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Method for preparing gold-loaded carbon cloth from non-woven fabric waste cloth

A technology for preparing non-woven fabrics and gold, which is applied in the field of preparing gold-carrying carbon fabrics by using non-woven waste fabrics, can solve the problems of high disposal cost, large amount of waste liquid, and difficulty in disposal of waste liquid, etc., and achieves the effect of simple preparation process.

Active Publication Date: 2021-02-09
CHANGSHU INSTITUTE OF TECHNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the preparation of gold nanomaterials by the deposition-precipitation method requires a large amount of reducing agent, and it is easy to produce a large amount of waste liquid containing toxic substances. In addition, the waste liquid generated during the preparation process is difficult and expensive to dispose of. There are fewer tripartite units
[0004] How to realize the resource utilization of non-woven fabrics and at the same time prepare gold nanomaterials is an unprecedented research

Method used

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  • Method for preparing gold-loaded carbon cloth from non-woven fabric waste cloth

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0014] Effect of low-temperature plasma irradiation time on the catalytic performance of prepared gold-supported carbon cloth

[0015] Preparation of gold-loaded carbon cloth: as figure 1 As shown, take chloroauric acid and dissolve in water, prepare 0.1moL / L chloroauric acid aqueous solution, take chloroauric acid aqueous solution and non-woven fabric waste cloth respectively according to liquid-solid ratio 1:1 (mL:mg), put Soak the waste non-woven cloth in the aqueous solution of chloroauric acid, take out the waste non-woven cloth after 10 minutes, and obtain the waste gold-impregnated cloth; spread the waste gold-impregnated cloth on the low-voltage electrode of the low-temperature plasma, and connect it after being exposed to the atmosphere. power supply, low-temperature plasma irradiation 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 gold-loaded carbon cloth, in which the low-temperature plasma effect...

Embodiment 2

[0021] Effect of volume ratio of hydrogen to argon on the catalytic performance of prepared gold-supported carbon cloth

[0022] Preparation of gold-loaded carbon cloth: Weigh chloroauric acid and dissolve it in water to prepare a 0.3moL / L chloroauric acid aqueous solution, and weigh the chloroauric acid aqueous solution and the non-woven fabric respectively according to the liquid-solid ratio of 2:1 (mL:mg). Waste cloth, soak non-woven fabric waste cloth in chloroauric acid aqueous solution, take out non-woven fabric waste cloth after 20 minutes, obtain gold impregnated waste cloth; Spread gold impregnated waste cloth on the low-temperature plasma low-voltage electrode, expose to Turn on the power after the atmosphere, and perform low-temperature plasma irradiation for 2.5 hours to obtain gold-loaded carbon cloth, wherein the low-temperature plasma exposure atmosphere is a mixed gas of hydrogen and argon, and the volume ratio of hydrogen and argon is 2.5:100, 3.5: 100, 4.5:10...

Embodiment 3

[0028] The effect of the distance between the dielectric plate and the gold-impregnated waste cloth on the catalytic performance of the prepared gold-supported carbon cloth

[0029]Preparation of gold-loaded carbon cloth: Weigh chloroauric acid and dissolve it in water to prepare a 0.5moL / L chloroauric acid aqueous solution, and weigh the chloroauric acid aqueous solution and the non-woven fabric according to the liquid-solid ratio of 3:1 (mL:mg). Waste cloth, soak non-woven fabric waste cloth in chloroauric acid aqueous solution, take out non-woven fabric waste cloth after 30 minutes, obtain gold-impregnated waste cloth; Lay gold-impregnated waste cloth on the low-temperature plasma low-voltage electrode, expose to After the atmosphere is turned on, the power is turned on, and the low-temperature plasma is irradiated for 2.5 hours to obtain the gold-supported carbon cloth. The voltage of the body irradiation is 50kV, and the low-temperature plasma irradiation uses a dielectri...

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Abstract

The invention discloses a method for preparing gold-loaded carbon cloth from non-woven fabric waste cloth. The method comprises the steps that: the non-woven fabric waste cloth is soaked in a chloroauric acid aqueous solution to obtain gold-leached waste cloth; the gold-leached waste cloth is arranged on a low-temperature plasma low-voltage electrode to be subjected to low-temperature plasma irradiation, and the gold-loaded carbon cloth is obtained. The preparation process is simple; the low-temperature plasma irradiation technology is applied; hydrogen free radicals are obtained by adjustingthe hydrogen and argon atmosphere; the non-woven fabric waste cloth is directly converted into the gold-loaded carbon cloth; the prepared gold-loaded carbon cloth has certain catalytic performance; and 59% acetophenone can be obtained at most.

Description

technical field [0001] The invention relates to resource utilization of waste non-woven fabrics, in particular to a method for preparing gold-loaded carbon cloth from waste non-woven fabrics. Background technique [0002] Every year, China's non-woven fabric production, manufacturing, sales, and processing enterprises will generate a large amount of non-woven fabric waste, and it is increasing year by year. At present, most of the non-woven waste fabrics are simply collected and then landfilled or incinerated. However, the disposal of waste non-woven fabrics by landfill or incineration has problems such as occupying a large amount of land, low utilization rate of high-value waste, polluting soil and groundwater, and increasing dioxin emissions in flue gas. The recovery and recycling of waste through recycling will also have an adverse effect on the quality of non-woven products and production equipment. Therefore, it is particularly critical to broaden the ways of non-wove...

Claims

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Application Information

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IPC IPC(8): B01J23/52B01J37/02B01J37/34B82Y30/00B82Y40/00C07C49/78C07C45/29
CPCB01J23/52B01J37/0201B01J37/349B82Y30/00B82Y40/00C07C45/29B01J35/40C07C49/78
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