NDLI: Preparation of nanocrystalline Fe-doped TiO$_{2}$ powders as a visible-light-responsive photocatalyst

Content Provider	Springer Nature Link
Author	Ma, Jing Wei, Yi Liu, Wen Xiu Cao, Wen Bin
Copyright Year	2009
Abstract	Nanocrystalline Fe-doped TiO$_{2}$ powders were prepared using TiOSO$_{4}$, urea, and Fe(NO$_{3}$)$_{3}$ · 9H$_{2}$O as precursors through a hydrothermal method. The as-synthesized yellowish-colored powders are composed of anatase TiO$_{2}$, identified by X-ray diffraction (XRD). The grain size ranged from 9.7 to 12.1 nm, calculated by Scherrer’s method. The specific surface area ranged from 141 to 170 m$^{2}$/g, obtained by the Brunauer–Emmett–Teller (BET) method. The transmission electron microscopy (TEM) micrograph of the sample shows that the diameter of the grains is uniformly distributed at about 10 nm, which is consistent with that calculated by Scherrer’s method. Fe$^{3+}$ and Fe$^{2+}$ have been detected on the surface of TiO$_{2}$ powders by X-ray photoelectron spectroscopy (XPS). The UV–Vis diffuse reflection spectra indicate that the light absorption thresholds of the Fe-doped TiO$_{2}$ powders have been red-shifted into the visible light region. The photocatalytic activity of the Fe-doped TiO$_{2}$ was evaluated through the degradation of methylene blue (MB) under visible light irradiation. The Fe-doped TiO$_{2}$ powders have shown good visible-light photocatalytic activities and the maximum degradation ratio is achieved within 4.5 h.
Starting Page	329
Ending Page	336
Page Count	8
File Format	PDF
ISSN	09226168
Journal	Research on Chemical Intermediates
Volume Number	35
Issue Number	3
e-ISSN	15685675
Language	English
Publisher	Springer Netherlands
Publisher Date	2009-03-06
Publisher Place	Dordrecht
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Fe-doped TiO$_{2}$ Visible light Hydrothermal method Inorganic Chemistry Physical Chemistry Catalysis
Content Type	Text
Resource Type	Article
Subject	Chemistry

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