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Method for preparing Mo-doped cobalt sulfide nanoparticles

A nanoparticle, cobalt sulfide technology, used in chemical instruments and methods, catalyst activation/preparation, chemical/physical processes, etc.

Pending Publication Date: 2021-07-23
XINJIANG UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0012] According to the above reports, in CoS 1.097 There are few literatures on the doping of Mo atoms, most of which are pure phase structures, and there are few reports in the field of photocatalysis

Method used

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  • Method for preparing Mo-doped cobalt sulfide nanoparticles
  • Method for preparing Mo-doped cobalt sulfide nanoparticles
  • Method for preparing Mo-doped cobalt sulfide nanoparticles

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] 1. First, set the CH 4 N 2 O (5mmol) and CoCl 2 ·6H 2 O (5 mmol) was dissolved in 40 ml of deionized water, sonicated for 20 min, and then the mixed solution was transferred to a 50 ml hydrothermal reactor and placed in an oven at 120 °C for 10 h. A pink precipitate was obtained, which was washed several times with deionized water and ethanol, and dried in an oven at 60 °C for 8 hours. Grind and collect the product in an agate mortar. Finally, Co (CO 3 ) 0.35 Cl 0.20 (OH) 1.10 Smooth nanorod structure. The prepared Co (CO 3 ) 0.35 Cl 0.20 (OH) 1.10 (130mg) was dissolved in 30ml deionized water, then thioacetamide (150mg) was added, sonicated for 20min, and then the mixed solution was transferred to a 50ml lined hydrothermal reaction kettle. It was placed in an oven at 100 °C for 4 h to obtain a black precipitate, which was washed several times with deionized water and alcohol, and then dried in an oven at 60 °C for 8 h. Grind and collect the product in an ...

Embodiment 2

[0030] First, the CH 4 N 2 O (5mmol) and CoCl 2 ·6H 2 O (5 mmol) was dissolved in 40 ml of deionized water, sonicated for 20 min, and then the mixed solution was transferred to a 50 ml hydrothermal reactor and placed in an oven at 120 °C for 10 h. A pink precipitate was obtained, which was washed several times with deionized water and ethanol, and dried in an oven at 60 °C for 8 hours. Grind and collect the product in an agate mortar. Finally, Co (CO 3 ) 0.35 Cl 0.20 (OH) 1.10 Smooth nanorod structure. The prepared Co (CO 3 ) 0.35 Cl 0.20 (OH) 1.10 (130mg) was dissolved in 30ml deionized water, then thioacetamide (150mg) was added, sonicated for 20min, and then the mixed solution was transferred to a 50ml lined hydrothermal reaction kettle. It was placed in an oven at 120 °C for 4 h to obtain a black precipitate, which was washed several times with deionized water and alcohol, and then dried in an oven at 60 °C for 8 h. Grind and collect the product in an agate m...

Embodiment 3

[0032] First, the CH 4 N 2 O (5mmol) and CoCl 2 ·6H 2O (5 mmol) was dissolved in 40 ml of deionized water, sonicated for 20 min, and then the mixed solution was transferred to a 50 ml hydrothermal reactor and placed in an oven at 120 °C for 10 h. A pink precipitate was obtained, which was washed several times with deionized water and ethanol, and dried in an oven at 60 °C for 8 hours. Grind and collect the product in an agate mortar. Finally, Co (CO 3 ) 0.35 Cl 0.20 (OH) 1.10 Smooth nanorod structure. The prepared Co (CO 3 ) 0.35 Cl 0.20 (OH) 1.10 (130mg) was dissolved in 30ml deionized water, then thioacetamide (150mg) was added, sonicated for 20min, and then the mixed solution was transferred to a 50ml lined hydrothermal reaction kettle. It was placed in an oven at 140 °C for 4 h to obtain a black precipitate, which was washed several times with deionized water and alcohol, and then dried in an oven at 60 °C for 8 h. Grind and collect the product in an agate mo...

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Abstract

The invention relates to a photocatalytic material of Mo atom doped cobalt sulfide (CoS1.097) nanoparticles, and a preparation method of the Mo atom doped cobalt sulfide (CoS1.097) nanoparticles. According to the material, analytically pure cobalt chloride hexahydrate (CoCl2. 6H2O), ammonium molybdate tetrahydrate ((NH4) 6Mo7O24. 4H2O), urea (CH4N2O), thioacetamide (CH3CSNH2), ethylene glycol ((CH2OH) 2) and other drugs are mainly used as raw materials, and the materials with different proportions can be prepared through a multi-step hydrothermal method. The degradation performance of the sample on methylene blue is tested in a photocatalytic reaction instrument by using light in an ultraviolet visible light region and a near-infrared light region respectively, and finally, the sample prepared when the feeding ratio of Mo to Co is 1: 2 has excellent photocatalytic degradation performance.

Description

technical field [0001] The invention belongs to the field of nano-semiconductor photocatalysis, and in particular relates to a method for preparing Mo-doped cobalt sulfide nanoparticles. Background technique [0002] Two-dimensional transition metal chalcogenides have been regarded as an important candidate material for photocatalysts due to their excellent optical properties. As a relatively complex compound, cobalt sulfide exhibits different chemical formulas and crystal phase structures due to different stoichiometric ratios, such as Co 9 S 8 ,Co 3 S 4 ,CoS 2 , CoS, etc. Quantum chemistry calculations show that Co m S n The surface structure of the surface can create an electron transfer pathway for oxygen reduction kinetics, which can promote the promotion of catalytic activity. Among them, Co 9 S 8 Its structure is relatively complex and has good catalytic performance, so it has been widely studied and used. So far, cobalt sulfide, as an excellent semiconduct...

Claims

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Application Information

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IPC IPC(8): B01J27/051B01J37/10B01J37/20C02F1/30
CPCB01J27/0515B01J37/10B01J37/20C02F1/30C02F2305/10C02F2101/308B01J35/39B01J35/23
Inventor 吴荣徐帅张东
Owner XINJIANG UNIVERSITY
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