Hydrothermally synthesized Ni-doped CdS composite photocatalyst as well as preparation method and application thereof

A technology of hydrothermal synthesis and composite light, which is applied in the field of photocatalytic materials, can solve the problems of unfavorable large-scale promotion and expensive precious metals, and achieve the effects of inhibiting photocorrosion, uniform appearance, and good conductivity

Inactive Publication Date: 2022-04-05
SHAANXI UNIV OF SCI & TECH
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  • Summary
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Problems solved by technology

However, the high price of precious metals is not conducive to large-scale promotion, so other methods need to be found

Method used

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  • Hydrothermally synthesized Ni-doped CdS composite photocatalyst as well as preparation method and application thereof
  • Hydrothermally synthesized Ni-doped CdS composite photocatalyst as well as preparation method and application thereof
  • Hydrothermally synthesized Ni-doped CdS composite photocatalyst as well as preparation method and application thereof

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preparation example Construction

[0030] A hydrothermal synthesis of Ni-doped CDS composite photocatalysts and preparation methods thereof, including the following steps:

[0031] Step 1, first, raw materials such as cadmium acetate, thiramide are weighed in accordance with the following molar ratio. C 4 Hide 6 CDO 4· 2h 2 O: ch 3 CSNH 2 = (0.5 ~ 0.9): (0.6 ~ 1.0).

[0032] Step 2, the capacity ratio of 60 ml of ethylenediamine and ethylene glycol is added to: (1 to 5): 1 is then stirred at a magnetic stirrer at a speed of 500 r / min ~ 800r / min. Transparent solution A after 0.5H ~ 2H.

[0033] Step 3, the above solution A was poured into the inner liner of the polytetrafluoroethylene, followed by fixing the inner liner in an outer extrapylide, and the fill ratio was controlled at 60%. The temperature was controlled at 160 ° C to 180 ° C, and the reaction time was controlled at 5 to 8 h. The reactor is then naturally cooled to room temperature.

[0034] Step 4, the hydrothermal reaction ends, and the reactor is ...

Embodiment 1

[0039] 1) First, raw materials such as cadmium acetate, thiramide are weighed in accordance with the following molar ratio.

[0040] C 4 Hide 6 CDO 4· 2h 2 O: ch 3 CSNH 2 = 0.5: 0.6

[0041] 2) The capacity ratio of the above-mentioned mixed material is added to the amount of ethylenediamine and ethylene glycol is: 1: 1, then the magnetic stirrer is stirred at a magnetic stirrer at a rate of 500 r / min to obtain a transparent solution A.

[0042] 3) Pour the above solution A into the liner of the polytetrafluoroethylene, followed by fixing the inner liner in an outer extract, and the fill ratio is controlled at 60%. The temperature was controlled at 160 ° C, and the reaction time was controlled at 8 h. The reactor is then naturally cooled to room temperature.

[0043] 4) End of the hydrothermal reaction, the reaction kettle was naturally cooled to room temperature, and then the reaction was poured out of the reaction after the reaction, and the product was collected after three w...

Embodiment 2

[0048] 1) First, raw materials such as cadmium acetate, thiramide are weighed in accordance with the following molar ratio.

[0049] C 4 Hide 6 CDO 4· 2h 2 O: ch 3 CSNH 2 = 0.6: 0.7.

[0050] 2) The capacity ratio of 60 ml of ethylenediamine and ethylene glycol is added to: 2: 1 and then stirred at a magnetic stirrer at a rate of 600 r / min for 1 h, and the transparent solution A is obtained.

[0051] 3) Pour the above solution A into the liner of the polytetrafluoroethylene, followed by fixing the inner liner in an outer extract, and the fill ratio is controlled at 60%. The temperature was controlled at 170 ° C, and the reaction time was controlled at 7h. The reactor is then naturally cooled to room temperature.

[0052] 4) The hydrothermal reaction ends, and the reaction kettle is naturally cooled to room temperature, and then the reaction after the reaction is fed out, and the product was collected after three water and three alternately filtration, and the product was dried u...

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Abstract

The invention discloses a hydro-thermally synthesized Ni-doped CdS composite photocatalyst as well as a preparation method and application thereof. The hydro-thermally synthesized Ni-doped CdS composite photocatalyst comprises CdS powder, nickel chloride hexahydrate and urea in a ratio of (1-2): (0.4-1): (10-20). The preparation method comprises the following steps: step 1, weighing cadmium acetate and thioacetamide in a ratio of (0.5-0.8): (0.6-1.2), adding ethylenediamine and ethylene glycol in a ratio of (1-4): 1, and stirring to form a solution A; step 2, carrying out hydrothermal reaction on the solution A, and filtering to obtain CdS powder; step 3, adding CdS powder, nickel chloride hexahydrate and urea into deionized water according to a ratio of (1-2): (0.4-1): (10-20), and stirring to obtain a solution B; and step 4, carrying out hydrothermal reaction on the solution B, filtering and drying to obtain the Ni-doped CdS composite photocatalyst material.

Description

Technical field [0001] The present invention belongs to the field of photocatalytic materials, specifically belonging to a hydrothermal synthesis of Ni-doped CDS composite photocatalyst and preparation method thereof. Background technique [0002] Energy shortage and environmental pollution are currently facing problems that are common to all countries around the world. Earth's monthly fossil energy accumulated in the past two hundred years has been largely exploited and used in the past two hundred years, while a large number of fossil energy consumption, the pollutants produced are also released into the natural environment. Today, photocatalytic technology is one of the effective ways to solve environment and energy issues. [0003] The CDS is a typical transition metal sulfide semiconductor because its suitable band gap width (2.4 eV) conduction band position, and good visible light response should be one of the most focused photocatalysts. However, due to the rapid composite...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J27/043B01J37/10C01B3/04
Inventor 曹丽云牛梦凡黄剑锋冯亮亮陈倩何丹阳李晓艺
Owner SHAANXI UNIV OF SCI & TECH
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