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Journal of Applied Chemical Research
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Ghasemi, S., Fazaeli, R., Yousefi, M. (2012). Synthesis and Characterization of Doped TiO2 Nanoparticles by the Sol-Gel Method and Investigation of Photocatalytic Activity. Journal of Applied Chemical Research, 6(2), 7-19.
S. Ghasemi; R. Fazaeli; M. Yousefi. "Synthesis and Characterization of Doped TiO2 Nanoparticles by the Sol-Gel Method and Investigation of Photocatalytic Activity". Journal of Applied Chemical Research, 6, 2, 2012, 7-19.
Ghasemi, S., Fazaeli, R., Yousefi, M. (2012). 'Synthesis and Characterization of Doped TiO2 Nanoparticles by the Sol-Gel Method and Investigation of Photocatalytic Activity', Journal of Applied Chemical Research, 6(2), pp. 7-19.
Ghasemi, S., Fazaeli, R., Yousefi, M. Synthesis and Characterization of Doped TiO2 Nanoparticles by the Sol-Gel Method and Investigation of Photocatalytic Activity. Journal of Applied Chemical Research, 2012; 6(2): 7-19.

Synthesis and Characterization of Doped TiO2 Nanoparticles by the Sol-Gel Method and Investigation of Photocatalytic Activity

Article 1, Volume 6, Issue 2, Autumn 2012, Page 7-19  XML PDF (56.04 K)
Document Type: Research Paper
Authors
S. Ghasemi; R. Fazaeli* ; M. Yousefi
Abstract
Cu2+,Ce3+-doped nanostructure TiO2 -coated Nd3+ (TiO2 /Nd3+) were prepared by sol-gel method. TiO2 were synthesized by the sol-gel method using tetra n-butyl orthotitanat (TBT) as a precursor. The prepared nanoparticles characterized by FT-IR, XRD, SEM- EDS and TEM. The XRD showed that the major phase of nanocomposite is anatase. The morphology of the TiO2/Nd3+/Cu2+and TiO2 /Nd3+/Ce3+ microsphere was investigated using SEM. The TEM shows that the size of TiO2 /Nd3+/Cu2+and TiO2 / Nd3+/Ce3+were 8-10 nm. Moreover, particle shapes were spherical. IR spectrum indicated that Ti-O bond-formed in the chitosan-TiO2nano composite. Acid red 151(AR 151) removed photo-chemically by adding doped TiO2 nanoparticle and H2 O2 in the presence of the UV radiation. The results showed that the photo-degradation percentage decreased as oxidant concentration increases. The maximum degradation percentage (H2 O2 0.2M) was about 96% TiO2 / Nd3+catalyst. The result also showed that the kinetics model reaction in presence of both catalysts followed the fromof pseudo-second order equation presented by Blanchard.
Keywords
Cu2+; Ce3+- doped; kinetic; sol-gel; Chitosan
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