Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

MoS2/NiO hollow microsphere material as well as preparation method and application thereof

A hollow microsphere and microsphere technology, applied in chemical instruments and methods, chemical/physical processes, adsorbed water/sewage treatment, etc., can solve the problems of complex preparation process, few active sites, small specific surface area, etc. Simple process, improved catalytic performance, high catalytic activity effect

Active Publication Date: 2019-06-21
CHINA THREE GORGES UNIV
View PDF8 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Solid micro-nano structures generally have a smaller specific surface area, resulting in fewer active sites and reduced activity
The preparation of hollow micro-nano structures mostly requires surfactants or templates, the preparation process is complicated, and the controllability is poor.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • MoS2/NiO hollow microsphere material as well as preparation method and application thereof
  • MoS2/NiO hollow microsphere material as well as preparation method and application thereof
  • MoS2/NiO hollow microsphere material as well as preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] (1) Dissolve 0.32g coconut oil alcohol, 1.4g nickel nitrate hexahydrate, and 0.5403 urea in 225ml deionized water, and stir for 30 minutes to dissolve them all.

[0028] (2) Transfer 40ml of the mixed solution obtained in step (1) to the lining of the hydrothermal reaction kettle, and react at 160°C for 24h.

[0029] (3) Wash the product obtained in step (2) with deionized water and ethanol several times, collect the product, and dry it at 80°C for 24 hours to obtain a precursor.

[0030] (4) The precursor obtained in step (3) was sintered at 300 °C for 2 h in an air atmosphere to obtain pure NiO ultrathin nanosheets.

[0031] (5) Dissolve 1mmol ammonium molybdate and 2mmol thiourea in a mixed solution of 30mL ethylenediamine, 8mL ethylene glycol and 2ml, add 0.30g NiO ultra-thin nanosheets, stir at room temperature for 30min, and react the resulting mixed solution at 180°C for 24h. Washing and drying to obtain MoS 2 / NiO hollow microspheres.

[0032] MoS prepared ab...

Embodiment 2

[0038] (1) Dissolve 0.5g coconut oil alcohol, 2g nickel nitrate hexahydrate, and 0.6 urea in 180ml deionized water, and stir for 30 minutes to dissolve them all.

[0039] (2) Transfer 40ml of the mixed solution obtained in step (1) to the lining of the hydrothermal reaction kettle, and react at 180°C for 24h.

[0040] (3) Wash the product obtained in step (2) with deionized water and ethanol several times, collect the product, and dry it at 80°C for 24 hours to obtain a precursor.

[0041] (4) The precursor obtained in step (3) was sintered at 250°C for 2h in an air atmosphere to obtain pure NiO ultrathin nanosheets.

[0042] (5) Dissolve 1mmol ammonium molybdate and 5mmol thiourea in a mixed solution of 20mL ethylenediamine, 10mL ethylene glycol and 5ml, add 0.04g NiO ultra-thin nanosheets, stir at room temperature for 30min, and react the resulting mixed solution at 180°C for 24h. Washing and drying to obtain MoS 2 / NiO hollow microspheres.

[0043] MoS prepared above 2 ...

Embodiment 3

[0049] (1) Dissolve 0.5g coconut oil alcohol, 2g nickel nitrate hexahydrate, and 0.6 urea in 180ml deionized water, and stir for 30 minutes to dissolve them all.

[0050] (2) Transfer 40ml of the mixed solution obtained in step (1) to the lining of the hydrothermal reaction kettle, and react at 180°C for 24h.

[0051] (3) Wash the product obtained in step (2) with deionized water and ethanol several times, collect the product, and dry it at 80°C for 24 hours to obtain a precursor.

[0052] (4) The precursor obtained in step (3) was sintered at 250°C for 2h in an air atmosphere to obtain pure NiO ultrathin nanosheets.

[0053] (5) Dissolve 1mmol ammonium molybdate and 5mmol thiourea in a mixed solution of 20mL ethylenediamine, 10mL ethylene glycol and 5ml, add 0.08g NiO ultra-thin nanosheets, stir at room temperature for 30min, and react the resulting mixed solution at 180°C for 24h. Washing and drying to obtain MoS 2 / NiO hollow microspheres.

[0054] MoS prepared above 2 ...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
diameteraaaaaaaaaa
thicknessaaaaaaaaaa
sizeaaaaaaaaaa
Login to View More

Abstract

The invention discloses a preparation method and application of a MoS2 / NiO hollow microsphere. The preparation method comprises the following steps: preparing a NiO ultra-thin nano-sheet by adopting aprecursor calcination method, and then adding the NiO ultra-thin nano-sheet and a MoS2 nano-sphere into the MoS2 preparation process for assembly and forming the MoS2 / NiO hollow nano-sphere. The preparation method disclosed by the invention has the benefits that a template agent and a surface active agent are not required, the process is simple, the yield is high, and the industrial production iseasy; a hollow structure has a relatively large specific surface area, a rich pore channel structure, an active site and relatively high catalytic activity; a micro-sphere structure can be separatedand recycled by a precipitation method and is simple in recovery process; MoS2 and NiO in the compound micro-sphere are of amorphous structures and have more defects, so that the catalytic performances are further improved; the MoS2 / NiO hollow microsphere prepared with the method has good stability, repeatable cycle performance and a good application prospect in aspects of sewage treatment, methanol oxidation, electro-catalysis and the like.

Description

technical field [0001] The present invention relates to MoS 2 The preparation method and application of NiO / NiO hollow microspheres belong to the field of nano material preparation technology and environmental protection. Background technique [0002] The micro-nano hierarchical porous structure assembled by low-dimensional nano-unit structure retains the high performance of nanoparticles, and at the same time has a high specific surface area, rich pore structure, and more active sites. The synergistic effect of the micro-nano multi-level structure is conducive to the adsorption of reactant molecules and product molecules on the surface of the hierarchical structure and the transportation inside the material. At the same time, the micro-scale structure is easy to separate during actual use and facilitates the recycling of materials. Research hotspots in the field of functional materials. [0003] Nitrophenol compounds are the most common, difficult-to-degrade and highly to...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): B01J27/051B01J35/08B01J35/10C25B1/04C25B11/06B01J20/10B01J20/28B01J20/30C02F1/28C02F101/30
CPCY02E60/36
Inventor 乔秀清陈秋爽李杨李秋昊李东升
Owner CHINA THREE GORGES UNIV
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com