Unlock instant, AI-driven research and patent intelligence for your innovation.

A football-shaped anatase tio with exposed high-energy crystal facet {001} 2 Powder and its preparation method

A {101}, anatase technology, applied in the direction of titanium oxide/hydroxide, titanium dioxide, etc., to achieve the effect of good crystallization, short time and simple steps

Active Publication Date: 2016-08-24
BEIJING UNIV OF TECH
View PDF3 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Currently, nano-TiO 2 Although the development of the preparation process has achieved remarkable results, there are still many problems in production and technical improvement. How to obtain TiO with specific morphology 2 ; how to reduce production cost; how to improve material performance and expand application fields and so on by surface treatment technology, is the key of discussion and research of the present invention

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
  • A football-shaped anatase tio with exposed high-energy crystal facet {001} <sub>2</sub> Powder and its preparation method
  • A football-shaped anatase tio with exposed high-energy crystal facet {001} <sub>2</sub> Powder and its preparation method
  • A football-shaped anatase tio with exposed high-energy crystal facet {001} <sub>2</sub> Powder and its preparation method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] a) Measure 6.3ml of hydrochloric acid with a mass fraction of 37wt% in a 50ml volumetric flask, add deionized water to the neckline of the volumetric flask, and shake well to prepare a 1.5mol / L dilute hydrochloric acid solution.

[0027] b) Measure 1.7ml of the above-mentioned 1.5mol / L dilute hydrochloric acid solution in a 250ml volumetric flask, add deionized water to the neckline of the volumetric flask, and shake up to prepare a 0.01mol / L 250ml PH=2 dilute hydrochloric acid solution.

[0028] c) Measure 50ml of the above-mentioned dilute hydrochloric acid solution of PH=2 in a glass beaker, add 0.9912g TiF 4 , after vigorously stirring and dissolving with a glass rod, it was prepared into 0.16mol / L TiF 4 solution.

[0029] d) Measure the above 0.16mol / L TiF 4 29ml of the solution was poured into the reaction flask.

[0030] e) Measure 26.8ml of isopropanol and pour it into the reaction bottle.

[0031] f) Use a pipette to measure 0.25ml of HF with a mass fractio...

Embodiment 2

[0038] a) Measure 6.3ml of hydrochloric acid with a mass fraction of 37wt% in a 50ml volumetric flask, add deionized water to the neckline of the volumetric flask, and shake well to prepare a 1.5mol / L dilute hydrochloric acid solution.

[0039] b) Measure 1.7ml of the above-mentioned 1.5mol / L dilute hydrochloric acid solution in a 250ml volumetric flask, add deionized water to the neckline of the volumetric flask, and shake well to prepare a 0.01mol / L 250ml PH=2 dilute hydrochloric acid solution.

[0040] c) Measure 50ml of the above-mentioned dilute hydrochloric acid solution of PH=2 in a glass beaker, and add 1.1151g of TiF to it 4 , after vigorously stirring and dissolving with a glass rod, it was prepared into 0.18mol / L TiF 4 solution.

[0041] d) Measure the above 0.18mol / L TiF 4 29ml of the solution was poured into the reaction flask.

[0042] e) Measure 26.8ml of isopropanol and pour it into the reaction flask.

[0043] f) Measure 0.25ml of 40wt% HF with a pipette i...

Embodiment 3

[0050] a) Measure 6.3ml of hydrochloric acid with a mass fraction of 37wt% in a 50ml volumetric flask, add deionized water to the neckline of the volumetric flask, and shake well to prepare a 1.5mol / L dilute hydrochloric acid solution.

[0051] b) Measure 1.7ml of the above-mentioned 1.5mol / L dilute hydrochloric acid solution in a 250ml volumetric flask, add deionized water to the neckline of the volumetric flask, and shake well to prepare a 0.01mol / L 250ml PH=2 dilute hydrochloric acid solution.

[0052] c) Measure 50ml of the above-mentioned dilute hydrochloric acid solution of PH=2 in a glass beaker, add 0.9912g TiF 4 , after vigorously stirring and dissolving with a glass rod, it was prepared into 0.16mol / L TiF 4 solution.

[0053] d) Measure the above 0.16mol / L TiF 4 29ml of the solution was poured into the reaction flask.

[0054] e) Measure 26.8ml of isopropanol and pour it into the reaction flask.

[0055] f) Measure 0.25ml of 40wt% HF with a pipette into a plastic...

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

PropertyMeasurementUnit
diameteraaaaaaaaaa
sizeaaaaaaaaaa
Login to View More

Abstract

The invention belongs to the technical field of TiO2 powders and relates to football-like anatase TiO2 powder with exposed high-energy crystal faces {001} and a preparing method thereof. A circular crystal face {001} surrounds the peripheral edge of a square TiO2 crystal face {001} unidirectionally grown; a basic structure is composed of a circular crystal face {001} surrounding the single TiO2 crystal face {001}; the surface of the football-like anatase TiO2 powder is composed of multiple basic structures. The preparing method includes: adding weighed TiF4 into hydrochloric acid solution having PH: 2 to obtain TiF4 solution, adding isopropanol and HF into the TiF4 solution, transferring mixture to a polytetrafluoroethylene liner, and storing the polytetrafluoroethylene line in a stainless steel autoclave; keeping the stainless steel autoclave in an electric blow-drying box at 180 DEG C to 200 DEG C for 10 to 12 hours, performing centrifuging to obtain finished titanium dioxide, and performing washing and drying. The football-like anatase TiO2 powder and the preparing method thereof have the advantages that operation steps are simple, the shape of the product is controllable, the product is high in purity and good in crystallinity, and a great amount of crystal faces {001} with high surface energy are exposed.

Description

technical field [0001] The present invention belongs to TiO 2 In the field of powder technology, it particularly relates to a football-shaped anatase titanium dioxide powder with controllable morphology and exposed {001} high-energy crystal plane and its preparation method. Background technique [0002] Titanium dioxide is a non-toxic, insoluble in water, inorganic weak acids and organic acids, slightly soluble in alkali white powder, safe and cheap new inorganic material. At the same time, titanium dioxide also has the advantages of good chemical stability, thermal stability, photocatalysis, dielectric properties, and electrochemical corrosion resistance, and is widely used in photocatalysis, luminescent materials, solar cells, dielectric materials and antibacterial materials. Materials and many other cutting-edge fields. Titanium dioxide is used as a carrier to prepare various catalysts, which are widely used in the removal of harmful gas nitrogen oxides emitted by facto...

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 Patents(China)
IPC IPC(8): C01G23/053
Inventor 何洪张然宋丽云臧思淼苏垚超孙向丽赵嵩徐思义
Owner BEIJING UNIV OF TECH