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

A method for preparing nitrogen-doped carbon cloth by using non-woven waste cloth

A non-woven, nitrogen-doped carbon technology, applied in carbon preparation/purification, electrolysis components, electrodes, etc., can solve problems such as product quality and adverse effects of process equipment, and achieve the effect of simple preparation process

Active Publication Date: 2022-01-28
CHANGSHU INSTITUTE OF TECHNOLOGY
View PDF0 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, recovering and recycling waste through the recycling methods described above can also adversely affect product quality and process equipment

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 method for preparing nitrogen-doped carbon cloth by using non-woven waste cloth
  • A method for preparing nitrogen-doped carbon cloth by using non-woven waste cloth

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0013] Effect of low-temperature plasma irradiation time on the catalytic performance of nitrogen-doped carbon cloth

[0014] Preparation of nitrogen-doped carbon cloth: as figure 1 As shown, take sodium chloride and dissolve it in water, prepare 1moL / L sodium chloride aqueous solution, weigh sodium chloride aqueous solution and non-woven fabric waste cloth respectively according to the liquid-solid ratio 1:1 (mL:mg), and put the non-woven fabric Soak the woven fabric waste in sodium chloride aqueous solution, take out the non-woven fabric waste 10 minutes later, and obtain the salt soaked waste fabric; spread the salt soaked waste fabric on the low-temperature plasma low-voltage electrode, and turn on the power after being exposed to the atmosphere , respectively irradiated with low-temperature plasma for 0.25 hours, 0.35 hours, 0.45 hours, 0.5 hours, 1.5 hours, 2.5 hours, 2.6 hours, 2.8 hours, and 3 hours to obtain nitrogen-doped carbon cloth, wherein the low-temperature pla...

Embodiment 2

[0020] Effect of volume ratio of hydrogen to nitrogen on the catalytic performance of nitrogen-doped carbon cloth

[0021] Preparation of nitrogen-doped carbon cloth: Weigh sodium chloride and dissolve it in water, prepare 3moL / L sodium chloride aqueous solution, and weigh the sodium chloride aqueous solution and non-woven fabric waste cloth according to the liquid-solid ratio of 2:1 (mL:mg). , soak the non-woven waste cloth in the sodium chloride aqueous solution, take out the non-woven waste cloth after 20 minutes to obtain the salt-soaked waste cloth; spread the salt-soaked waste cloth on the low-temperature plasma low-voltage electrode; after exposure to the atmosphere Turn on the power and irradiate with low-temperature plasma for 2.5 hours to obtain nitrogen-doped carbon cloth. The low-temperature plasma exposure atmosphere is a mixed gas of hydrogen and nitrogen, and the volume ratios of hydrogen and nitrogen are 1.5:100, 2:100, and 2.5, respectively. :100, 3:100, 9:100...

Embodiment 3

[0027] Effect of the distance between the dielectric plate and the salt-impregnated waste cloth on the catalytic performance of the prepared nitrogen-doped carbon cloth

[0028] Preparation of nitrogen-doped carbon cloth: Weigh sodium chloride and dissolve it in water to prepare a 5moL / L sodium chloride aqueous solution, and weigh the sodium chloride aqueous solution and non-woven fabric waste according to the liquid-solid ratio of 3:1 (mL:mg). , soaking the waste non-woven fabric in sodium chloride aqueous solution, taking out the waste non-woven fabric after 30 minutes to obtain the salt-soaked waste cloth; spreading the salt-soaked waste cloth on the low-voltage electrode of the low-temperature plasma. After being exposed to the atmosphere, turn on the power supply and irradiate with low-temperature plasma for 2.5 hours to obtain nitrogen-doped carbon cloth. The body irradiation voltage is 50kV, and the low-temperature plasma irradiation uses a dielectric baffle to discharge....

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 method for preparing nitrogen-doped carbon cloth by using non-woven waste cloth. The non-woven waste cloth is soaked in sodium chloride aqueous solution to obtain salt-soaked waste cloth, and the salt-soaked waste is arranged in low-temperature plasma and low-pressure The electrode is irradiated with low-temperature plasma to obtain nitrogen-doped carbon cloth. The invention applies low-temperature plasma irradiation technology to obtain nitrogen free radicals and hydrogen free radicals by adjusting the atmosphere of nitrogen and hydrogen, and directly converts non-woven fabric waste into nitrogen-doped carbon cloth. The prepared nitrogen-doped carbon cloth has a certain catalytic performance, up to 86% maximum CO Faradaic efficiency can be obtained.

Description

technical field [0001] The invention relates to resource utilization of non-woven waste cloth, in particular to a method for preparing nitrogen-doped carbon cloth by using non-woven waste cloth. Background technique [0002] Non-woven fabrics are also called non-woven fabrics, which generate a lot of waste during production and use. Every year, Chinese warp knitting enterprises can produce tens of millions of tons of non-woven fabric waste. At present, most warp knitting enterprises only transfer the sales of non-woven waste to third-party organizations, and will not choose to recycle. The non-woven fabric waste transferred to the third-party organization is either piled up in the storage area, landfilled, or used for waste incineration to generate electricity. Disposal of non-woven fabric waste through landfill not only occupies a large amount of land, but it is impossible to realize waste resource utilization, and in an anoxic and humid landfill environment, non-woven fa...

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): C25B11/043C25B1/23C01B32/05
CPCC25B1/00C01B32/05
Inventor 黄涛杜晶曹振兴宋东平刘龙飞张树文金俊勋周璐璐
Owner CHANGSHU INSTITUTE OF TECHNOLOGY