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Preparation of Two-Dimensional Molybdenum Disulfide Nanosheets by High-Gravity Technology
- Source :
- Industrial & Engineering Chemistry Research. 56:4736-4742
- Publication Year :
- 2017
- Publisher :
- American Chemical Society (ACS), 2017.
-
Abstract
- In this paper, a high-gravity technology was described to prepare two-dimensional molybdenum disulfide nanosheets from bulk materials. This high-gravity field, producing by a rotating packed bed, provides shear force and collision force to exfoliate layered bulk molybdenum disulfide into nanosheets. The effects of rotational speed, surfactant concentration, exfoliation time, packing volume fraction, and exfoliation time on the concentration were systematically studied. The results showed that the concentration of the as-prepared suspension could be easily controlled. The concentration is 0.37 mg/mL under optimum conditions. Moreover, the dispersion of two-dimensional molybdenum disulfide nanosheets could be stabile for a long time. The lateral size of as-produced molybdenum disulfide nanosheets ranged from 50 to 800 nm, and the mean lateral size was 380 nm. Almost 84% of nanosheets were less than five layers. We also demonstrated that high-gravity technology also can be applied to tungsten disulfide. This...
- Subjects :
- Packed bed
Materials science
General Chemical Engineering
Tungsten disulfide
Shear force
Inorganic chemistry
02 engineering and technology
General Chemistry
010402 general chemistry
021001 nanoscience & nanotechnology
01 natural sciences
Exfoliation joint
Industrial and Manufacturing Engineering
0104 chemical sciences
Suspension (chemistry)
chemistry.chemical_compound
chemistry
Chemical engineering
Volume fraction
0210 nano-technology
Dispersion (chemistry)
Molybdenum disulfide
Subjects
Details
- ISSN :
- 15205045 and 08885885
- Volume :
- 56
- Database :
- OpenAIRE
- Journal :
- Industrial & Engineering Chemistry Research
- Accession number :
- edsair.doi...........fafd6ea067c044301826227b945d824a
- Full Text :
- https://doi.org/10.1021/acs.iecr.7b00030