Check patentability & draft patents in minutes with Patsnap Eureka AI!

Titanium-oxygen cluster and method for macroscopically preparing nano-titanium dioxide by virtue of titanium-oxygen cluster

A nano-titanium dioxide, titanium dioxide technology, applied in the direction of titanium dioxide, titanium oxide/hydroxide, nanotechnology, etc., to achieve the effect of improving the preparation efficiency

Inactive Publication Date: 2018-07-03
FUJIAN INST OF RES ON THE STRUCTURE OF MATTER CHINESE ACAD OF SCI
View PDF3 Cites 9 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, these methods still need to be continuously improved, and the performance of titanium dioxide as a catalyst also needs to be improved

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
  • Titanium-oxygen cluster and method for macroscopically preparing nano-titanium dioxide by virtue of titanium-oxygen cluster
  • Titanium-oxygen cluster and method for macroscopically preparing nano-titanium dioxide by virtue of titanium-oxygen cluster
  • Titanium-oxygen cluster and method for macroscopically preparing nano-titanium dioxide by virtue of titanium-oxygen cluster

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0063] Embodiment 1. Titanium sulfate cluster is as the preparation of the titanium dioxide of precursor

[0064] Measure 10 ml of distilled water into a beaker, add 3.05 g of 98% concentrated sulfuric acid, stir, add 0.178 g of organic base template piperazine during stirring, and add 0.687 g of n-butyl titanate dropwise after dissolution. Continue to stir until the solution is completely clear, let it stand for volatilization or use a rotary evaporator for rotary evaporation. After most of the water is volatilized or evaporated, seal the beaker and place it in a refrigerator at 5°C to cool for 5 hours to obtain colorless columnar sulfuric acid Titanium clusters (determined by X-ray powder diffraction), the obtained titanium sulfate clusters were filtered, dried, placed in a crucible, placed in a muffle furnace, set the firing temperature at 500°C, 600°C, 700°C, 800°C and fired for 12 hours , to obtain the desired titanium dioxide. The scanning electron microscope picture of...

Embodiment 2

[0065] Embodiment 2. the preparation of the titanium dioxide of titanium benzoate cluster as precursor

[0066] Weigh 1.13 g of benzoic acid, dissolve it in 10 ml of acetonitrile, measure 0.3 ml of isopropyl titanate and place it in a polytetrafluoroethylene reactor, add 1 ml of acetonitrile to dissolve it, and add the previously dissolved benzoic acid solution into the reactor , placed in a 100° C. oven and heated for 15 hours, cooled to obtain pale yellow acicular titanium benzoate cluster crystals (determined by X-ray powder diffraction). Filter the obtained titanium benzoate clusters, dry them, place them in a crucible, put them into a muffle furnace, set the calcination temperature at 500°C, 600°C, 700°C, 800°C and calcinate for 12 hours to obtain the desired titanium dioxide. The scanning electron microscope picture of described titanium dioxide is shown in figure 2 , the X-ray powder diffraction pattern is shown in Figure 5 The results show that the titanium dioxide...

Embodiment 3

[0067] Embodiment 3. Titanium dioxide catalyzed hydrogen production rate test

[0068] The method of the present invention can use different titanyl oxide cluster precursors to obtain titanium dioxide with different shapes, structures and catalytic efficiencies as required.

[0069] In the present embodiment, the titanium dioxide obtained in Examples 1 and 2 is used to test the hydrogen production rate, and the specific test conditions and parameters are as follows:

[0070] Add 90 ml of deionized water, 10 ml of methanol, and 40 mg of sample to the reaction kettle, add 33 microliters of chloroplatinic acid with a pipette, cover the reaction kettle, and evacuate with a vacuum pump while stirring until no bubbles are generated in the liquid , using 300W xenon lamp (full band) irradiation. Sampling once every hour, four sampling times, recording the peak area, calculating the hydrogen production and hydrogen production rate.

[0071] Table 1. Summary of hydrogen production rat...

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 provides a titanium-oxygen cluster and a method for macroscopically preparing nano-titanium dioxide by virtue of the titanium-oxygen cluster. According to the preparation method, different titanium-oxygen cluster precursors are prepared from metal titanium salt and acid by virtue of a volatilization method or a solvent thermal synthesis method. The required titanium-oxygen cluster precursors can be selected according to the requirement and is roasted so as to obtain required nano-titanium dioxide, and the preparation efficiency of titanium dioxide with a high photocatalysis effect can be remarkably improved. Titanium dioxide prepared by virtue of the preparation method has a relatively large specific surface area and a relatively good shape and can be well applied to the fields of photocatalysis water splitting, photocatalysis organic pollutant degradation, solar cells and the like.

Description

technical field [0001] The invention belongs to the technical field of nanometer material preparation and hydrogen production catalyst, and in particular relates to a titanium oxide cluster and a method for preparing nanometer titanium dioxide in a large amount. Background technique [0002] Since the commercial preparation of titanium dioxide in the early 20th century, titanium dioxide has been widely used in pigments, paints, toothpaste, sunscreen, etc. In 1972, Fujishima and Honda first discovered titanium dioxide as an electrode, which has the effect of photocatalytic water splitting under the irradiation of ultraviolet light. Since then, a large number of scientists have devoted themselves to the research of titanium dioxide materials, and its applications in photoelectricity, photocatalysis, sensing and other fields have gradually flourished. [0003] Titanium dioxide usually has three crystal forms, which are anatase, rutile and brookite. Among the three crystal for...

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
Patent Type & Authority Applications(China)
IPC IPC(8): C01G23/047B82Y40/00
CPCC01G23/047B82Y40/00C01P2002/72C01P2002/82C01P2002/84C01P2004/03C01P2004/64
Inventor 许宗雄张磊张健
Owner FUJIAN INST OF RES ON THE STRUCTURE OF MATTER CHINESE ACAD OF SCI
Features
  • R&D
  • Intellectual Property
  • Life Sciences
  • Materials
  • Tech Scout
Why Patsnap Eureka
  • Unparalleled Data Quality
  • Higher Quality Content
  • 60% Fewer Hallucinations
Social media
Patsnap Eureka Blog
Learn More

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

© 2025 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com