Study of structural, optical, and thermal properties in MoS2-based nanocomposites: iron and gold

Recently, molybdenum disulfide (MoS 2 ), as one of the most stable layered transitional metal dichalcogenides, has attracted lots of attention because it shows high absorbance in the near-infrared (NIR) region, high surface area, good photothermal properties, and good biosafety. So it has been exten...

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Bibliographic Details
Published in:European physical journal plus 2022-11, Vol.137 (11), p.1284, Article 1284
Main Authors: Salehi, Nasrin, Abareshi, Afsaneh
Format: Article
Language:English
Subjects:
Applied and Technical Physics
Aqueous solutions
Atomic
Biomedical materials
Cancer therapies
Complex Systems
Condensed Matter Physics
Fourier transforms
Gold
Heat
High resolution electron microscopy
Iron oxides
Irradiation
Mathematical and Computational Physics
Molecular
Molybdenum
Molybdenum disulfide
Nanocomposites
Nanoparticles
Nanorods
Near infrared radiation
Optical and Plasma Physics
Optical properties
Physics
Physics and Astronomy
Polyethylene glycol
Regular Article
Stainless steel
Theoretical
Thermal properties
Thermodynamic properties
Toxicity
X-ray diffraction
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Summary:Recently, molybdenum disulfide (MoS 2 ), as one of the most stable layered transitional metal dichalcogenides, has attracted lots of attention because it shows high absorbance in the near-infrared (NIR) region, high surface area, good photothermal properties, and good biosafety. So it has been extensively applied as a novel photothermal agent in biomedical applications. Here, we examine two nanocomposites comprised of molybdenum disulfide-gold nanorod (MoS 2 –Au) and molybdenum disulfide-iron oxide magnetic nanoparticle (MoS 2 -Fe 3 O 4 ) having unique structural features. These nanocomposites were developed by using facile preparation strategies; then, all samples (MoS 2 nanoflakes, MoS 2 –Au, and MoS 2 –Fe 3 O 4 ) were characterized by X-ray diffraction (XRD), high-resolution transmission electron microscopy (HRTEM), Raman, Fourier transform infrared (FTIR), and ultraviolet–visible (UV–Vis) spectroscopies. These characterizations confirm that gold nanorods (AuNRs) and Fe 3 O 4 nanoparticles have been incorporated between MoS 2 nanoflakes separately. Finally, photothermal results of samples indicate that MoS 2 –Au nanocomposite produced higher photothermal heat than two other samples after 10-min laser irradiation. So, MoS 2 –Au nanocomposite can be a suitable photothermal agent for further biological applications such as photothermal therapy and drug delivery.
ISSN:2190-5444
2190-5444
DOI:10.1140/epjp/s13360-022-03502-z