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

Carbonitrone/silver carbonate composite nanomaterial, its preparation method and its application

A technology of composite nanomaterials and silver carbonate, applied in the field of nanomaterials, can solve problems such as unsatisfactory photocatalytic stability, and achieve the effects of simple and easy-to-control production process, improved degradation speed, and low cost.

Active Publication Date: 2020-04-07
ZHENJIANG COLLEGE
View PDF0 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Ag 2 CO 3 Semiconductor photocatalysts have high visible light photocatalytic activity for various dyes such as RhB, MO and MB, but their photocatalytic stability is not ideal enough.

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
  • Carbonitrone/silver carbonate composite nanomaterial, its preparation method and its application
  • Carbonitrone/silver carbonate composite nanomaterial, its preparation method and its application
  • Carbonitrone/silver carbonate composite nanomaterial, its preparation method and its application

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] Step (1): Weigh 10 g of a mixture of urea and melamine (molar ratio 1:1) into a crucible, and then bake in a muffle furnace at 580° C. for 1 h with a heating rate of 5 / min. The synthesized yellow powder was washed several times with deionized water and absolute ethanol, and finally dried under vacuum at 60°C for 12 hours to obtain g-C 3 N 4 Lamellar structure;

[0025] Step (2), under room temperature conditions, the g-C prepared by 2mg (1) 3 N 4 Dissolve in 20mL deionized water and ultrasonically disperse for at least 1h, then add 2mmol AgNO 3 Disperse in 20mL deionized water, and gradually add it dropwise to the above g-C after fully dissolving 3 N 4 The solution was stirred well, and finally 20mL Na 2 CO 3 10H 2 O (0.05M) solution was added dropwise to the above solution and fully stirred for 1 hour, then washed and centrifuged with deionized water and ethanol several times, and dried at 60°C to obtain a 2%-carbanitroene / silver carbonate sample, which was def...

Embodiment 2

[0027] Step (1): Add 10 g of urea and melamine mixture (molar ratio 1:0.5) weighed into the crucible, and then bake in a muffle furnace at 400° C. for 4 h with a heating rate of 5 / min. The synthesized yellow powder was washed several times with deionized water and absolute ethanol, and finally dried under vacuum at 60°C for 12 hours to obtain g-C 3 N 4 Lamellar structure;

[0028] Step (2), under room temperature conditions, the g-C prepared by 4mg (1) 3 N 4 Dissolve in 20mL deionized water and ultrasonically disperse for at least 1h, then add 2mmol AgNO 3 Disperse in 20mL deionized water, and gradually add it dropwise to the above g-C after fully dissolving 3 N 4 The solution was stirred well, and finally 20mL NaHCO 3 (0.05M) solution was added dropwise to the above solution and fully stirred for 1 hour, then washed and centrifuged with deionized water and ethanol several times, and dried at 60°C to obtain a 4%-carbanitroene / silver carbonate sample, which was defined as...

Embodiment 3

[0030] Step (1): Add 10 g of the urea-melamine mixture (molar ratio 1:6) weighed into the crucible, and then bake it in a muffle furnace at 650° C. for 0.5 h with a heating rate of 5 / min. The synthesized yellow powder was washed several times with deionized water and absolute ethanol, and finally dried under vacuum at 60°C for 12 hours to obtain g-C 3 N 4 Lamellar structure;

[0031] Step (2), under room temperature conditions, the g-C prepared by 6mg (1) 3 N 4 Dissolve in 20mL deionized water and ultrasonically disperse for at least 1h, then add 2mmol AgNO 3 Disperse in 20mL deionized water, and gradually add it dropwise to the above g-C after fully dissolving 3 N 4 The solution was stirred well, and finally 20mL K 2 CO 3 (0.05M) solution was added dropwise to the above solution and fully stirred for 1 hour, then washed and centrifuged with deionized water and ethanol several times, and dried at 60°C to obtain a 6%-carbanitroene / silver carbonate sample, which was defin...

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 a carbine-nitrene / silver carbonate composite nano-material, and a preparation method and application thereof. The composite nano-material comprises 1 to 10 wt% of g-C3N4, withthe balance being Ag2CO3, wherein Ag2CO3 microrods adhere to the surface of lamellar g-C3N4. The preparation method comprises the following steps: subjecting urea and melamine to solid phase sinteringin a tubular furnace so as to prepare a g-C3N4 nanosheet; dispersing the g-C3N4 nanosheet in deionized water under the action of stirring and supersonic waves; and then adding a soluble silver salt and a precipitating agent, allowing a solution to undergo a precipitation reaction at room temperature, and carrying out cleaning and drying so as to obtain a reaction product, i.e., the carbine-nitrene / silver carbonate composite nano-material which is applicable to treatment of organic waste water and organic pollutants in the air. Addition of the g-C3N4 effectively improves the photocatalytic degradation of organic matters.

Description

technical field [0001] The invention relates to the field of nanomaterials, in particular to a carbazene / silver carbonate composite nanomaterial, its preparation method and its use as a photocatalyst. Background technique [0002] Ag 2 CO 3 Semiconductor photocatalysts have high visible light photocatalytic activity for various dyes such as RhB, MO and MB, but their photocatalytic stability is not ideal. Therefore, there is a need to improve its stability without affecting its photocatalytic activity. Recently, graphitic carbon nitride (g-C 3 N 4 ) semiconductor photocatalysts have attracted widespread attention due to their stability, non-toxicity and bandgap energy of only 2.7eV. g-C 3 N 4 It is a non-metal semiconductor photocatalyst, which can be applied to decompose water and organic pollutants. Recently a large number of g-C 3 N 4 Composites of semiconductor photocatalysts and silver-based materials have been reported, such as g-C 3 N 4 / Ag 3 VO 4 , g-C ...

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): B01J27/24B01D53/86B01D53/44C02F1/30C02F101/30
CPCB01D53/8687B01D2258/06B01J27/232B01J27/24B01J35/0006B01J35/004C02F1/30C02F2101/30C02F2305/10
Inventor 唐国钢唐华
Owner ZHENJIANG COLLEGE
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