Preparation method of self-doped anatase type titanium dioxide film

A technology of titanium dioxide and anatase type, applied in the direction of titanium dioxide, chemical instruments and methods, titanium oxide/hydroxide, etc., to achieve the effects of good crystallinity, improved absorption efficiency, and wide spectral absorption range

Inactive Publication Date: 2017-12-19
YUNNAN UNIV
View PDF8 Cites 3 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This is yet t

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Preparation method of self-doped anatase type titanium dioxide film
  • Preparation method of self-doped anatase type titanium dioxide film
  • Preparation method of self-doped anatase type titanium dioxide film

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] In the titanium source alcohol solution formed by mixing tetrabutyl titanate and isopropanol, add a certain amount of deionized water, acetic acid and acetylacetone, and finally add a zinc acetate organic solution with a molar concentration of 2mol / L. Under pressure and 40°C, the pH of the reactant was controlled to 3, nitrogen was introduced, and stirred for 8 hours to obtain a black stable anatase-type self-doped titanium dioxide alcohol phase solution A. Add titanium sulfate dropwise to the organic solution mixed with oleic acid and cyclohexane, stir and mix, then add a certain amount of deionized water and hydrolysis inhibitor, and finally add a magnesium acetate organic solution with a molar concentration of 2mol / L. Stir at normal pressure and 40°C for 6 hours, and stir at 80°C for 2 hours. Add argon to control the pH of the reactant to 3 to obtain a black stable B solution. Place solution B with titanium sulfate solution as the titanium source in a reaction kettle ...

Embodiment 2

[0042] In the titanium source alcohol solution formed by mixing titanium isopropoxide with a mixed solution of isopropanol and n-butanol, add a certain amount of deionized water and ethyl acetate, and finally add zinc acetate with a molar concentration of 1.5 mol / L In the organic solution, the pH value of the reactant is controlled to be 4 under normal pressure and 40° C., nitrogen is introduced, and stirred for 8 hours to obtain a black stable anatase-type self-doped titanium dioxide alcohol phase solution A. Add titanium sulfate dropwise to the organic solution mixed with oleylamine and n-hexane, stir and mix, then add a certain amount of deionized water and hydrolysis inhibitor, and finally add a zinc acetate organic solution with a molar concentration of 1.5mol / L. Stir at normal pressure and 40°C for 6 hours, and stir at 80°C for 2 hours. Then, argon gas is introduced to control the pH of the reactant to 4 to obtain a black stable B solution. Place the solution B with the t...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention relates to a preparation method of a self-doped anatase type titanium dioxide film, wherein the preparation method is the further improvement on the basis of the two inventions about anatase type titanium dioxide preparation (patent application numbers are 201603151133150 and 201701200140860). According to the present invention, Ti<4+> is reduced into Ti<3+> by using metal ions on the basis of a sol-gel method and a solvothermal method to prepare the self-doped Ti<3+>-TiO2, wherein the prepared self-doped anatase type titanium dioxide sol and a self-doped anatase type titanium dioxide dispersion liquid using (101) surface as a main expose surface are homogeneously dispersed to obtain a Ti<3+>-TiO2 solution, a film is prepared through a rotary coating process, and the self-doped titanium dioxide film is sintered in a reducing atmosphere. According to the present invention, the method is simple, the prepared self-doped titanium dioxide film has advantages of substantially improved crystallinity, substantially improved chemical stability, substantially improved particle size, substantially improved uniformity and substantially improved light absorption range, and the prepared solution can directly form the film on the substrates of various materials, and can further be used as the photocatalytic environmental-protection coating material capable of being excited by visible light.

Description

Technical field [0001] The present invention relates to the field of photocatalysis and optoelectronics, in particular to the preparation of self-doped nano anatase type for photocatalyst synthesis and dye sensitization, organic, inorganic or organic / inorganic hybrid solar cell photoanode, dense layer or porous layer Low-temperature preparation method of titanium dioxide sol. Background technique [0002] Nano-anatase titanium dioxide not only has stable physical and chemical properties, but also reflects the unique small size effect, quantum effect and macro-quantum tunneling effect of nanoparticles. It has the advantages of photocatalysis, solar power generation, solar heat collection and other fields. Broad application prospects. [0003] In recent years, as energy and environmental issues have become increasingly prominent, clean and renewable energy has become a hot spot of social concern. In the process of photocatalytic degradation and the research and development of organ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
IPC IPC(8): C01G23/053C03C17/23
CPCC01G23/053C01G23/0532C01P2002/52C01P2002/72C01P2004/04C03C17/23C03C2217/212C03C2218/116
Inventor 靳映霞穆歌钟明星朱忠其张瑾柳清菊
Owner YUNNAN UNIV
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap