Sulfur doped titanate nanotube visible light catalyst material and its preparation method

A titanate and nanotube technology, applied in the fields of photocatalysts and material chemistry, can solve the problems that general products and methods do not have suitable structures and methods, and are inconvenient, and achieve improved visible light photocatalytic activity, simple process, and short cycle. Effect

Inactive Publication Date: 2012-10-17
HENAN UNIV OF SCI & TECH
View PDF5 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] It can be seen that the above-mentioned existing sulfur-doped titanate nanotube visible light catalyst material and its preparation method obviously still have inconvenience and defects in terms of product structure, manufacturing method and use, and need to be further improved urgently.
In order to solve the above-mentioned

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
  • Sulfur doped titanate nanotube visible light catalyst material and its preparation method
  • Sulfur doped titanate nanotube visible light catalyst material and its preparation method
  • Sulfur doped titanate nanotube visible light catalyst material and its preparation method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] Example 1 Preparation and method of sulfur-doped titanate nanotube visible light catalyst

[0038] Weigh 4g titanium disulfide (TiS 2 ), dispersed in 100mL of sodium hydroxide (NaOH) solution with a concentration of 10mol / L, mixed thoroughly, then moved into a stainless steel reactor lined with polytetrafluoroethylene, and reacted hydrothermally at 150°C for 24h; the resulting precipitate was filtered and used Pickling with 1mol / L hydrochloric acid solution, then washing with water until neutral, drying at 100°C for 24 hours, and finally obtaining a light gray powder which is sulfur-doped titanate nanotubes.

Embodiment 2

[0039] Example 2 Preparation and method of sulfur-doped titanate nanotube visible light catalyst

[0040] Weigh 2.5g titanium disulfide (TiS 2 ), dispersed in 100mL of sodium hydroxide (NaOH) solution with a concentration of 10mol / L, mixed thoroughly, then moved into a stainless steel reactor lined with polytetrafluoroethylene, and reacted hydrothermally at 150°C for 24h; the resulting precipitate was filtered and used Pickling with 1mol / L hydrochloric acid solution, then washing with water until neutral, drying at 100°C for 24 hours, and finally obtaining a light gray powder which is sulfur-doped titanate nanotubes.

Embodiment 3

[0041] Example 3 Preparation and method of sulfur-doped titanate nanotube visible light catalyst

[0042] Weigh 0.5g titanium disulfide (TiS 2 ), dispersed in 100mL of sodium hydroxide (NaOH) solution with a concentration of 10mol / L, mixed thoroughly, then moved into a stainless steel reactor lined with polytetrafluoroethylene, and reacted hydrothermally at 150°C for 24h; the resulting precipitate was filtered and used Pickling with 1mol / L hydrochloric acid solution, then washing with water until neutral, drying at 100°C for 24 hours, and finally obtaining a light gray powder which is sulfur-doped titanate nanotubes.

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
Wall thickness sizeaaaaaaaaaa
Login to view more

Abstract

The invention relates to a sulfur doped titanate nanotube visible light catalyst material and its preparation method, a molecular formula of the material is H2-xNaxTi4O9-ySy.H2O (0<=x<=2; 0.01<=y<=0.15). According to the preparation method, titanium disulfide and a sodium hydroxide aqueous solution are taken as raw materials, fully mixed and moved into a stainless steel reaction vessel with a teflon inner liner, a hydrothermal reaction is carried out for 10-48 hours at the temperature of 100-200 DEG C; the obtained sediment is filtered, pickled, then washed to neutrality, dried for 24-48 hours at the temperature of 50-100 DEG C to obtain the light gray powder which is sulfur doped titanate nanotube. The photocatalyst material enables wide absorption in a visible light zone, compared with the catalytic activity of undoped titanium dioxide nano-tube photocatalysts, in an extremely low sulfur doped range, the sulfur doped titanate nanotube photocatalyst presents superior visible light photocatalytic activity, and can be used in the fields of industrial waste water treatment, dye degradation and indoor harmful gas degradation and the like.

Description

technical field [0001] The invention relates to the technical field of photocatalyst and material chemistry, in particular to a sulfur-doped titanate nanotube visible light catalyst and a preparation method thereof. Background technique [0002] TiO 2 As an important semiconductor material, it has attracted much attention in the field of photocatalytic degradation and elimination of environmental pollutants due to its advantages of low cost, non-toxicity, anti-photocorrosion, high catalytic activity, strong oxidation ability, and good stability. However, due to its wide band gap energy (3.0-3.2eV), it can only show excellent photocatalytic activity under near-ultraviolet (380nm) excitation, and the solar energy utilization rate is low. In order to improve the TiO 2 The absorption efficiency of sunlight can be modified by doping. The study shows that the use of metal ion doping to modify TiO 2 The visible light photocatalytic activity of nano-TiO2 can be improved to a cer...

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): B01J27/04B82Y30/00B82Y40/00
Inventor 彭淑鸽吴峰敏王俊岭
Owner HENAN UNIV OF SCI & TECH
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