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 limiting the photocatalytic performance of cadmium sulfide, being easy to be corroded by light, and unable to exist stably for a long time, and achieving excellent hydrogen production performance, easy recovery and stability. effect of structure

Active Publication Date: 2021-07-30
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 preparation method of a nickel and nickel carbide modified cadmium sulfide nanowire, which comprises the following steps: respectively dissolving cadmium chloride and sodium diethyldithiocarbamate trihydrate in water; and mixing the two solutions, and conducting stirring, centrifuging and drying; dissolving the dried solid in ethylenediamine, and then carrying out hydrothermal reaction to generate cadmium sulfide; dissolving cadmium sulfide, nickel nitrate and hexamethylenetetramine in water; transferring a formed solution into a reaction kettle, centrifuging the product, and conducting drying; and conducting calcining in a tubular furnace to obtain the nickel and nickel carbide modified cadmium sulfide. The obtained linear cadmium sulfide is good in dispersity and stable in structure; and the hydrogen yield of the modified cadmium sulfide obtained by using the method disclosed by the invention reaches 15000 [mu]mol g<-1> h<-1>, and good hydrogen production performance can still be kept after continuous reaction for 15 hours. The cadmium sulfide can effectively degrade antibiotics such as oxytetracycline (OTC), levofloxacin (LEV), tetracycline hydrochloride (TCH) and norfloxacin (NFX) and dye reactive red 2 (RR2), and the degradation performance can reach 78%-91% within 90 minutes.

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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IPC IPC(8): B01J27/22C01B3/04C02F1/30C02F101/30C02F101/38
CPCB01J27/22C01B3/042C02F1/30C01B2203/0277C01B2203/1058C02F2305/10C02F2101/30C02F2101/38B01J35/39Y02E60/36
Inventor 陈哲徐安然陈峰
Owner JILIN INST OF CHEM TECH
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