Preparation method and application of bismuth metal auto-doping halogenated bismuth oxide

A bismuth oxyhalide, self-doping technology, applied in chemical instruments and methods, bismuth compounds, inorganic chemistry, etc., to achieve the effects of high detection sensitivity, low cost consumption, and obvious practicability
CN106938340AInactive Publication Date: 2017-07-11JIANGSU UNIV
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
JIANGSU UNIV
Publication Date
2017-07-11
Estimated Expiration
Not applicable · inactive patent

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Abstract

The present invention provides a method for preparing bismuth metal self-doped bismuth oxyhalide and its application, which is carried out according to the following steps: first, take the ionic liquid containing halogen and put it into a polytetrafluoroethylene-lined reaction kettle, Next, add ethylene glycol and fully dissolve it; then add glucose and bismuth pentahydrate bismuth nitrate into the reaction kettle and stir until they are evenly mixed; carry out constant temperature thermal reaction, and naturally cool to room temperature after the reaction is completed; wash the solid product with alcohol , washed with water, centrifuged and dried to obtain a bismuth metal self-doped bismuth oxyhalide material. The electrode material used in the present invention is bismuth oxyhalide self-doped with bismuth metal that responds in the visible light region. Its superior photoelectric properties have been explored, and the application of bismuth oxyhalide-based materials in the field of optoelectronics has been broadened, and it has also found new opportunities for photoelectric detection. A new type of material.
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Description

technical field

[0001] The invention relates to the field of photoelectrochemical materials, in particular to a preparation method of bismuth metal self-doped bismuth oxyhalide and its application. Background technique

[0002] In recent years, photoelectrochemistry (PEC), as a newly developed technology, has received global attention and has been widely used in fields such as photolysis of water, pollutant degradation, solar energy conversion, and biosensing. The photoelectrochemical process is the process of photoelectricity generation, that is, the photosensitive material is excited by electrons under light irradiation, and the charge is transferred to the electrode surface in the form of electron transfer to generate electrochemical signals. When the energy of the irradiating light is equal to or greater than the energy of the semiconductor band gap (Eg), electrons (e - ) is excited to transition from the valence band to the conduction band, and a hole (h + ), electron...

Claims

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