Nanometer titanium dioxide material uniform in particle size distribution

A technology of nano-titanium dioxide and particle size distribution, which is applied in the field of nano-materials, can solve problems such as complex processes, and achieve uniform particle size distribution, good photocatalytic activity, and good structural stability

Active Publication Date: 2018-09-07
绍兴市览海环保科技有限公司
View PDF2 Cites 5 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Aiming at the problems in the prior art, the present invention provides a nano-titanium dioxide material with uniform particle size distribution, which solves the pr...

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

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] A nano-titanium dioxide material with uniform particle size distribution, the preparation method of which is as follows:

[0023] Step 1: Add n-butyl titanate to absolute ethanol, add polyvinylpyrrolidone to seal and ultrasonically disperse for 10 minutes, and obtain n-butyl titanate dispersion after cooling;

[0024] Step 2, adding highly substituted hydroxypropyl cellulose to the n-butyl titanate dispersion, stirring slowly until completely dissolved, and then sealing and ultrasonicating for 20 minutes to obtain a double-dispersed n-butyl titanate dispersion;

[0025] Step 3, slowly add distilled water to the n-butyl titanate dispersion of the double dispersion system, stir evenly, seal and heat for ultrasonic reaction for 2 hours, ultrasonic evaporation reaction for 2 hours, and filter while hot to obtain the precipitate;

[0026] In step 4, the precipitate is added to the methanol reaction solution for micro-electrolysis for 3 hours, filtered, washed, and then dried...

Embodiment 2

[0032] A nano-titanium dioxide material with uniform particle size distribution, the preparation method of which is as follows:

[0033] Step 1: Add n-butyl titanate to absolute ethanol, add polyvinylpyrrolidone to seal and ultrasonically disperse for 30 minutes, and obtain n-butyl titanate dispersion after cooling;

[0034] Step 2, adding highly substituted hydroxypropyl cellulose to the n-butyl titanate dispersion, stirring slowly until completely dissolved, and then sealing and ultrasonicating for 50 minutes to obtain the n-butyl titanate dispersion of the double dispersion system;

[0035] Step 3, slowly add distilled water to the n-butyl titanate dispersion of the double dispersion system, stir evenly, seal and heat for ultrasonic reaction for 5 hours, ultrasonic evaporation reaction for 4 hours, and filter while hot to obtain the precipitate;

[0036]In step 4, the precipitate is added to the methanol reaction solution for micro-electrolysis reaction for 5 hours, filtere...

Embodiment 3

[0042] A nano-titanium dioxide material with uniform particle size distribution, the preparation method of which is as follows:

[0043] Step 1: Add n-butyl titanate to absolute ethanol, add polyvinylpyrrolidone to seal and ultrasonically disperse for 20 minutes, and obtain n-butyl titanate dispersion after cooling;

[0044] Step 2, adding highly substituted hydroxypropyl cellulose to the n-butyl titanate dispersion, stirring slowly until completely dissolved, and then sealing and ultrasonicating for 30 minutes to obtain a n-butyl titanate dispersion of a double dispersion system;

[0045] Step 3, slowly add distilled water to the n-butyl titanate dispersion of the double dispersion system, stir evenly, seal and heat for ultrasonic reaction for 3 hours, ultrasonic evaporation reaction for 3 hours, and filter while hot to obtain the precipitate;

[0046] In step 4, the precipitate is added to the methanol reaction solution for micro-electrolysis for 4 hours, filtered, washed, a...

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 discloses a nanometer titanium dioxide material uniform in particle size distribution. The nanometer titanium dioxide material is prepared through the following steps of step 1, adding titanic acid dinbutyl phthalate to anhydrous ethanol, adding polyvinylpyrrolidone, performing sealing ultrasonic dispersion for 10-30min, and performing cooling so as to obtain titanic acid dinbutyl phthalate fluid dispersion; step 2, adding hydroxypropylcelliloxe to the titanic acid dinbutyl phthalate fluid dispersion, performing slow stirring until the hydroxypropylcelliloxe completely dissolves,and then performing sealing ultrasound treatment for 20-50min, so as to obtain the titanic acid dinbutyl phthalate fluid dispersion with a double dispersing system; step 3, slowly adding distilled water to the titanic acid dinbutyl phthalate fluid dispersion with the double dispersing system, performing uniform stirring, performing sealing heating supersonic reaction for 2-5h, performing ultrasound evaporation reaction for 2-4h, and performing filtering while the processed titanic acid dinbutyl phthalate fluid dispersion is hot, so as to obtain sediment; and step 4, adding the sediment to methanol reaction liquid, performing micro electrolytic reaction for 3-5h, performing filtering and washing, and then performing drying so as to obtain the nanometer titanium dioxide material uniform inparticle size distribution. Through adoption of the nanometer titanium dioxide material disclosed by the invention, the problem that a conventional technical technology is complicated is solved; and the prepared titanium dioxide has good photocatalytic activity, and is uniform in particle size distribution and good in structural stability.

Description

technical field [0001] The invention belongs to the technical field of nanometer materials, and in particular relates to a nanometer titanium dioxide material with uniform particle size distribution. Background technique [0002] TiO as one of semiconductor photocatalysts 2 Photocatalytic materials are currently the most researched new type of environmentally friendly materials, and the properties of photocatalysts are the key factors in the photocatalytic oxidation process. TiO 2 The crystal form, grain size and particle diameter, surface state and other factors have a great influence on its photocatalytic performance. Nanoparticles with large surface area have good catalytic activity and selectivity due to their surface effect and volume effect. Nano-TiO 2 Due to its quantum size effect, the conduction band and valence band energy levels become discrete energy levels, the energy gap widens, the conduction band potential becomes more negative, and the valence band poten...

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): C01G23/053
CPCC01G23/053C01P2002/30C01P2004/52C01P2004/62
Inventor 吴亚良
Owner 绍兴市览海环保科技有限公司
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