Unlock instant, AI-driven research and patent intelligence for your innovation.

Mimic enzyme catalyst preparation method and application thereof

An enzyme catalyst and catalyst technology, applied in the field of nanomaterials, can solve the problems of easy burying of edge active sites, unfavorable biological application research, complicated preparation methods, etc., and achieve the effects of shortening preparation time, excellent bacterial killing effect, and improving antibacterial performance.

Inactive Publication Date: 2020-09-29
UNIV OF JINAN
View PDF5 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, molybdenum disulfide is easy to agglomerate, which will lead to the reduction of its surface defects, and its edge active sites are easy to bury
At present, there have been some reports on the preparation of molybdenum disulfide with exposed highly active sites by vapor deposition, but it must be prepared on a substrate, which is not conducive to subsequent biological application research, and the preparation method is complicated and the equipment required is expensive.

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
  • Mimic enzyme catalyst preparation method and application thereof
  • Mimic enzyme catalyst preparation method and application thereof
  • Mimic enzyme catalyst preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] (1) Dissolve 260 mg of ammonium tetrathiomolybdate in 15 mL of dimethylformamide to obtain a dispersion, then add 1 mL of 1 mg / mL graphene oxide solution into the dispersion, and stir evenly;

[0019] (2) Add the above-mentioned dispersion into the reactor, and heat it to 200°C for 10 hours under stirring using a microwave reactor;

[0020] (3) Filter the solution after the reaction in step (2), wash the generated precipitate with deionized water and ethanol, and then dry the separated precipitate. That is, a molybdenum disulfide / graphene composite catalyst with high-efficiency enzyme-like catalytic activity is obtained.

Embodiment 2

[0034] (1) Dissolve 260 mg of ammonium tetrathiomolybdate in 15 mL of dimethylformamide to obtain a dispersion, then add 0.5 mL of 1 mg / mL graphene oxide solution into the dispersion, and stir evenly;

[0035] (2) Add the above dispersion liquid into the reactor, and heat it to 190°C for 6 hours under the condition of stirring by microwave reactor;

[0036] (3) Filter the solution after the reaction in step (2), wash the generated precipitate with deionized water and ethanol, and then dry the separated precipitate. That is, a molybdenum disulfide / graphene composite catalyst with high-efficiency enzyme-like catalytic activity is obtained.

Embodiment 3

[0038] (1) Dissolve 260 mg of ammonium tetrathiomolybdate in 15 mL of dimethylformamide to obtain a dispersion, then add 5 mL of 1 mg / mL graphene oxide solution into the dispersion, and stir evenly;

[0039] (2) Add the above-mentioned dispersion into the reactor, and heat it to 200°C for 10 hours under stirring using a microwave reactor;

[0040] (3) Filter the solution after the reaction in step (2), wash the generated precipitate with deionized water and ethanol, and then dry the separated precipitate. That is, a molybdenum disulfide / graphene composite catalyst with high-efficiency enzyme-like catalytic activity is obtained.

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
diameteraaaaaaaaaa
Login to View More

Abstract

The invention discloses a molybdenum disulfide / graphene composite material mimic enzyme catalyst and a preparation method thereof. The catalyst is prepared through a microwave hydrothermal method; molybdenum disulfide nanosheets vertically grow on the surface of graphene, and a molybdenum disulfide / graphene vertical heterostructure is formed. According to the preparation method, molybdenum disulfide nanosheets vertically grow on graphene nanosheets, so more active sites are exposed; molybdenum disulfide synthesized by a microwave method has more defects, has stronger mimic enzyme activity, catalase-like activity, peroxidase-like activity and oxidase-like activity, and can be used for antibacterial materials, antibacterial preparations and the like. The preparation method provided by the invention is simple and convenient, the preparation time is short, and the prepared composite material has more defects, exposes more active sites, has higher pseudo-enzyme catalytic activity, and improves the sterilization efficiency.

Description

technical field [0001] The invention relates to the field of nanometer materials, in particular to a molybdenum disulfide / graphene vertical heterostructure enzymatically imitating catalytic material and its preparation method and application. Background technique [0002] Molybdenum disulfide (MoS2) is a typical graphene-like two-dimensional transition metal dichalcogenides (TMDs), which has unique physical and chemical properties, so it has a wide range of applications in the fields of catalysis, batteries, and optoelectronic devices. The application of nano-MoS2 in the field of biomedicine has also attracted much attention, which is mainly due to the enzymatic activity of molybdenum disulfide, especially the high catalase-like activity, which can catalyze hydrogen peroxide into oxidation ability of hydroxyl radicals. [0003] Existing studies have shown that the enzymatic activity of molybdenum disulfide originates from its lattice defects, and the edges of its nanosheets...

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 Applications(China)
IPC IPC(8): B01J27/051B01J35/02A01N59/00A01N59/02A01P3/00A01P1/00B01J37/10B01J37/34
CPCB01J27/051A01N59/02A01N59/00B01J37/346B01J37/10B01J35/40
Inventor 王龙伟于欣丁龙华
Owner UNIV OF JINAN
PatSnap Eureka logo

PatSnap Eureka turns technology decisions into work you can execute. Powered by our Innovation Knowledge Graph, it runs expert workflows across engineering, life sciences, materials and intellectual property. Get your review-ready output in minutes.

X (Twitter)LinkedInYouTubeSubstack

© 2026 PatSnap. All rights reserved. 

Terms of Service

 | 

Privacy policy

 | 

Modern Slavery Act Transparency Statement