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Citation: SHEN Shui-Fa, CHANG Min-Jie, CHE Rong-Feng, PAN Hai-Bo, CHEN Nai-Sheng. Preparation of Bi-crystalline (Monocline and Anatase) TiO2/MWNTs Composite and Its Photocatalytic Activity under Visible Light Irradiation[J]. Chinese Journal of Inorganic Chemistry, ;2013, 29(11): 2327-2332. doi: 10.3969/j.issn.1001-4861.2013.00.369 shu

Preparation of Bi-crystalline (Monocline and Anatase) TiO2/MWNTs Composite and Its Photocatalytic Activity under Visible Light Irradiation

  • 1.

    College of Chemistry and Chemical Engineering, Fuzhou University, Fuzhou 350108, China

  • Received Date: 11 April 2013
    Available Online: 20 July 2013

    Fund Project: 国家自然科学基金(No.21101028) (No.21101028)福建省自然科学基金(No.2012J01204,No.2012J0102) (No.2012J01204,No.2012J0102)福建省教育厅(No.JK2012002)资助项目。 (No.JK2012002)

  • Abi-crystalline (monocline and anatase) titanium dioxide/multi-walled carbon nanotubes (TiO2/MWNTs) composite was prepared through the hydrothermal reaction of tetrabutyl titanate and sodium hydroxide with butyl end-capped fatty alcohol ethoxylates as phase regulator, and its photocatalytic property under visible light irradiation was investigated. The results show: the adding of MWNTs can affect crystalline phase and improve the photocatalytic activity of TiO2, the product with 5% MWNTs exhibits the greatest photocatalytic degradation rate;the photocatalytic activity of the products greatly increases with the increase of calcination temperature. The effect of doping MWNTs originates from (1) facilitating the formation of bi-crystalline phase with monocline and anatase, and (2) excellent conductivity of MWNTs, or (3) the carbon doping effect rooting in the breaking down of MWNTs under higher temperature.
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