Carbon-coated TiO2 material and preparation method therefor

A carbon coating and carbon source technology, applied in chemical instruments and methods, hydrogen production, chemical/physical processes, etc., can solve the problem of low catalytic activity, achieve improved catalytic activity, simplify the process, and shorten the roasting time Effect

Active Publication Date: 2017-04-19
UNIV OF ELECTRONICS SCI & TECH OF CHINA
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Problems solved by technology

[0008] To overcome the existing carbon-coated TiO 2 The problem of low catalytic activity of materials, the present invention provides a carbon-coated TiO 2 Materials and their preparation methods

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  • Carbon-coated TiO2 material and preparation method therefor
  • Carbon-coated TiO2 material and preparation method therefor
  • Carbon-coated TiO2 material and preparation method therefor

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[0035] In order to make the objectives, technical solutions and advantages of the present invention clearer, the present invention will be further described in detail below with reference to the drawings and implementation examples. It should be understood that the specific embodiments described herein are only used to explain the present invention, but not to limit the present invention.

[0036] Please refer to figure 1 , The first embodiment of the present invention provides a carbon-coated TiO 2 The material preparation method includes the following steps: Step S1, providing TiO with a carbon source 2 Precursor; step S2, using a plasma process to provide TiO with carbon source to S1 2 The precursor is calcined to form graphitic carbon deposited in situ on TiO 2 Surface to obtain carbon-coated TiO 2 material. Among them, TiO with carbon source 2 The precursor is obtained by using titanium-containing organic materials as raw materials. Therefore, there is no need to add a carbo...

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Abstract

The invention relates to a carbon-coated TiO2 material and a preparation method therefor. The preparation method for the carbon-coated TiO2 material comprises the steps of providing a TiO2 precursor with a carbon source, roasting the TiO2 precursor with the carbon source by adopting a plasma process so as to deposit graphite carbon on the surface of TiO2 in situ and obtain the carbon-coated TiO2 material. The particle size of the carbon-coated TiO2 material is 8nm to 15nm, carbon coating the TiO2 is of a graphite carbon structure, and the mass of the carbon accounts for 20% to 75.5% the total mass of the carbon-coated TiO2 material. The preparation method for the carbon-coated TiO2 material is simple in process and short in preparation cycle, the efficiency of depositing the carbon on the surface of the TiO2 in situ can be increased, and the catalytic activity of the carbon-coated TiO2 material can be improved remarkably.

Description

[0001] 【Technical Field】 [0002] The invention relates to the field of material preparation, in particular to a carbon-coated TiO 2 Materials and methods of preparation. [0003] 【Background technique】 [0004] The hydrogen economy is independent of a new energy economic system based on fossil fuels. This system not only does not produce waste gas to pollute the environment, but also can store energy, so it has attracted widespread attention and research. In the hydrogen economy, the construction of a future low-carbon energy system can be divided into two main ways: one is CO 2 The second is the development and utilization of clean energy. Among them, the efficient use of solar energy has become a research hotspot in the current scientific research field. TiO 2 As an efficient photocatalytic semiconductor material, it has excellent characteristics in the field of photocatalytic degradation of organic matter and photocatalytic cracking of water to prepare hydrogen. [0005] However...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J21/18B01J35/02B82Y40/00C01B3/04
CPCB01J21/18B01J35/004B01J35/023B82Y40/00C01B3/042Y02E60/36
Inventor 向勇张晓晴
Owner UNIV OF ELECTRONICS SCI & TECH OF CHINA
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