydano
2010-02-01
online
2010-02-16
Twórcy
autor
- Department of Post Graduate Studies in Chemistry, Central College City Campus, Bangalore University, Bangalore, 560001, India, gomatidevi_naik@yahoo.co.in
autor
- Department of Post Graduate Studies in Chemistry, Central College City Campus, Bangalore University, Bangalore, 560001, India
autor
- Department of Post Graduate Studies in Chemistry, Central College City Campus, Bangalore University, Bangalore, 560001, India
autor
- Department of Post Graduate Studies in Chemistry, Central College City Campus, Bangalore University, Bangalore, 560001, India
Bibliografia
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Typ dokumentu
Bibliografia
Identyfikatory
Identyfikator YADDA
bwmeta1.element.-psjd-doi-10_2478_s11532-009-0115-y