Preparation method and application of ni/ni3c/cds nanowire catalyst with photocatalytic performance

A photocatalyst and nanowire technology, applied in the field of photocatalysis, can solve the problems of long-term stable existence, limited photocatalytic performance of cadmium sulfide, and easy corrosion of pure cadmium sulfide by light, so as to achieve excellent hydrogen production performance, good adsorption, The effect of easy recycling

Active Publication Date: 2022-05-03
JILIN INST OF CHEM TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Moreover, pure cadmium sulfide is easily corroded by light and cannot exist stably for a long time
These disadvantages limit the photocatalytic performance of CdS

Method used

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  • Preparation method and application of ni/ni3c/cds nanowire catalyst with photocatalytic performance
  • Preparation method and application of ni/ni3c/cds nanowire catalyst with photocatalytic performance
  • Preparation method and application of ni/ni3c/cds nanowire catalyst with photocatalytic performance

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Experimental program
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Effect test

Embodiment 1

[0024] This embodiment provides a Ni / Ni3C / CdS nanowire catalyst with photocatalytic performance, and its preparation method comprises the following steps:

[0025] (1) Cadmium chloride 0.685g, sodium diethyldithiocarbamate trihydrate 1.35g. Dissolve them in 50ml of deionized water respectively, add the cadmium chloride solution dropwise into the sodium diethyldithiocarbamate trihydrate solution, and stir while dropping. After stirring for 1 h, wash with deionized water and absolute ethanol, centrifuge and dry.

[0026] (2) Dissolve the obtained solid in 40ml of ethylenediamine, and stir until dissolved. The solution was transferred to a 60ml reaction kettle, and reacted for 24h in an oven at 180°C. After the reactor was cooled to room temperature, it was washed with deionized water, centrifuged, and freeze-dried. CdS in the form of nanofibers was obtained.

[0027] (3) 100mg of CdS, 0.2mmol of nickel nitrate hexahydrate and 0.4mmol of hexamethylenetetramine were dissolved ...

Embodiment 2

[0030] This embodiment provides a Ni / Ni3C / CdS nanowire catalyst with photocatalytic performance, and its preparation method comprises the following steps:

[0031] (1) Cadmium chloride 0.685g, sodium diethyldithiocarbamate trihydrate 1.35g. Dissolve them in 50ml of deionized water respectively, add the cadmium chloride solution dropwise into the sodium diethyldithiocarbamate trihydrate solution, and stir while dropping. After stirring for 1 h, wash with deionized water and absolute ethanol, centrifuge and dry.

[0032] (2) Dissolve the obtained solid in 40ml of ethylenediamine, and stir until dissolved. The solution was transferred to a 60ml reaction kettle, and reacted for 24h in an oven at 180°C. After the reactor was cooled to room temperature, it was washed with deionized water, centrifuged, and freeze-dried. CdS in the form of nanofibers was obtained.

[0033] (3) 100mg of CdS, 0.3mmol of nickel nitrate hexahydrate and 0.6mmol of hexamethylenetetramine were dissolved ...

Embodiment 3

[0036] This embodiment provides a Ni / Ni3C / CdS nanowire catalyst with photocatalytic performance, and its preparation method comprises the following steps:

[0037] (1) Cadmium chloride 0.685g, sodium diethyldithiocarbamate trihydrate 1.35g. Dissolve them in 50ml of deionized water respectively, add the cadmium chloride solution dropwise into the sodium diethyldithiocarbamate trihydrate solution, and stir while dropping. After stirring for 1 h, wash with deionized water and absolute ethanol, centrifuge and dry.

[0038] (2) Dissolve the obtained solid in 40ml of ethylenediamine, and stir until dissolved. The solution was transferred to a 60ml reaction kettle, and reacted for 24h in an oven at 180°C. After the reactor was cooled to room temperature, it was washed with deionized water, centrifuged, and freeze-dried. CdS in the form of nanofibers was obtained.

[0039](3) 100mg of CdS, 0.4mmol of nickel nitrate hexahydrate and 0.8mmol of hexamethylenetetramine were dissolved i...

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Abstract

The invention is applicable to the technical field of photocatalysis, and provides a method for preparing nickel and nickel carbide modified cadmium sulfide nanowires, which comprises: cadmium chloride and sodium diethyldithiocarbamate trihydrate dissolved in water respectively. The two solutions were mixed, stirred, centrifuged and dried. The dried solid is dissolved in ethylenediamine and then hydrothermally reacted to generate cadmium sulfide. Dissolve cadmium sulfide, nickel nitrate, and hexamethylenetetramine in water. Transfer to a reaction kettle, centrifuge the product, and dry it. Calcined in a tube furnace to obtain nickel and nickel carbide modified cadmium sulfide. The linear cadmium sulfide obtained by the present invention has good dispersion and stable structure; the modified cadmium sulfide obtained by the method of the present invention has a hydrogen production capacity of 15000 μmolg ‑1 h ‑1 , and continued to react for 15 hours, still able to maintain good hydrogen production performance. It can also effectively degrade oxytetracycline (OTC), levofloxacin (LEV), tetracycline hydrochloride (TCH), norfloxacin (NFX), and other antibiotics and dye reactive red 2 (RR2), within 90 minutes, the degradation performance reaches 78 %~91%.

Description

technical field [0001] The invention belongs to the technical field of photocatalysis, and in particular relates to a Ni / Ni3C / CdS nanowire catalyst with photocatalytic performance, a preparation method and application thereof. Background technique [0002] Environmental pollution and energy shortages have become important challenges facing mankind. Water pollution is closely related to human's daily life. Due to the abuse of antibiotics in agriculture and aquaculture, the content of antibiotics in water bodies exceeds the standard, threatening the normal life of human beings. Therefore, finding a new technology to deal with water pollution has attracted widespread attention. [0003] As a new green chemical technology, photocatalytic hydrogen production technology can effectively solve the troubles caused by the rapid growth of population and the increasing depletion of fossil energy. Photocatalytic technology can convert light energy into chemical energy, and the photocat...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01J27/22C01B3/04C02F1/30C02F101/30C02F101/38
CPCB01J35/004B01J27/22C01B3/042C02F1/30C01B2203/0277C01B2203/1058C02F2305/10C02F2101/30C02F2101/38Y02E60/36
Inventor 陈哲徐安然陈峰
Owner JILIN INST OF CHEM TECH
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