Method for preparing titanium dioxide nanometer material with exposed nonmetal-metal co-doped (001) surface

A technology of nanomaterials and metal doping, applied in chemical instruments and methods, chemical/physical processes, physical/chemical process catalysts, etc., to achieve the effects of improved transfer efficiency, easy control of the preparation process, and improved degradation efficiency
CN102716760AInactive Publication Date: 2012-10-10WUHAN UNIV
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
WUHAN UNIV
Publication Date
2012-10-10
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention relates to a method for preparing a TiO2 nanometer material with an exposed nonmetal-metal co-doped (001) surface. The method includes synthesizing a nonmetal-metal co-doped H2Ti3O7 nanometer material by a hydrothermal method; and using the H2Ti3O7 nanometer material as a titanium source, adding a defined amount of hydrofluoric acid into the titanium source in a second hydrothermal synthesis process, and finally preparing the TiO2 nanometer material with the exposed nonmetal-metal co-doped (001) surface. The method is simple in process, a preparation process is controlled easily, production efficiency is high, and actual application of nanometer TiO2 is greatly promoted. Compared with an anatase TiO2 nanometer material, the prepared TiO2 nanometer material with the exposed nonmetal-metal co-doped (001) surface has the advantages that visible light absorption efficiency, photon-generated carrier transfer efficiency and photoelectrochemical reaction efficiency are obviously improved, and the TiO2 nanometer material with the exposed nonmetal-metal co-doped (001) surface has an excellent application prospect in photocatalytic environmental management, dye-sensitized solar cells, harmful gas monitoring and the like.
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Description

technical field

[0001] The invention relates to a preparation method of a titanium dioxide nanometer material, in particular to a preparation method of a nonmetal-metal co-doped (001) surface exposed titanium dioxide nanometer material. Background technique

[0002] With the development of nano-science and technology, nano-semiconductor materials have been widely used in various fields such as environmental protection and new energy materials. Nano-TiO 2 Due to the fact that no photocorrosion occurs after illumination, good acid and alkali resistance, stable chemical properties, non-toxic to organisms, rich sources, high potential points for generating photogenerated electrons and holes, and strong redox performance and other excellent characteristics, It has broad application prospects in the fields of photocatalytic purification, dye-sensitized solar cells, and harmful gas monitoring. Theoretical and experimental studies in recent years have proved that TiO with (001)...

Claims

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