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

Magnetic CNx catalyst, preparation method thereof, and application of magnetic CNx catalyst in garbage rotten odor

A catalyst and magnetic technology, applied in the field of magnetic CNx catalyst and its preparation, to achieve the effects of enhancing photocatalytic activity, improving catalytic oxidation performance, and increasing relaxation time

Inactive Publication Date: 2020-09-15
CHANGZHOU INST OF TECH
View PDF0 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In order to solve the technical problem that there is no more effective catalyst in the prior art, which can better catalytically degrade the putrid gas of garbage, a magnetic CN x Catalyst and its preparation method and application in garbage putrid gas

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
  • Magnetic CNx catalyst, preparation method thereof, and application of magnetic CNx catalyst in garbage rotten odor
  • Magnetic CNx catalyst, preparation method thereof, and application of magnetic CNx catalyst in garbage rotten odor
  • Magnetic CNx catalyst, preparation method thereof, and application of magnetic CNx catalyst in garbage rotten odor

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] A preparation method of magnetic CNx catalyst, comprising the steps of:

[0031](1) Dissolve 10g of SMA in 20mL of deionized water, then add 3mL of concentrated ammonia water with a concentration of 25wt%, stir and heat, and control the heating temperature at 80°C for 3h to obtain a mixed solution A; mix 2g of Fe(NO 3 ) 3 Dissolve in 10mL deionized water to form iron salt solution;

[0032] Mix the mixed solution A with the iron salt solution, stir and react at 30° C. for 1 h, and the stirring speed is 500 rpm, to obtain the mixed solution B;

[0033] (2) The pH value of the mixed solution B is adjusted to 3 to 4 by nitric acid with a mass concentration of 10%, the nitric acid titration rate is 10mL / min, and the stirring reaction is continued for 12 hours to obtain a precipitate, filter, and wash the precipitate several times The precursor was obtained by vacuum drying at 70°C;

[0034] (3) The precursor is placed in the atmosphere furnace, and H 2 / Ar mixed gas, wh...

Embodiment 2

[0038] A preparation method of magnetic CNx catalyst, comprising the steps of:

[0039] (1) Dissolve 10g of SMA in 30mL of deionized water, then add 4mL of concentrated ammonia water with a concentration of 25wt%, stir and heat, and control the heating temperature at 60°C for 3h to obtain a mixed solution A; 3 Dissolve in 10mL deionized water to form iron salt solution;

[0040] Mix the mixed solution A with the iron salt solution, stir and react at 50° C. for 8 hours, and the stirring speed is 1000 rpm, to obtain the mixed solution B;

[0041] (2) Use hydrochloric acid with a mass concentration of 10% to adjust the pH value of the mixed solution B to 3-4, the hydrochloric acid addition rate is 5mL / min, continue to stir and react for 8h, obtain a precipitate, filter, and wash the precipitate several times The precursor was obtained by vacuum drying at 100°C;

[0042] (3) The precursor is placed in the atmosphere furnace, and H 2 / Ar mixed gas, where H 2 The mass concentrat...

Embodiment 3

[0046] A preparation method of magnetic CNx catalyst, comprising the steps of:

[0047] (1) Dissolve 8g of SMA in 20mL of deionized water, then add 5mL of concentrated ammonia water with a concentration of 25wt%, stir and heat, and control the heating temperature at 100°C for 4 hours to obtain a mixed solution A; 3 [Fe(CN) 6 ] was dissolved in 10mL deionized water to form an iron salt solution;

[0048] Mix the mixed solution A with the iron salt solution, stir and react at 100° C. for 1 hour at a stirring speed of 30,000 rpm to obtain the mixed solution B;

[0049] (2) The pH value of the mixed solution B is adjusted to 3 to 4 by nitric acid with a mass concentration of 10%, the nitric acid titration rate is 1mL / min, and the stirring reaction is continued for 4h to obtain a precipitate, filter, and wash the precipitate several times The precursor was obtained by vacuum drying at 100°C;

[0050] (3) The precursor is placed in the atmosphere furnace, and H 2 / Ar mixed gas, ...

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
particle diameteraaaaaaaaaa
Login to View More

Abstract

The invention relates to a magnetic CNx catalyst, and a preparation method and application thereof. The preparation method comprises the following steps: (1) dissolving a surfactant containing acid anhydride in water, then adding an amine compound, stirring, heating, reacting for 3-4 h to obtain a mixed solution A, dissolving an iron salt compound in water to form an iron salt solution, mixing themixed solution A with the ferric salt solution, and carrying out a stirring reaction for 1-24 h to obtain a mixed solution B; (2) adjusting the mixed solution B to be acidic, continuously stirring and reacting for 2-12 h to obtain a precipitate, filtering, washing the precipitate for multiple times, and drying to obtain a precursor; and (3) putting the precursor into an atmosphere furnace, introducing hydrogen into inert gas, and carrying out a hydrogenation reduction reaction at 300-500 DEG C to finally obtain the magnetic CNx catalyst. The catalytic degradation rate of the magnetic CNx catalyst prepared by the method to the organic sulfur compound and the organic amine compound is greater than 60%.

Description

technical field [0001] The invention relates to the technical field of inorganic catalysts, in particular to a magnetic CN x Catalyst and its preparation method and application in garbage putrid gas. Background technique [0002] With the improvement of people's living standards, the major cities in China have produced a huge amount of garbage. Among them, the rancid gas generated during garbage collection, stacking and transshipment has become one of the main problems plaguing urban residents, which always affects people's health and daily life. In view of the requirement of efficient and green reduction of odor at the perishable waste disposal end, it is necessary to study a new type of degradation equipment for photocatalytic degradation of the odor collected by ventilation, which can pass molecules such as hydrogen sulfide and methyl mercaptan in the odor through Photocatalysis is completely converted into odorless compounds such as sulfate ions, carbon dioxide, and wa...

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): B01J27/24B01J35/10B01J37/18B01J37/08B01D53/86B01D53/48B01D53/54
CPCB01J27/24B01J37/18B01J37/082B01D53/8603B01D53/8621B01D2257/306B01J35/50B01J35/40B01J35/33B01J35/61
Inventor 张震威乐传俊魏雪姣吴泽颖邓瑶瑶向梅张微
Owner CHANGZHOU INST OF TECH
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