Supercharge Your Innovation With Domain-Expert AI Agents!

Preparation method of titanium dioxide aerogel

A technology of titanium dioxide and airgel, which is applied in the direction of titanium dioxide, chemical instruments and methods, titanium oxide/hydroxide, etc., can solve the problems of high cost, unsuitable for mass production, complexity, etc., and achieve simple, feasible and widely practical preparation process The effect of application value and industrial production prospect

Pending Publication Date: 2022-04-05
CHANGZHOU INST OF TECH
View PDF5 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the acquisition of ceramic aerogels such as titanium dioxide often involves processes such as freezing / supercritical drying, which are relatively complicated, costly, and not suitable for mass production

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 titanium dioxide aerogel

Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0021] The preparation method of titanium dioxide airgel of the present invention, comprises the steps:

[0022] Step 1. A certain amount of titanium dioxide powder is used as raw material, placed in a certain volume and a certain concentration of NaOH aqueous solution, and ultrasonically treated for a certain period of time, followed by hydrothermal synthesis at a certain temperature, and then the obtained white block product is used to remove Wash several times with ionized water, then soak in a certain concentration of low surface energy organic reagent (such as: acetone, methanol, ethanol, etc.) Glue precursor;

[0023] Step 2, placing the titanium dioxide airgel precursor in a muffle furnace for heat treatment at a certain temperature for a certain period of time to obtain the titanium dioxide airgel.

[0024] The quality of titanium dioxide powder described in step 1 is 2~3g; The volume of described NaOH aqueous solution is 100mL; Concentration is 5~10mol / L; The time of...

Embodiment 1

[0028] Weigh a certain amount of NaOH at room temperature, dissolve it in a certain amount of deionized water, and prepare a 10mol / L NaOH aqueous solution; then place 2g of titanium dioxide powder in the above-mentioned 100mL NaOH aqueous solution, ultrasonically treat it for 20min, and then transfer the mixture to water Heat the reaction kettle; then place it in an oven at 200°C for 24 hours; after the reaction kettle is naturally cooled, wash the white block product with deionized water for 5 times; then place it in an aqueous ethanol solution with a volume fraction of 100%. 24 hours; drying in an oven at 200°C for 2 hours to obtain a titanium dioxide airgel precursor. The titania airgel precursor was placed in the central position of the muffle furnace, and in the air atmosphere, the reaction time was 1h at a constant temperature of 600°C (the heating rate from room temperature to the set temperature was 10°C / min), and the titania gas was prepared. gel. The obtained titani...

Embodiment 2

[0030] Weigh a certain amount of NaOH at room temperature, dissolve it in a certain amount of deionized water, and prepare an 8mol / L NaOH aqueous solution; then place 3g of titanium dioxide powder in the above-mentioned 100mL NaOH aqueous solution, sonicate for 10min, and then transfer the mixture to water Heat the reaction kettle; then place it in an oven at 180°C for 24 hours; after the reaction kettle is naturally cooled, wash the white block product with deionized water for 4 times; then place it in an aqueous solution of acetone with a volume fraction of 60%. 24 hours; drying in an oven at 180°C for 1 hour to obtain a titanium dioxide airgel precursor. The titanium dioxide airgel precursor was placed in the central position of the muffle furnace, and in the air atmosphere, the reaction time was 2h at a constant temperature of 600°C (the heating rate from room temperature to the set temperature was 5°C / min), and the titanium dioxide airgel was prepared. gel. The obtained ...

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
Login to View More

Abstract

The invention relates to application of a micro-nano material preparation technology, in particular to a preparation method of titanium dioxide aerogel, the preparation method is simple and convenient for industrial production, and has a wide application prospect. The method comprises the following steps: step 1, taking titanium dioxide powder as a raw material, putting the titanium dioxide powder into a NaOH aqueous solution, carrying out hydrothermal synthesis in a specified temperature range, then washing an obtained white block product with deionized water for multiple times, then putting the white block product into an aqueous solution of a low-surface-energy organic reagent to be soaked, and then putting the white block product into a drying oven at a specified temperature to be dried, so as to obtain a titanium dioxide powder precursor; a titanium dioxide aerogel precursor is obtained; 2, the titanium dioxide aerogel precursor is placed in a muffle furnace to be subjected to heat treatment at the specified temperature, and the titanium dioxide aerogel is obtained. The material has the characteristics of simplicity and practicability, has important practical significance in promoting effective application of the material in the fields of fire resistance, flame retardance, heat preservation, energy conservation, environmental protection and the like, is simple and feasible in preparation process, and has wide practical application value and industrial production prospect.

Description

technical field [0001] The invention relates to the application of micro-nano material preparation technology, in particular to a preparation method of titanium dioxide airgel. Background technique [0002] Titanium dioxide has excellent physical and chemical properties and is cheap. It has important application prospects in the fields of fire resistance, flame retardancy, heat preservation, energy saving and environmental protection. At present, the acquisition of ceramic aerogels such as titanium dioxide often involves processes such as freezing / supercritical drying, which are relatively complicated, costly, and not suitable for mass production. Contents of the invention [0003] In order to solve this problem, the present invention proposes a preparation method of titanium dioxide airgel, which is simple and convenient for industrial production, and has broad application prospects. [0004] In order to solve the above-mentioned technical problems, the technical solutio...

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): C01G23/047B01J13/00
Inventor 王玮王成爱毕恒昌
Owner CHANGZHOU INST OF TECH
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