Preparation and application of polymer carrier coated transition metal doped molybdenum sulfide nanoparticle composite catalytic material

A high-molecular polymer, transition metal technology, applied in organic compound/hydride/coordination complex catalyst, physical/chemical process catalyst, chemical/physical process, etc. Cumbersome process, secondary pollution of water and other problems, to achieve the effect of increasing catalytic active sites, solving easy aggregation and efficient reduction

Inactive Publication Date: 2019-07-23
HEFEI UNIV OF TECH
View PDF10 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] The purpose of the present invention is to address the deficiencies in the prior art and provide a preparation and application of a polymer carrier-coated transition metal-doped molybdenum sulfide nanoparticle composite catalytic material. The technical problem to be solved is: to select a suitable carrier material , to solve the problems of cumbersome carrier preparation process, long synthesis time, harsh experimental conditions, incapable of large-scale production, easy aggregation of powder catalyst, loss of deactivation and poisoning, difficult recovery, secondary pollution to water, and how to improve the catalytic activity of the catalyst technical issues

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 and application of polymer carrier coated transition metal doped molybdenum sulfide nanoparticle composite catalytic material
  • Preparation and application of polymer carrier coated transition metal doped molybdenum sulfide nanoparticle composite catalytic material
  • Preparation and application of polymer carrier coated transition metal doped molybdenum sulfide nanoparticle composite catalytic material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0042] In this example, the polymer carrier-coated zinc-doped molybdenum sulfide nanoparticle composite catalytic material was first prepared according to the following steps:

[0043] (1) Preparation of zinc-doped molybdenum sulfide nanoparticles:

[0044] 12.4mmol ammonium molybdate tetrahydrate and 0.16mol ZnCl 2 Place in a beaker containing 1L of deionized water, stir at room temperature for 2h, then add 200mmol thiourea and continue stirring for 1h at room temperature, the resulting mixed solution is hydrothermally reacted at 180°C for 18h; tube furnace, at N 2 In the atmosphere, the temperature was raised to 700°C at a constant rate of 10°C / min, and the constant temperature was reacted for 2 hours; after the reaction, the N 2 Cool to room temperature in the atmosphere, and the obtained black powder is zinc-doped molybdenum sulfide nanoparticles, which are fully ground and bottled for use;

[0045] (2) Coating of polyvinylidene fluoride carrier

[0046] Add 4g of zinc...

Embodiment 2

[0061] In this example, first, the polymer carrier-coated zinc-doped molybdenum sulfide nanoparticle composite catalytic material was prepared according to the same method as in Example 1, the only difference being that ferric chloride was used instead of zinc salt.

[0062] With the composite membrane material obtained in this example, the same structure and method as in Example 1 were used to reduce the heavy metal hexavalent chromium, and the final reduction rate of hexavalent chromium was 90%.

Embodiment 3

[0064] In this example, first, the polymer carrier-coated zinc-doped molybdenum sulfide nanoparticle composite catalytic material was prepared according to the same method as in Example 1, the only difference being that cobalt chloride was used instead of zinc salt.

[0065] With the composite membrane material obtained in this example, the same structure and method as in Example 1 were used to reduce the heavy metal hexavalent chromium, and the final reduction rate of hexavalent chromium was 80%.

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 preparation and an application of a polymer carrier coated transition metal doped molybdenum sulfide nanoparticle composite catalytic material. The composite catalytic materialuses a polymer as a carrier and is coated with transition metal doped molybdenum sulfide nanoparticles. The composite catalytic material has the advantages of excellent performance, high mechanical strength, large specific surface area, rich aperture structure and strong hydrophilic property. An integrated formic acid coupled catalytic reactor constructed based on the composite catalytic materialcan efficiently reduce heavy metal hexavalent chromium pollutants.

Description

technical field [0001] The invention relates to the technical field of preparation of inorganic catalysts, in particular to the preparation and application of a transition metal-doped molybdenum sulfide nanoparticle composite catalytic material coated with a polymer carrier. Background technique [0002] With the rapid development of industries such as electroplating, pigments, leather production, chemicals, and vehicles, a large amount of heavy metal pollutants such as chromium slag, tanning sewage, and electroplating wastewater are produced. Among them, hexavalent chromium is extremely toxic, and has obvious carcinogenic, teratogenic and mutagenic effects, which seriously affect human health and ecological environment safety. Therefore, how to effectively solve the problem of hexavalent chromium pollution has become a current research hotspot. [0003] Currently, the treatment technologies for hexavalent chromium in water mainly include physical adsorption, biofilm separa...

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): B01J31/34B01J35/10C02F1/70C02F101/22
CPCB01J31/34C02F1/70C02F2101/22B01J35/396B01J35/653B01J35/651B01J35/647
Inventor 姚运金高梦雪胡欢欢尹红玉余茂静
Owner HEFEI UNIV OF 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