Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Preparation method of cylindrical titanium dioxide hollow particles

A titanium dioxide and hollow particle technology, which is applied in the directions of titanium dioxide, chemical instruments and methods, titanium oxide/hydroxide, etc., can solve the problems of uneven particle size of titanium dioxide particles and low catalytic activity, and achieves a simple preparation process and improves catalytic activity. , the effect of widening the active area

Active Publication Date: 2022-03-11
耐酷时(北京)科技有限公司
View PDF5 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In view of this, the present invention aims to propose a method for preparing cylindrical titanium dioxide hollow particles to solve the problems of uneven particle size and low catalytic activity of titanium dioxide particles in the prior art

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 cylindrical titanium dioxide hollow particles
  • Preparation method of cylindrical titanium dioxide hollow particles
  • Preparation method of cylindrical titanium dioxide hollow particles

Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0029] A preparation method of cylindrical titanium dioxide hollow particles, comprising the steps of:

[0030] (1) Mix and stir 3-(4-toluene)propionic acid, p-methylphenylethylamine, polyethylene-polypropylene glycol and ultrapure water to form a transparent solution;

[0031] (2) Add organic titanate to the transparent solution of step (1), and stir;

[0032] (3) the solution of step (2) is placed in the reactor to react;

[0033] (4) After centrifugation, wash the white product;

[0034] (5) The product obtained in step (4) is transferred to the HCl / ethanol mixed solution, stirring;

[0035] (6) After centrifugal separation, the target product can be obtained by washing the precipitate.

[0036] Further, in step (1), in parts by weight, the addition of 3-(4-toluene)propionic acid is 0.3-0.7 parts, the addition of p-methylphenethylamine is 2-5.5 parts, polyethylene- The addition amount of polypropylene glycol is 0.1-0.4 part, and the addition amount of ultrapure water is...

Embodiment 1

[0045] This embodiment provides a method for preparing cylindrical titanium dioxide hollow particles, which specifically includes the following steps:

[0046] (1) In parts by weight, 0.3 parts of 3-(4-toluene) propionic acid, 2 parts of p-methylphenethylamine, 0.1 parts of polyethylene-polypropylene glycol and 10-20ml of ultrapure water are mixed and stirred for 3 -5 hours, a transparent solution is formed;

[0047] (2) Add 0.3 parts of butyl orthotitanate to the transparent solution in step (1), and stir for 3-10 minutes;

[0048] (3) Place the solution in an autoclave and treat it under hydrothermal conditions of 160-180 degrees for 24-48 hours.

[0049] (4) After centrifugation, the white product was washed three times with ethanol and deionized water.

[0050] (5) The product was transferred to a mixed solution of HCl / ethanol with a volume ratio of 1:10, and stirred overnight.

[0051] (6) After centrifugation, the target product can be obtained after washing the preci...

Embodiment 2

[0053] This embodiment provides a method for preparing cylindrical titanium dioxide hollow particles, which specifically includes the following steps:

[0054] (1) In parts by weight, 0.5 parts of 3-(4-toluene) propionic acid, 4 parts of p-methylphenethylamine, 0.3 parts of polyethylene-polypropylene glycol and 10-20ml of ultrapure water are mixed and stirred for 3 -5 hours, a transparent solution is formed;

[0055] (2) Add 0.6 parts of butyl orthotitanate to the transparent solution in step (1), and stir for 3-10 minutes;

[0056] (3) Place the solution in an autoclave and treat it under hydrothermal conditions of 160-180 degrees for 24-48 hours.

[0057] (4) After centrifugation, the white product was washed three times with ethanol and deionized water.

[0058] (5) The product was transferred to a mixed solution of HCl / ethanol with a volume ratio of 1:10, and stirred overnight.

[0059](6) After centrifugation, the target product can be obtained after washing the precip...

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 preparation method of cylindrical titanium dioxide hollow particles, which comprises the following steps: (1) mixing and stirring 3-(4-toluene) propionic acid, p-methyl phenylethylamine, polyethylene-polypropylene glycol and 10-20ml of ultrapure water for 3-5 hours to form a transparent solution; (2) adding organic titanate into the transparent solution obtained in the step (1), and stirring for 3-10 minutes; (3) putting the solution in the step (2) into a high-pressure kettle, and reacting for 24-48 hours; (4) after centrifugal separation, washing a white product; (5) transferring a product obtained in the step (4) into an HCl / ethanol mixed solution, and stirring; and (6) after centrifugal separation, washing the precipitate to obtain a target product. Under a hydrothermal condition, tetrabutyl titanate is hydrolyzed into crystals through a specific ternary induction system, and unique cylindrical titanium dioxide hollow particles are obtained. The active area of catalytic reaction is greatly expanded, and the catalytic activity is improved. The preparation process of the product is relatively simple, conditions are easy to control, and large-scale industrial production is easy.

Description

technical field [0001] The invention relates to the field of catalytic materials, in particular to a method for preparing cylindrical titanium dioxide hollow particles. Background technique [0002] Under the irradiation of light, semiconductors can convert light energy into chemical energy, and the process of promoting the synthesis of compounds or decomposing compounds (organic and inorganic) is called semiconductor photocatalysis. Among many semiconductor photocatalytic materials, anatase phase TiO2 has become the most widely used semiconductor photocatalyst due to its stable chemical properties, strong oxidation-reduction, corrosion resistance, non-toxicity and low cost. [0003] TiO 2 As a photocatalyst, it has the following advantages: 1. Convert solar energy into chemical energy and utilize it. 2. The degradation speed is fast, and the OH generated by light-excited holes is a strong oxidizing free radical, which can successfully decompose most organic substances inc...

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): C01G23/053B01J21/06C02F1/30C02F101/30
CPCC01G23/053B01J21/063C02F1/30C01P2004/12C01P2004/03C01P2004/04C02F2101/308C02F2101/30B01J35/50B01J35/39
Inventor 王晟许凯张振宇李健
Owner 耐酷时(北京)科技有限公司
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com