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

(DTA)7[PW10(TiO2)2O38]/TiO2 composite nano fiber and preparation method thereof

A composite nanofiber and nanofiber technology, applied in the field of nanomaterials, can solve the problems of easy agglomeration of catalytic sites, low catalytic efficiency, etc., and achieve the effects of improving catalytic effect, simple preparation process and solving polyacid agglomeration.

Inactive Publication Date: 2017-09-22
NORTHEAST NORMAL UNIVERSITY
View PDF5 Cites 5 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the preparation methods of this kind of heterogeneous catalysts are mainly concentrated in the solid phase method and layer-by-layer deposition method. The obtained catalysts are generally granular, and the catalytic sites are easy to agglomerate, resulting in low catalytic efficiency.

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
  • (DTA)7[PW10(TiO2)2O38]/TiO2 composite nano fiber and preparation method thereof
  • (DTA)7[PW10(TiO2)2O38]/TiO2 composite nano fiber and preparation method thereof
  • (DTA)7[PW10(TiO2)2O38]/TiO2 composite nano fiber and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] 10g of butyl titanate is dissolved in 80g of a mixed solvent consisting of N,N-dimethylformamide, glacial acetic acid and acetylacetone (by mass ratio N,N-dimethylformamide: glacial acetic acid: acetylacetone = 70:9:1), stirred for 10 min, then added 10 g of polyvinylpyrrolidone (molecular weight: 90,000), and stirred magnetically until a uniform and transparent mixed solution was formed.

[0028] Add the precursor solution prepared above into the syringe of the electrospinning device. The inner diameter of the nozzle of the syringe is 0.5-1.5mm, the angle between the nozzle and the horizontal is about 5-10°, and the curing distance between the nozzle and the receiver is about 15-18cm, add a voltage of about 12-16kV to the nozzle, room temperature 20-25°C, relative humidity 50%-60%, use barbed wire as the receiving carrier, and electrospin PVP / Ti(OC 4 h 9 ) 4 composite nanofibers. PVP / Ti(OC 4h 9 ) 4 The composite nanofibers were placed in a crucible, placed in a m...

Embodiment 2

[0034] Prepare 5mL of n-octane solution with a sulfur content of 500ppm dibenzothiophene, add it to a round bottom flask, keep the temperature in a water bath at 50-80°C for 15 minutes, then add 1mL of 1-butyl-3-methylimidazole hexafluoro Phosphate as extractant, 31 μL of H 2 o 2 As an oxidizing agent, 0.01 g of (DTA) 7 [PW 10 (TiO 2 ) 2 o 38 ] / TiO 2 Composite nanofibers were used as a catalyst, and the supernatant oil sample was taken out after a certain time interval of reaction, and analyzed by a high-performance liquid chromatography analyzer. The results showed that: adding 31 μL of H 2 o 2 , after 30 minutes of reaction, 0.01g (DTA) at 70°C 7 [PW 10 (TiO 2 ) 2 o 38 ] / TiO 2 The catalytic efficiency of the composite nanofiber catalyst is 100%, see Figure 4 shown.

[0035] Use 0.01g of catalyst to completely remove 500ppm of DBT in the simulated oil within 30 minutes at 70°C, which solves the problem of multi-acid agglomeration in the granular catalytic mate...

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 (DTA)7[PW10(TiO2)2O38] / TiO2 composite nano fiber and a preparation method thereof. The (DTA)7[PW10(TiO2)2O38] / TiO2 composite nano fiber comprises the following components in percentage by weight: 28% of (DTA)7[PW10(TiO2)2O38] and 72% of TiO2. The (DTA)7[PW10(TiO2)2O38] / TiO2 composite nano fiber has an excellent desulfurization performance and is prepared by combining an electro-spinning technology and a hydrothermal technology. The preparation technology is simple, the stability is high, the product can be easily separated from the reaction system, and the material morphology is controllable. The (DTA)7[PW10(TiO2)2O38] catalytic sites are evenly distributed on TiO2 nano fibers, and the catalytic effect of the catalyst in an extraction catalytic oxidation-desulfurization system is effectively improved.

Description

technical field [0001] The invention relates to the technical field of nanomaterials, in particular to a (DTA) 7 [PW 10 (TiO 2 ) 2 o 38 ] / TiO 2 composite nanofibers. Background technique [0002] In recent years, environmental and energy issues have become two major issues facing mankind. Especially sulfur oxides (SOx) emitted from the combustion of sulfur-containing fuel x ), has seriously affected human health and social and economic development. With the introduction of increasingly stringent laws and regulations on the sulfur content in fuel oil (sulfur content less than 10ppm), ultra-deep desulfurization of fuel oil has attracted the attention of scientists and has become a major problem in industrial refining. Extraction catalytic oxidation desulfurization technology is a desulfurization technology with simple operation, mild reaction conditions and high desulfurization efficiency among the current oil desulfurization methods. Exploring more effective catalysts...

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): D01F9/08D01F11/00B01J35/06B01J31/38B01J27/188
CPCD01F9/08D01F11/00B01J27/188B01J31/38B01J35/58
Inventor 张宏马雯雯马凯文
Owner NORTHEAST NORMAL UNIVERSITY
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