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

Application of Manganese Oxide Synergistic Nitrographene in Near Infrared Light Denitrification

A near-infrared light, graphene technology, applied in the direction of oxidized water/sewage treatment, chemical instruments and methods, chemical/physical processes, etc.

Active Publication Date: 2019-08-30
江苏易驰新能源集团有限公司
View PDF2 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, TiO 2 It can only use ultraviolet light, which accounts for about 4% of solar energy, for TiO 2 Doping and developing Fe 2 o 3 、WO 3 、Bi 2 WO 6 Although some new catalysts have partially solved the problem of utilizing visible light, infrared light, which accounts for nearly 50% of solar energy, still needs to be developed and utilized.

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
  • Application of Manganese Oxide Synergistic Nitrographene in Near Infrared Light Denitrification
  • Application of Manganese Oxide Synergistic Nitrographene in Near Infrared Light Denitrification

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] (1)NG-α-MnO 2 Preparation: Weigh manganese chloride and potassium permanganate (the molar ratio is 3:2), and dissolve them in 20mL deionized water respectively, add 5% nitrogen-assorted graphite of manganese dioxide theoretical yield in the manganese chloride solution Alkene, sonicated for 1 hour, transferred to a three-necked flask, heated to 85°C in a water bath, and potassium permanganate was added dropwise, refluxed for 12 hours, then filtered and washed, and vacuum-dried at 70°C for 12 hours to obtain the aza Graphene-α-manganese dioxide nanocomposite photocatalyst.

[0039] (2) Photocatalysis experiment: Wrap the wall of a 100ml beaker with tin foil to prevent ultraviolet light and visible light from entering the reaction system, and cover the mouth of the beaker with a λ>780nm cut-off filter to ensure that only near-infrared light is present. The radiation enters the photoreactor, and a 300W UV-Vis lamp is placed above the reactor. Add a certain concentration o...

Embodiment 2

[0045] NG-β-MnO 2 Preparation: Weigh manganese chloride and potassium permanganate (the molar ratio is 3:2), dissolve them in 20mL deionized water respectively, then add 5% azagraphene of manganese dioxide theoretical yield in the manganese chloride solution, Ultrasound for 1 hour, add potassium permanganate solution, stir for 30 minutes, transfer to a 100ml reaction kettle, heat at 160°C for 12h, cool to room temperature, filter and wash, and dry at 70°C for 12h under vacuum to obtain the nitrogen Heterographene-β-manganese dioxide nanohybrid photocatalyst.

[0046] (2) Photocatalysis experiment: Wrap the wall of a 100ml beaker with tin foil to prevent ultraviolet light and visible light from entering the reaction system, and cover the mouth of the beaker with a λ>780nm cut-off filter to ensure that only near-infrared light is present. The radiation enters the photoreactor, and a 300W UV-Vis lamp is placed above the reactor. Add a certain concentration of ammonia nitrogen s...

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
wavelengthaaaaaaaaaa
specific surface areaaaaaaaaaaa
particle diameteraaaaaaaaaa
Login to View More

Abstract

The invention discloses the application of manganese oxide combined with aza graphene in near-infrared light denitrification, which includes: using manganese oxide composite aza graphene material as a photocatalyst to degrade ammonia nitrogen into N under near-infrared light conditions. 2 and H 2 O. The manganese oxide composite aza graphene material of the present invention catalyzes the degradation of ammonia nitrogen. It has molecular recognition and infrared photocatalytic degradation functions for ammonia nitrogen, and can degrade ammonia nitrogen into N under near-infrared light. 2 and H 2 O. After the catalyst repeatedly catalyzes the degradation of ammonia nitrogen 5 to 10 times, it can still achieve a degradation rate of ammonia nitrogen of >92%.

Description

technical field [0001] The invention relates to a manganese oxide composite azagraphene material and its application in catalytic degradation of ammonia nitrogen by using near-infrared light. Background technique [0002] Using solar energy to solve environmental energy problems originated in 1972 when Fujishima used TiO 2 Photoelectrode electrolysis of water to produce hydrogen, followed by Carey in 1976 reported the use of TiO 2 Photocatalytic oxidation eliminates the toxicity of polychlorinated diphenols. Since then, the use of solar energy to degrade environmental pollutants has rapidly become a research hotspot. However, TiO 2 It can only use ultraviolet light, which accounts for about 4% of solar energy, for TiO 2 Doping and developing Fe 2 o 3 、WO 3 、 Bi 2 WO 6 Although some new catalysts such as X-rays have partially solved the problem of utilizing visible light, infrared light, which accounts for nearly 50% of solar energy, still needs to be developed and ut...

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): B01J27/24C02F1/72
CPCC02F1/725B01J27/24C02F2101/16B01J35/39
Inventor 刘守清朱晓雷
Owner 江苏易驰新能源集团有限公司
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