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Preparation method of organic-inorganic hybrid MnxCd1-xS solid solution photocatalyst

A photocatalyst and solid solution technology, applied in the field of materials, can solve problems affecting practical application, strong light corrosion, etc., and achieve the effects of many active sites, high reduction performance and high efficiency

Inactive Publication Date: 2021-08-31
HUAIBEI NORMAL UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But because their narrow bandgap makes them highly photocorrosive, the relatively fast recombination of electrons and holes affects their practical applications.

Method used

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  • Preparation method of organic-inorganic hybrid MnxCd1-xS solid solution photocatalyst

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Effect test

Embodiment 1

[0035] An organic-inorganic hybrid Mn x CD 1-x The method of preparing a solid solution of S photocatalyst, comprising the steps of:

[0036] First, manganese chloride and 1.6mol 0.4mol weighed cadmium nitrate added to the beaker, weighed and added to 35mL of deionized water in a beaker, stirred until clear (solution A); 2mol reweigh L- cysteine ​​into the reactor followed by 35mL weighed diethylenetriamine solution was added to the kettle and mix (solution B). After completion of the stirring, the solution B while stirring the solution A was added dropwise to the reaction kettle, stirred solution was continued for 6 hours. Finally, the reactor is placed in an oven and incubated 180 ℃ 5 hours. After completion of the reaction by centrifugation were washed with ethanol and deionized water three times to obtain a reaction product, after freeze drying, the finally obtained organic-inorganic hybrid Mn0.2 CD 0.8 Solid solution S photocatalyst.

[0037] Example photocatalytic performanc...

Embodiment 2

[0040] An organic-inorganic hybrid Mn x CD 1-x The method of preparing a solid solution of S photocatalyst, comprising the steps of:

[0041] First, manganese chloride and 1mol 1mol weighed cadmium nitrate added to the beaker, weighed and added to 35mL of deionized water in a beaker, stirred until clear (solution A); 2mol reweigh L- cysteine ​​was placed in the reactor, then 35mL weighed diethylenetriamine solution was added to the kettle and mix (solution B). After completion of the stirring, the solution B while stirring the solution A was added dropwise to the reaction kettle, stirred solution was continued for 6 hours. Finally, the reactor is placed in an oven and incubated 180 ℃ 5 hours. After completion of the reaction by centrifugation were washed with ethanol and deionized water three times to obtain a reaction product, after freeze drying, the finally obtained organic-inorganic hybrid Mn 0.5 CD 0.5 Solid solution S photocatalyst.

[0042] Example photocatalytic performanc...

Embodiment 3

[0045] An organic-inorganic hybrid Mn x CD 1-x The method of preparing a solid solution of S photocatalyst, comprising the steps of:

[0046] First, manganese chloride and 0.4mol 1.6mol weighed cadmium nitrate added to the beaker, weighed and added to 35mL of deionized water in a beaker, stirred until clear (solution A); 2mol reweigh L- cysteine ​​into the reactor followed by 35mL weighed diethylenetriamine solution was added to the kettle and mix (solution B). After completion of the stirring, the solution B while stirring the solution A was added dropwise to the reaction kettle, stirred solution was continued for 6 hours. Finally, the reactor is placed in an oven and incubated 180 ℃ 5 hours. After completion of the reaction by centrifugation were washed with ethanol and deionized water three times to obtain a reaction product, after freeze drying, the finally obtained organic-inorganic hybrid Mn 0.8 CD 0.2 Solid solution S photocatalyst.

[0047] Example photocatalytic performan...

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Abstract

The invention belongs to the technical field of materials, and discloses a preparation method of an organic-inorganic hybrid MnxCd1-xS solid solution photocatalyst. The preparation method of the organic-inorganic hybrid MnxCd1-xS solid solution photocatalyst comprises the following steps: (1) firstly, adding cadmium salt and manganese salt into a beaker, then adding deionized water, and stirring the liquid until the solution is transparent to obtain a solution A; (2) putting a sulfur compound into a reaction kettle, then adding an amine organic solution, and uniformly stirring the liquid to obtain a solution B; and (3) dropwise adding the solution A into the reaction kettle while stirring the obtained solution B, continuously stirring the solution, finally putting the reaction kettle into a drying oven, carrying out heat preservation reaction, and after the reaction is completed, washing, centrifuging and drying the reaction product to obtain a target product. The preparation method is simple, the prepared MnxCd1-xS solid solution has higher photocatalytic performance and stability compared with pure CdS and MnS, the photocatalytic carbon dioxide reduction activity is high, the stability is good, and the application prospect is wide.

Description

Technical field [0001] The present invention relates to the field of materials technology, particularly, to an organic-inorganic hybrid Mn x CD 1-x The method of preparing a solid solution of S photocatalyst. Background technique [0002] With green energy, broad spectrum, long-life, efficient purification, etc., photocatalysis will become one of the most important scientific and technological 21st century. By the help of a catalyst using carbon dioxide redox solar energy into other products, not only the atmospheric carbon dioxide concentration is lowered, but also provides a new manner of storage. And compared with the limited nature of traditional fossil fuels, solar energy is inexhaustible. Therefore, the photocatalytic reduction of carbon dioxide and development of innovative technologies will bring major changes for the development of new energy society, while promoting the rapid development of industry, transport, environmental protection and other fields. [0003] CdS and...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J27/04B01J37/20C01B32/40
CPCB01J27/04B01J37/20C01B32/40B01J35/39
Inventor 代凯刘丽忠张金锋
Owner HUAIBEI NORMAL UNIVERSITY
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