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Production and use for non-metallic doped nano-TiO

A non-metallic, nanotechnology, applied in the fields of nanostructure manufacturing, nanotechnology, nanotechnology, etc.

Inactive Publication Date: 2007-11-21
ZHEJIANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0010] The present invention uses TiN, TiC and TiS which have Ti-N bonds, Ti-C bonds and Ti-S bonds themselves 2 As precursors, use TiN, TiC and TiS without providing other sources of nitrogen, carbon, sulfur and titanium 2 The existing Ti-N bond, Ti-C bond and Ti-S bond can be directly synthesized with nitrogen, carbon and sulfur doped nano-TiO by hydrothermal synthesis method 2-X N X 、TiO 2-X C X and TiO 2-X S X , to overcome some defects in the prior art due to unavoidable high-temperature burning

Method used

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  • Production and use for non-metallic doped nano-TiO
  • Production and use for non-metallic doped nano-TiO
  • Production and use for non-metallic doped nano-TiO

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Embodiment 1

[0023] Hydrothermal preparation conditions: TiN is used as the precursor, the molar concentration is 0.1M, the pH value of the solution is controlled by HCl, the molar concentration is 2M, the hydrothermal temperature is 110°C, the hydrothermal time is 60h, and the filling degree is 50%. After the hydrothermal synthesis reaction, the non-metal doped nano-TiO was obtained by washing, drying and grinding 2 catalyst.

Embodiment 2

[0025] Hydrothermal preparation conditions: TiN is used as the precursor, the molar concentration is 3M, and H 2 SO 4 To control the pH value of the solution, the molar concentration is 0.1M, the hydrothermal temperature is 300°C, the hydrothermal time is 1h, and the filling degree is 30%. After the hydrothermal synthesis reaction, the non-metal doped nano-TiO was obtained by washing, drying and grinding 2 catalyst.

Embodiment 3

[0027] Hydrothermal preparation conditions: TiN is used as the precursor, the molar concentration is 0.5M, CH 3COOH is used to control the pH value of the solution, its molar concentration is 0.5M, the hydrothermal temperature is 200°C, the hydrothermal time is 24h, and the filling degree is 90%. After the hydrothermal synthesis reaction, the non-metal doped nano-TiO was obtained by washing, drying and grinding 2 catalyst.

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Abstract

Production non-metal doped nano-TiO2 is carried out by taking Ti non-metal compound as precursor, mixing it with acid and water, hydrothermal synthetic reacting at 110-300 degree for 1-60 hrs, washing, drying and grinding to obtain nano-TiO2 catalyst. It has no secondary pollutant and inactivation and better light catalytic effect.

Description

technical field [0001] The invention relates to a non-metal doped nano-titanium dioxide photocatalyst, a preparation method thereof and an application of photocatalytic degradation of organic matter. The catalyst is mainly used in the technical field of indoor air pollution control. Background technique [0002] In recent years, the problem of air pollution has become the three major sources of pollution that affect the human living environment together with rainwater and solid waste. Although air pollution is mainly outdoors in general, indoor air pollution is the main source of pollution that affects people's health. In the late 1990s, with the domestic housing reform and the improvement of national living standards, especially the rapid development of the building materials industry and the rise of decoration fever, the pollution caused by decoration materials has become the main form of indoor pollution. [0003] Under the current living conditions in our country, the c...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C01G23/053B01J21/06B82B3/00
Inventor 吴忠标顾卓良赵伟荣王海强董帆郭森
Owner ZHEJIANG UNIV
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