Supercharge Your Innovation With Domain-Expert AI Agents!

A semiconductor photocatalytic material na 0.23 tio 2 preparation method

A technology of photocatalytic materials and semiconductors, applied in the field of photocatalytic materials, can solve the problems of not obtaining pure phase Na and low crystallinity, and achieve the effects of short preparation time, good photocatalytic performance and fast degradation rate

Inactive Publication Date: 2021-03-30
SHAANXI NORMAL UNIV
View PDF18 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This method does not yield pure phase Na 0.23 TiO 2 , and the crystallinity is not high

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 semiconductor photocatalytic material na <sub>0.23</sub> tio <sub>2</sub> preparation method
  • A semiconductor photocatalytic material na <sub>0.23</sub> tio <sub>2</sub> preparation method
  • A semiconductor photocatalytic material na <sub>0.23</sub> tio <sub>2</sub> preparation method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] 1. Mix 6.64g Ti(SO 4 ) 2 (purity 98.0%) and 3.0g NaOH (purity 96%) are added in 108mL deionized water, stir evenly, the concentration of NaOH in the gained mixed solution is 1.2mol / L, Ti(SO 4 ) 2 The concentration of the mixture is 0.25mol / L, the resulting mixture is placed in a Hastelloy stainless steel reactor, sealed, and under mechanical stirring, the temperature is raised to 320°C at a heating rate of 3°C / min, and the constant temperature hydrothermal reaction is carried out for 80 minutes. After cooling naturally to normal temperature, the reaction kettle was opened, and the product was centrifugally washed with deionized water until it was neutral.

[0021] 2. Add the product after centrifugal washing in step 1 into 108mL deionized water, then add 3.6g NaOH, stir evenly, make the NaOH concentration in the mixed solution 0.8mol / L, put the obtained mixed solution in a Hastelloy stainless steel reaction kettle , sealed, and under mechanical stirring, the temperat...

Embodiment 2

[0023] In step 1 of the present embodiment, 6.64g Ti(SO 4 ) 2 (purity 98.0%) and 5.4g NaOH (purity 96%) add 108mL deionized water, stir well, the concentration of NaOH in the gained mixed solution is 1.5mol / L, Ti(SO 4 ) 2 The concentration is 0.25mol / L, and other steps are the same as in Example 1 to obtain the semiconductor photocatalytic material Na 0.23 TiO 2 .

Embodiment 3

[0025] In step 1 of the present embodiment, 6.64g Ti(SO 4 ) 2 (purity 98.0%) and 8.1g NaOH (purity 96%) add 108mL deionized water, stir well, the concentration of NaOH in the gained mixed solution is 1.8mol / L, Ti(SO 4 ) 2 The concentration is 0.25mol / L, and other steps are the same as in Example 1 to obtain the semiconductor photocatalytic material Na 0.23 TiO 2 .

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 preparation method of a semiconductor photocatalytic material Na0.23TiO2. The method adopts a two-step hydrothermal method and comprises the following steps: step 1, directlyadding Ti(SO4)2 and NaOH into de-ionized water and carrying out hydrothermal reaction; and step 2, adding the NaOH on the basis of a hydrothermal reaction product of step 1 and continually carrying out the hydrothermal reaction to obtain the Na0.23TiO2. The preparation method is safe to operate and short in preparation time; and the prepared Na0.23TiO2 has good photocatalytic performance, can beused for degrading organic pollutants including thiazide type dyestuffs, has stable performance and is easy to recycle and reutilize.

Description

technical field [0001] The invention belongs to the technical field of photocatalytic materials, in particular to a semiconductor photocatalytic material Na 0.23 TiO 2 method of preparation. Background technique [0002] In 2018, Yang Jinhu's research group successfully synthesized binary Na with a sandwich structure in one step. 0.23 TiO 2 Nanobelt / Ti 3 C 2 Nanosheet composite; when the sandwich structure composite is used as the negative electrode material of lithium-ion / sodium-ion batteries, it exhibits excellent cycle stability and rate performance. The preparation method of the composite material is ultrasonically 100mg layered Ti 3 C 2 Disperse in 30mL of 1.0M NaOH solution. The reaction system was continuously stirred (600 Rpm) at room temperature for 100 h, and a brown precipitate was formed. The precipitate was washed several times with distilled water and ethanol, and collected by centrifugation. The obtained powder was dried in a blast furnace at 60 °C f...

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): B01J23/04B01J37/10B82Y40/00C01G23/00A62D3/17A62D101/26A62D101/28
CPCA62D3/17A62D2101/26A62D2101/28B01J23/002B01J23/04B01J37/10B82Y40/00C01G23/005C01P2002/72C01P2004/03C01P2004/04C01P2004/16
Inventor 王景州周剑平陈启文康媛媛
Owner SHAANXI NORMAL UNIV
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