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

A kind of photocatalyst-loaded hydrogel and its preparation method and application

A photocatalyst and hydrogel technology, applied in chemical instruments and methods, physical/chemical process catalysts, organic compound/hydride/coordination complex catalysts, etc., can solve the unknown degradation performance of micro-pollutant atenolol , Reduce the utilization rate of light, contact efficiency, reduce the photocatalytic performance of titanium dioxide, etc., to achieve the effect of good reusability, low cost, and improved photocatalytic efficiency

Active Publication Date: 2020-02-21
NANJING UNIV
View PDF1 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Its disadvantages are: although the method steps of hydrogel-loaded catalysts are disclosed, the preparation time is long, the operation steps are complicated, the energy consumption is high, and the mechanical properties of the prepared hydrogel are unknown; although the easily degradable dye rhodan Ming B has a high degradation rate, but the degradation performance of atenolol, an environmental micro-pollutant that is difficult to degrade, is unknown; fixing titanium dioxide into a spherical monolithic photocatalyst makes titanium dioxide densely piled together, reducing the light exposure. Utilization and contact efficiency with pollutants, which in turn reduces the photocatalytic performance of TiO

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 kind of photocatalyst-loaded hydrogel and its preparation method and application
  • A kind of photocatalyst-loaded hydrogel and its preparation method and application
  • A kind of photocatalyst-loaded hydrogel and its preparation method and application

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] Such as figure 2 The photocatalyst-loaded hydrogel of this embodiment includes a hydrogel and a photocatalyst, and the photocatalyst is distributed inside and on the surface of the hydrogel.

[0041] In the prior art, the powder photocatalyst is difficult to realize recycling. In this embodiment, the powder photocatalyst is creatively loaded on the hydrogel, and the photocatalyst can be recycled. The preparation method is simple, the cost is low, the energy consumption is low, and the preparation process It is green and environmentally friendly, has good reusability, is conducive to industrial promotion, and has a good degradation effect on atenolol, a pollutant in water bodies.

Embodiment 2

[0043] Such as figure 2 The photocatalyst-loaded hydrogel of this embodiment includes a hydrogel and a photocatalyst, and the photocatalyst is distributed inside and on the surface of the hydrogel. Among them, conductive materials are added, and the conductive materials and photocatalysts are distributed in the interior and surface of the hydrogel together. In specific applications, the conductive material can be graphite or graphene. On the one hand, the combination of conductive materials and photocatalysts improves the catalytic performance of the photocatalyst itself. On the other hand, the combination of traditional hydrogels with graphite conductive materials and bismuth oxychloride photocatalytic materials endows the hydrogel with electrical response characteristics and photocatalytic activity. The photogenerated electrons generated in the catalyst can be conducted through graphite to inhibit the recombination of photogenerated electrons and holes and improve the phot...

Embodiment 3

[0045] A kind of photocatalyst-loaded hydrogel of the present embodiment, such as figure 2 As shown, further improvements are made on the basis of any one of the technical solutions in Examples 1-2, and the hydrogel includes a hydrogel polymerized from acrylic acid, acrylamide or other monomers. Utilizing the soft mechanical properties of the hydrogel itself facilitates the photocatalytic reaction.

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
lengthaaaaaaaaaa
thicknessaaaaaaaaaa
Login to View More

Abstract

The invention discloses a photocatalyst-loaded hydrogel and its preparation method and application, and belongs to the field of environmental functional materials and catalysis. It includes traditional hydrogel composite conductive materials and photocatalytic materials. Traditional hydrogels include acrylic acid / acrylamide hydrogels, or hydrogels polymerized from other monomers. Conductive materials can include graphite, graphene, etc., and photocatalysts can include bismuth oxychloride, titanium dioxide, etc. The invention immobilizes bismuth oxychloride and combines the photocatalytic performance of bismuth oxychloride with the electrical stimulation responsiveness of the hydrogel. The conductive material in the composite hydrogel can transfer the photogenerated electrons generated by bismuth oxychloride under light without affecting the mass transfer rate between the catalyst and pollutants, thereby improving the photocatalytic performance of bismuth oxychloride. The synthesis method provided by the invention is simple and efficient, can realize industrial production, and can be used to degrade atenolol and other drugs, personal care products and other organic pollutants in water.

Description

technical field [0001] The invention relates to the field of environmental functional materials and catalysis, in particular to a photocatalyst-loaded hydrogel and its preparation method and application. Background technique [0002] In addition to pesticides and industrial products with acute toxicity or carcinogenicity, there are also a large class of chemical substances with biological activity in the environment where human beings live. Such chemicals include prescription drugs and biologics, diagnostic reagents, pharmaceuticals such as sunscreens, and personal care products used by humans or animals, and have attracted widespread attention from scientists. The U.S. Environmental Protection Agency (EPA) has defined such chemical substances as PPCPs, the acronym for pharmaceuticals and personal care products. Although the content of PPCPs in the water environment is in ng L -1 —μg L -1 However, the long-term exposure caused by the continuous release of PPCPs will cause...

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): B01J31/26C02F1/30C02F101/30
CPCC02F1/30B01J31/06B01J31/26C02F2305/10C02F2101/30B01J35/39B01J35/23Y02W10/37
Inventor 毛亮郭敬翟傈李清钞
Owner NANJING UNIV
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