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Preparation method of molybdenum disulfide-silver sulfide composite nano-grade adsorption-photocatalyst

A molybdenum disulfide and nano-adsorption technology, applied in the field of nano-materials, can solve the problems of hindering development and low utilization rate of visible light, and achieve the effects of low cost, excellent photocatalytic performance, and good adsorption performance.

Inactive Publication Date: 2016-05-04
ZHENJIANG COLLEGE
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, TiO 2 The utilization rate of visible light is low, thus hindering its further development, therefore, the importance of developing new visible light catalysts is self-evident

Method used

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  • Preparation method of molybdenum disulfide-silver sulfide composite nano-grade adsorption-photocatalyst
  • Preparation method of molybdenum disulfide-silver sulfide composite nano-grade adsorption-photocatalyst
  • Preparation method of molybdenum disulfide-silver sulfide composite nano-grade adsorption-photocatalyst

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Experimental program
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Effect test

Embodiment 1

[0019] 0.24g (NH 4 ) 2 MoO 4 , 0.32gKSCN and 0.28gNH 2 OH·HCl was dissolved in 60 mL of deionized water. After completely dissolving, continue to stir for 30 min, then transfer the mixture to a 100 mL stainless steel reaction kettle, place it in a vacuum drying oven at 180°C for 24 h, and cool to room temperature. After the reaction product was separated by centrifugation, it was repeatedly washed with deionized water and absolute ethanol, and finally dried at 80° C. for 10 h under vacuum to obtain a gray-black product powder, that is, molybdenum disulfide nanoflowers.

[0020] 0.85gAgNO 3 and 0.16g of molybdenum disulfide were dispersed in 60mL of deionized water, and after stirring for 30min, the mixture was transferred to a 100mL stainless steel reaction kettle, placed in a vacuum oven at 160°C for 24h, and cooled to room temperature. After the reaction product was separated by centrifugation, it was washed repeatedly with deionized water and absolute ethanol, and final...

Embodiment 2

[0023] 0.24g (NH 4 ) 2 MoO 4 , 0.32gKSCN and 0.28gNH 2 OH·HCl was dissolved in 60 mL of deionized water. After completely dissolving, continue to stir for 30 min, then transfer the mixture to a 100 mL stainless steel reaction kettle, place it in a vacuum drying oven at 180°C for 24 h, and cool to room temperature. After the reaction product was separated by centrifugation, it was repeatedly washed with deionized water and absolute ethanol, and finally dried at 80° C. for 10 h under vacuum to obtain a gray-black product powder, that is, molybdenum disulfide nanoflowers.

[0024] 0.17gAgNO 3 and 0.16g of molybdenum disulfide were dispersed in 60mL of deionized water, and after stirring for 30min, the mixture was transferred to a 100mL stainless steel reaction kettle, placed in a vacuum oven at 160°C for 24h, and cooled to room temperature. After the reaction product was separated by centrifugation, it was washed repeatedly with deionized water and absolute ethanol, and final...

Embodiment 3

[0027] 0.24g (NH 4 ) 2 MoO 4 , 0.32gKSCN and 0.28gNH 2 Dissolve OH·HCl in 60 mL of deionized water. After completely dissolving, continue to stir for 30 min, then transfer the mixture to a 100 mL stainless steel reaction kettle, place it in a vacuum oven at 320°C for 18 h, and cool to room temperature. After the reaction product was separated by centrifugation, it was repeatedly washed with deionized water and absolute ethanol, and finally dried at 80° C. for 10 h under vacuum to obtain a gray-black product powder, that is, molybdenum disulfide nanoflowers.

[0028] 0.54gAgNO 3 and 0.16g of molybdenum disulfide were dispersed in 60mL of deionized water, and after stirring for 30min, the mixture was transferred to a 100mL stainless steel reaction kettle, placed in a vacuum oven at 120°C for 24h, and cooled to room temperature. After the reaction product was separated by centrifugation, it was washed repeatedly with deionized water and absolute ethanol, and finally dried at ...

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Abstract

The invention provides a preparation method of a molybdenum disulfide-silver sulfide composite nano-grade adsorption-photocatalyst. According to the invention, (NH4)2MoO4, KSCN and NH2OH.HCl are adopted as raw material for synthesizing molybdenum disulfide nanoflowers with a hydrothermal method; the obtained molybdenum disulfide nanoflowers and AgNO3 are added into deionized water; stirring is carried out, and an obtained mixture is added into a reaction kettle; the reaction kettle is sealed, and a thermostatic reaction is carried out; and the obtained reaction product is separated, washed and dried, such that the molybdenum disulfide-silver sulfide composite nano-grade adsorption-photocatalyst is obtained. The preparation method provided by the invention has the advantages of low cost, easy and easy-to-control production process, and high product yield. The method is suitable for large-scale industrial productions.

Description

technical field [0001] The invention belongs to the technical field of nanometer materials, and in particular relates to a preparation method of molybdenum disulfide-silver sulfide composite nano-adsorption-photocatalyst. Background technique [0002] With the rapid development of human industrial civilization, the problem of environmental pollution is becoming more and more serious. The problem of environmental pollution has become a big problem that directly threatens the survival of human beings and needs to be solved urgently. Therefore, environmental protection and sustainable development have become the first things that people must consider. question. In 1972, Fujishjma and Honda published on the Nature magazine about TiO 2 The paper on the photo-splitting of water on the electrode can be seen as a sign of the beginning of a new era of heterogeneous photocatalysis. However, TiO 2 The utilization rate of visible light is low, which hinders its further development. T...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J20/02B01J20/30B01J27/051
CPCB01J20/0218B01J20/0233B01J20/0266B01J27/04B01J27/051
Inventor 唐国钢唐华汪萍
Owner ZHENJIANG COLLEGE
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