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One-step solvothermal synthesis of N-doped TiO2 nanoparticles with high photocatalytic activity in the reduction of aqueous Cr(VI)

Jing Li ,  Min Yang ,  Zun-Biao Jiang

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Citation:  Jing Li, Min Yang, Zun-Biao Jiang. One-step solvothermal synthesis of N-doped TiO2 nanoparticles with high photocatalytic activity in the reduction of aqueous Cr(VI)[J]. Chinese Chemical Letters, 2014, 25(2): 283-286. shu

One-step solvothermal synthesis of N-doped TiO2 nanoparticles with high photocatalytic activity in the reduction of aqueous Cr(VI)

    • 通讯作者: Jing Li,
  • 基金项目:

    This is a project funded by the cultivating project of Xuzhou Institute of Technology (No. XKY2012206) (No. XKY2012206)

    Innovative Entrepreneurial Training Program of college student in Jiangsu province (No. 201311998068X). (No. 201311998068X)

摘要: N-doped TiO2 (N-TiO2) nanoparticles were synthesized via a one-step low temperature (180 ℃) solvothermal route, which adopted NH4NO3 as the nitrogen source. The structure, composition, BET specific surface area, and optical properties of the as-synthesized product were characterized by X-ray diffraction, transmission electron microscopy, X-ray photoelectron spectroscopy, N2 adsorption- desorption isotherms, and UV-vis diffuse reflectance spectroscopy. In addition, its photocatalytic properties were tested by the reduction of aqueous Cr(VI) under UV and visible light (x > 420 nm) irradiation. It was observed that for the reduction of aqueous Cr(VI), the as-synthesized N-TiO2 nanoparticles not only exhibited much higher photocatalytic activity than P25 TiO2 under UV light, but also exhibited remarkably high photocatalytic activity under visible light (λ > 420 nm).

English

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  • 收稿日期:  2013-09-01
  • 网络出版日期:  2013-11-05
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