Photostimulation responsive intelligent catalytic material and preparation method thereof

A catalytic material and photo-stimulation technology, applied in chemical instruments and methods, catalyst protection, physical/chemical process catalysts, etc., can solve problems such as reduced surface energy, reduced catalytic activity, and easy agglomeration, so as to prevent aggregation and migration, Good protective effect, convenient and intuitive observation and judgment effect

Inactive Publication Date: 2017-04-26
JIANGSU UNIV
View PDF0 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the high specific surface area of ​​metal nanoparticles, it is easier to agglomerate during use,

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
  • Photostimulation responsive intelligent catalytic material and preparation method thereof
  • Photostimulation responsive intelligent catalytic material and preparation method thereof
  • Photostimulation responsive intelligent catalytic material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0023] Example one

[0024] Preparation of light stimulus response layer of supported catalyst nanoparticles:

[0025] 0.82g cinnamic acid hydroxyethyl methacrylate, 0.16g acrylamide, 0.24g silver nitrate and 0.01g N,N-methylenebisacrylamide dissolved in 2.5ml dimethyl sulfoxide, then add 0.08g azo Diisobutyronitrile, ultrasonic treatment for 10min, after it is completely dissolved, react at 70℃ for 2h. After the gel is polymerized, take it out, cool to room temperature and use a 0.1M sodium borohydride solution to reduce the silver nitrate in the gel. Then the obtained gel was soaked in methanol, and the solvent was changed every 8h; after 2 days, it was soaked with deionized water, and the deionized water was changed every 8h. After 2 days, a light stimulation response layer supporting catalyst nanoparticles was obtained.

[0026] Preparation of intelligent catalytic materials with double-layer structure:

[0027] 0.4 g of acrylamide was dissolved in 1.5 mL of deionized water, and...

Example Embodiment

[0028] Example two

[0029] Preparation of light stimulus response layer of supported catalyst nanoparticles:

[0030] 0.76g cinnamic acid hydroxyethyl methacrylate, 0.1g acrylamide, 0.2g silver nitrate and 0.01g N,N-methylenebisacrylamide dissolved in 2ml dimethyl sulfoxide, then add 0.06g azobis Isobutyronitrile, ultrasonic treatment for 20min, after it is completely dissolved, react at 60℃ for 3h. After the gel is polymerized, take it out, cool to room temperature and use a 0.1M sodium borohydride solution to reduce the silver nitrate in the gel. Then the obtained gel was soaked in methanol, and the solvent was changed every 8h; after 2 days, it was soaked with deionized water, and the deionized water was changed every 8h. After 2 days, a light stimulation response layer supporting catalyst nanoparticles was obtained.

[0031] Preparation of intelligent catalytic materials with double-layer structure:

[0032] 0.4 g of acrylamide was dissolved in 2 mL of deionized water, and 0.02...

Example Embodiment

[0033] Example three

[0034] Preparation of light stimulus response layer of supported catalyst nanoparticles:

[0035] 0.9g cinnamic acid hydroxyethyl methacrylate, 0.2g silver nitrate and 0.01g N,N-methylenebisacrylamide dissolved in 2.5ml dimethyl sulfoxide, then add 0.07g azobisisobutyronitrile ( ), ultrasonic treatment for 10min, after it is completely dissolved, react at 65°C for 2h. After the gel is polymerized, take it out, cool to room temperature and use a 0.1M sodium borohydride solution to reduce the silver nitrate in the gel. Then the obtained gel was soaked in methanol, and the solvent was changed every 8h; after 2 days, it was soaked with deionized water, and the deionized water was changed every 8h. After 2 days, a light stimulation response layer supporting catalyst nanoparticles was obtained.

[0036] Preparation of intelligent catalytic materials with double-layer structure:

[0037] 0.4 g of acrylamide was dissolved in 3 mL of deionized water, and 0.03 g of divi...

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 provides a photostimulation responsive intelligent catalytic material loaded with a nanoparticle catalyst and a preparation method thereof. The catalytic material has a two-layer structure. One layer is a photostimulation responsive layer loaded with a nanoparticle catalyst and the other layer is a non-responsive base layer without the catalyst. The catalyst nanometer particles are coated with a macromolecule material by an in-situ reaction so that the aggregation and migration of the nano-catalyst are effectively prevented. Through the unique double-layer structure design, the photostimulation responsive intelligent catalytic material can spontaneously and responsively control starting and stopping of a catalytic reaction under irradiation of lights with different wavelengths, the shape of the catalytic system can spontaneously and responsively produce remarkable change so that the starting and stopping states of the catalytic process can be directly observed and judged with the naked eyes and industrial production actual operation is promoted.

Description

technical field [0001] The invention relates to the field of photosensitive intelligent controllable catalysts, and specifically refers to an intelligent catalyst capable of controllable deformation and controllable catalysis under different wavelengths of light from the outside. Background technique [0002] In recent years, as a new type of catalyst, noble metal nanoparticles have received more and more attention and applications in the field of catalysis (D.Astruc, F.Lu, J.R.Aranzaes, Angew.Chem.Int.Ed.2005,44, 7852). However, due to the high specific surface area of ​​metal nanoparticles, it is easy to agglomerate during use, that is, to aggregate into large particles to reduce the surface energy, thereby reducing its catalytic activity. To solve this problem, loading noble metal nanoparticles on a suitable carrier material is an ideal method. For example, Xin Du et al. coated gold nanoparticles in hollow silicon spheres, and the prepared catalyst not only showed high ...

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): B01J31/06B01J33/00B01J35/02
CPCB01J31/06B01J33/00B01J35/0073B01J35/026
Inventor 刘荣娟胡杰冷京航胡梦婷吴新振
Owner JIANGSU UNIV
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