Fluoride-free synthesis of anatase TiO2 crystals rich in (001) facets in the presence of cationic polymer

doi:10.1016/S1872-2067(12)60679-2

Chinese Journal of Catalysis ›› 2013, Vol. 34 ›› Issue (11): 2004-2008.DOI: 10.1016/S1872-2067(12)60679-2

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Fluoride-free synthesis of anatase TiO₂ crystals rich in (001) facets in the presence of cationic polymer

Weiwei Chang, Yan Liu, Qi Sun, Xiangju Meng, Feng-Shou Xiao

Department of Chemistry, Zhejiang University, Hangzhou 310028, Zhejiang, China

Received:2013-06-14 Revised:2013-08-16 Online:2013-10-18 Published:2013-10-18
Contact: Xiangju Meng,Feng-Shou Xiao
Supported by:
This work was supported by the National Natural Science Foundation of China (U1162201 and 21003107), the National High Technology Research and Development Program of China (2013AA065301), the Science and Technology Innovative Team of Zhejiang Province (2012R10014-01), and the Fundamental Research Funds for the Central Universities (2013XZZX001).

Abstract

Abstract:

Controllable syntheses of anatase TiO₂ rich in (001) facets have attracted much attention because of the excellent photocatalytic activity of this material in dye degradation. These syntheses are normally performed in the presence of fluoride, which is environmentally unfriendly. In this study, anatase TiO₂ crystals rich in (001) facets were successfully synthesized in the presence of a cationic polymer and characterized using X-ray diffraction, scanning electron and transmission electron microscopies, and ultraviolet-visible spectroscopy. Photocatalytic tests showed that this material is very active in the degradation of methyl orange compared with conventional anatase TiO₂ crystals and a commercial P25 photocatalyst. The high activity is attributed to the rich (001) facets translation.

Key words: Anatase titanium, (001) facets, Solvothermal synthesis, Cationic polymer, High photocatalytic activity

Weiwei Chang, Yan Liu, Qi Sun, Xiangju Meng, Feng-Shou Xiao. Fluoride-free synthesis of anatase TiO₂ crystals rich in (001) facets in the presence of cationic polymer[J]. Chinese Journal of Catalysis, 2013, 34(11): 2004-2008.

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Fluoride-free synthesis of anatase TiO₂ crystals rich in (001) facets in the presence of cationic polymer

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